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France · Multi-region weather view

Alsace & Jura

Eastern French vineyards along the Vosges and Jura foothills.

Mountain rain shadows, continental winters, and elevation separate the drier Rhine plain from wetter Jura sites.

Climate comparisons use the 1991–2020 combined regional record · updated through Aug 20, 2026.

Current conditions

Observations through Aug 30, 2026 · 06:00 UTC

Temperature16.8°C
Dew Point15.9°C
Relative Humidity95%
24h Rainfall0.3 mmmodeled IFS total through Aug 29

Vintage explorer

Compare this vintage →

Slightly cooler and moderately wetter than normal.

Mean temperature15.6°C
Temperature anomaly-0.1°Cvs 1991-2020
Growing degree days1266base 10°C
Hot days9≥ 32°C

What stood out in 2013

Frequent rain can mean more canopy growth and more disease pressure. Rain close to harvest can raise rot pressure and shorten the picking window. A freeze after budbreak can damage new growth and reduce the crop.

Wetter than baseline · Moderate confidence

Growing-season precipitation was 126 mm above the 1991–2020 baseline.

Frequent rain can mean more canopy growth and more disease pressure.

More harvest rain than usual · High confidence

Harvest-window precipitation totaled 237 mm, +63 mm versus baseline.

Rain close to harvest can raise rot pressure and shorten the picking window.

Spring freeze recorded · Moderate confidence

The regional record had 7 spring day(s) at or below -2°C.

A freeze after budbreak can damage new growth and reduce the crop.

How unusual was 2013?

The ranking compares vintages that meet the data-coverage threshold and use the same source, regional rules, and 1991-2020 baseline.

Growing-season temperature

15th coolest of 35 vintages Cooler than 20 of 34 other vintages 15.6°C

Growing-season rainfall

2nd wettest of 35 vintages Wetter than 33 of 34 other vintages 760.2 mm

Heat accumulation

15th lowest of 35 vintages Lower than 20 of 34 other vintages 1266 GDD

Hot days

10th most of 35 vintages More than 24 of 34 other vintages 9 days

2013 month by month

Compared with 1991–2020

Follow heat accumulation, rainfall, frost exposure, and the region’s growing and harvest windows in calendar order.

Frost watch Growing season Harvest window
  1. 1–31
    Frost watch

    Heat accumulation

    2013 0 GDD
    Typical 12 GDD

    Rainfall

    2013 62.3 mm
    Typical 75.6 mm
    2013 freezing days
    14
    Typical
    7.6

    More freezing days than the typical month.

  2. 1–30
    Frost watchGrowing season

    Heat accumulation

    2013 61 GDD
    Typical 54 GDD

    Rainfall

    2013 105.3 mm
    Typical 79.0 mm
    2013 freezing days
    3
    Typical
    1.8

    More freezing days than the typical month.

  3. 1–31
    Frost watchGrowing season

    Heat accumulation

    2013 67 GDD
    Typical 145 GDD

    Rainfall

    2013 173.7 mm
    Typical 107.3 mm
    2013 freezing days
    0
    Typical
    0.0

    Heat accumulation ran behind the typical month.

  4. 1–30
    Growing season

    Heat accumulation

    2013 216 GDD
    Typical 243 GDD

    Rainfall

    2013 98.0 mm
    Typical 94.6 mm

    Close to the typical monthly pattern.

  5. 1–31
    Growing season

    Heat accumulation

    2013 351 GDD
    Typical 310 GDD

    Rainfall

    2013 74.9 mm
    Typical 90.5 mm

    Close to the typical monthly pattern.

  6. 1–31
    Growing season

    Heat accumulation

    2013 291 GDD
    Typical 302 GDD

    Rainfall

    2013 70.9 mm
    Typical 87.8 mm

    Close to the typical monthly pattern.

  7. 1–30
    Growing seasonHarvest window

    Heat accumulation

    2013 176 GDD
    Typical 169 GDD

    Rainfall

    2013 106.2 mm
    Typical 83.6 mm

    Close to the typical monthly pattern.

  8. 1–31
    Growing seasonHarvest window

    Heat accumulation

    2013 104 GDD
    Typical 69 GDD

    Rainfall

    2013 131.1 mm
    Typical 91.2 mm

    Heat accumulation ran ahead of the typical month.

View milestone calendar data as a table
Month2013 GDDTypical GDD2013 rainfallTypical rainfall2013 freezing daysTypical freezing days
March 2013 0 GDD 12 GDD 62.3 mm 75.6 mm 147.6
April 2013 61 GDD 54 GDD 105.3 mm 79.0 mm 31.8
May 2013 67 GDD 145 GDD 173.7 mm 107.3 mm 00.0
June 2013 216 GDD 243 GDD 98.0 mm 94.6 mm Outside frost windowOutside frost window
July 2013 351 GDD 310 GDD 74.9 mm 90.5 mm Outside frost windowOutside frost window
August 2013 291 GDD 302 GDD 70.9 mm 87.8 mm Outside frost windowOutside frost window
September 2013 176 GDD 169 GDD 106.2 mm 83.6 mm Outside frost windowOutside frost window
October 2013 104 GDD 69 GDD 131.1 mm 91.2 mm Outside frost windowOutside frost window
Calendar data and method

Monthly values are weighted across every configured regional sample using stored Google ARCO ERA5 daily reanalysis. “Typical” is the mean monthly total across 30 baseline seasons. GDD is counted only inside the configured growing window; freezing days are counted only inside the frost-watch window; rainfall covers every displayed calendar day.

Selected-vintage coverage is 100%. Source rows were last retrieved Aug 20, 2026.

Replay the 2013 growing season

214 daily regional observations

Move through the season to follow temperature, rainfall, accumulated heat, and recorded weather events day by day.

Replay data and method

Daily values are weighted across every configured regional sample using stored Google ARCO ERA5 reanalysis. Coverage is 100%. Source rows were last retrieved Aug 20, 2026.

Closest weather matches

These years had the most similar growing-season and harvest weather.

  1. Closest match

    1998

    Most alike in Growing-season mean temperature and Growing degree days.

    Growing-season mean temperature
    cooler: 0.3°C
    Growing degree days
    lower: 72 GDD

    Largest difference: Harvest precipitation — more rain

    View 1998 →

  2. Second closest

    2025

    Most alike in Harvest precipitation and Growing degree days.

    Harvest precipitation
    more rain: 18.5 mm
    Growing degree days
    higher: 89 GDD

    Largest difference: Spring frost exposure — fewer frost-exposure days

    View 2025 →

  3. Third closest

    2008

    Most alike in Harvest precipitation and Growing-season precipitation.

    Harvest precipitation
    less rain: 6.0 mm
    Growing-season precipitation
    less rain: 26.4 mm

    Largest difference: Hot-day count — fewer hot days

    View 2008 →
How similar years are calculated

Method analog-v1-2026-07 standardizes six weather measures across 34 complete ARCO ERA5 comparison years, then measures the distance between them. The calculation runs when the page is requested.

Measures used: Growing-season mean temperature (20%); Growing degree days (15%); Hot-day count (15%); Growing-season precipitation (20%); Harvest precipitation (20%); Spring frost exposure (10%).

Calculated distances: 1998 0.587; 2025 0.782; 2008 0.796.

Growing-season temperature anomalyCompared with 1991-2020
Temperature anomaly by vintage, 1991 to 2026 A line above zero indicates a warmer growing season than the 1991–2020 baseline. Select a point to inspect that vintage. +3.5°C −3.5°C 1991 2000 2010 2020 2026
Growing-season rainfall anomaly
Rainfall anomaly by vintage, 1991 to 2026 Bars show millimeters above or below the 1991–2020 growing-season baseline. Select a bar to inspect that vintage. +420 mm −420 mm 1991 2000 2010 2020 2026
View historical chart data as a table
YearTemperature anomalyRainfall anomalyHot days
1991-0.9°C-122 mm2
1992-0.3°C+27 mm7
1993-0.8°C+75 mm0
1994-0.2°C+107 mm4
1995-0.4°C+42 mm2
1996-1.4°C-44 mm0
1997-0.6°C-44 mm0
1998-0.4°C+81 mm6
1999+0.1°C+124 mm0
2000+0.0°C+41 mm0
2001-0.2°C+72 mm2
2002-0.6°C+76 mm2
2003+1.1°C-98 mm18
2004-0.2°C-0 mm0
2005+0.3°C-46 mm6
2006+0.8°C+96 mm10
2007-0.1°C+46 mm1
2008-0.6°C+100 mm1
2009+0.5°C-140 mm3
2010-0.8°C-5 mm8
2011+0.4°C-120 mm5
2012-0.1°C+79 mm7
2013-0.1°C+126 mm9
2014+0.3°C+38 mm4
2015+0.5°C-131 mm18
2016-0.1°C+67 mm5
2017+0.5°C-114 mm9
2018+1.8°C-185 mm10
2019+0.5°C-30 mm11
2020+0.9°C-119 mm12
2021-0.6°C+76 mm2
2022+1.7°C-55 mm12
2023+1.6°C-80 mm10
2024+0.7°C+189 mm5
2025+0.5°C+77 mm14
2026+3.2°C-414 mm32

winter

1.9°C

-1.0°C vs baseline

293 mm rain · +46 mm

spring

8.6°C

-2.0°C vs baseline

341 mm rain · +79 mm

summer

19.3°C

+0.0°C vs baseline

243 mm rain · -29 mm

harvest

14.4°C

+0.9°C vs baseline

237 mm rain · +63 mm

Weather events

Periods that crossed one of the published regional thresholds, shown in date order.

  1. Spring frost exposure

    Minimum temperature
    -3.8°C
    Duration
    5 days
    Severe-freeze days
    3 days

    The regional model recorded freezing temperatures during spring.

  2. Spring frost exposure

    Minimum temperature
    -5.6°C
    Duration
    4 days
    Severe-freeze days
    4 days

    The regional model recorded freezing temperatures during spring.

  3. Spring frost exposure

    Minimum temperature
    -1.4°C
    Duration
    5 days
    Severe-freeze days
    0 days

    The regional model recorded freezing temperatures during spring.

  4. Spring frost exposure

    Minimum temperature
    -1.5°C
    Duration
    2 days
    Severe-freeze days
    0 days

    The regional model recorded freezing temperatures during spring.

  5. Spring frost exposure

    Minimum temperature
    -0.1°C
    Duration
    1 day
    Severe-freeze days
    0 days

    The regional model recorded freezing temperatures during spring.

  6. Heat episode

    Peak temperature
    33.1°C
    Duration
    3 days
    Heat accumulation
    47 GDD

  7. Heat episode

    Peak temperature
    35.9°C
    Duration
    2 days
    Heat accumulation
    33 GDD

  8. Heat episode

    Peak temperature
    34.2°C
    Duration
    2 days
    Heat accumulation
    30 GDD

  9. Concentrated harvest rain

    Total rain
    39.7 mm
    Highest 3-day total
    36.8 mm
    Trigger threshold
    29.8 mm

    A large share of the season's rain fell during the harvest period.

  10. Concentrated harvest rain

    Total rain
    35.5 mm
    Highest 3-day total
    35.4 mm
    Trigger threshold
    29.8 mm

    A large share of the season's rain fell during the harvest period.

How events are detected

Weather & Vines combined regional series; method event-timeline-v2-2026-07, rules alsace-catalog-v1-2026-07. Source last updated Aug 1, 2026, calculated Aug 29, 2026. Each configured point must have at least 95.0% coverage.

1991–present

Climate change

Measured regional trends are shown separately from model projections. The observed record ends at the latest complete growing season shared by every published region.

Compare regions

Observed record

Historical trends, 1991–2025

Growing degree days changed +84.5 GDD per decade. The 95% interval is +58.5 to +110.4 GDD per decade, based on 35 eligible vintages.

How it is measured: Across the April 1–October 31 growing season, each day's mean temperature above 10°C adds to the total; cooler days add zero.

Growing degree days · annual change from the 1991–2020 average1991–2025

Scroll horizontally to inspect the full timeline.

View annual growing degree days data
VintageGrowing degree daysChange from 1991–2020
19911174 GDD-117 GDD
19921269 GDD-23 GDD
19931138 GDD-154 GDD
19941296 GDD+4 GDD
19951193 GDD-98 GDD
1996983 GDD-309 GDD
19971224 GDD-68 GDD
19981194 GDD-97 GDD
19991300 GDD+8 GDD
20001258 GDD-34 GDD
20011247 GDD-44 GDD
20021157 GDD-135 GDD
20031599 GDD+307 GDD
20041228 GDD-63 GDD
20051307 GDD+15 GDD
20061448 GDD+156 GDD
20071255 GDD-37 GDD
20081186 GDD-106 GDD
20091381 GDD+89 GDD
20101154 GDD-137 GDD
20111344 GDD+52 GDD
20121290 GDD-1 GDD
20131266 GDD-25 GDD
20141302 GDD+10 GDD
20151390 GDD+98 GDD
20161282 GDD-10 GDD
20171394 GDD+102 GDD
20181640 GDD+349 GDD
20191402 GDD+110 GDD
20201450 GDD+158 GDD
20211185 GDD-106 GDD
20221636 GDD+345 GDD
20231604 GDD+312 GDD
20241410 GDD+118 GDD
20251355 GDD+63 GDD
Growing-season mean temperature
+0.47 °C per decade 95% interval +0.36 to +0.58
Growing degree days
+84.48 GDD per decade 95% interval +58.54 to +110.43
Growing-season precipitation
-12.13 mm per decade 95% interval -44.38 to +20.12
Hot days
+2.69 days per decade 95% interval +1.80 to +3.58
Spring frost days
+0.59 days per decade 95% interval -1.17 to +2.36
Longest dry spell
+0.71 days per decade 95% interval -0.35 to +1.77

Last Updated August 20, 2026

Model ensemble

Projected climate through 2075

Temperature changes are relative to each model’s 1991–2020 baseline. The table combines all three pathways, weighted 70% to SSP2-4.5 and 15% each to SSP1-2.6 and SSP3-7.0.

Scroll horizontally to compare all columns.

PeriodWeighted medianWeighted central 80%Models per pathway
2021-2040+1.0°C+0.6 to +1.6°C25
2041-2060+1.6°C+1.0 to +2.6°C25
2061-2075+2.0°C+1.5 to +3.4°C25
How pathways are combined

For each period and percentile, Weather & Vines takes 70% of the SSP2-4.5 value, 15% of the SSP1-2.6 value, and 15% of the SSP3-7.0 value. Each pathway contains the same 25 models. The weights are an editorial view of the current trajectory, not scenario probabilities.

Last Updated June 29, 2025

Compare projection measures across regions

Typical year · 1991–2020

When to visit

This calendar describes typical regional weather under the selected climate baseline. It is not a forecast for a future trip, and it does not account for crowds, lodging, events, or vineyard access.

Deterministic IFS forecast

Next ten days

Detailed forecast outlook

ECMWF IFS 0.25° via Herbie · model run Aug 30, 2026 at 00:00 UTC · retrieved Aug 30, 2026 at 08:22 UTC

Scroll horizontally to see all forecast dates.

DateSunMonTueWedThuFriSatSunMonTue
High 26°C 23°C 24°C 24°C 26°C 28°C 30°C 30°C 27°C 23°C
Low 17°C 16°C 14°C 13°C 12°C 14°C 17°C 17°C 19°C 16°C
Rain 4.4 mm 3.3 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 1.2 mm 1.7 mm 0.0 mm

Across the typical year: Late July has the warmest median afternoon high (26.2°C); Late January has the coolest (4.2°C). Wet days are most frequent in Early June (61%) and least frequent in Early September (40%). Ties are resolved by calendar order.

Typical afternoon highs and overnight lowsMedians and middle 50% of daily readings

Afternoon highOvernight lowMiddle 50%

Scroll horizontally to inspect all 24 half-month periods.

Typical afternoon highs and overnight lows for Alsace & Jura Median daily maximum and minimum temperatures for 24 early and late-month periods under the 1991–2020 baseline. Neutral bands show the 25th to 75th percentile. -5°C5°C15°C25°C JanFebMarAprMayJunJulAugSepOctNovDec
How often a day is wetShare of days with at least 1 mm of rain

Scroll horizontally to inspect all 24 half-month periods.

Wet-day frequency through the typical year for Alsace & Jura The fraction of days receiving at least one millimeter of rain in each early and late-month period under the 1991–2020 baseline. 0%25%50%75%100% JanFebMarAprMayJunJulAugSepOctNovDec
View all 24 periods as a table

Scroll horizontally to view all columns.

Alsace & Jura typical weather by half-month, 1991–2020
PeriodAfternoon high, median (middle 50%)Overnight low, median (middle 50%)Wet-day frequencyPeriod rain, median (middle 50%)
Jan 1–156.0°C (1.6–8.8°C)0.5°C (-2.9–3.4°C)48%45.4 mm (18.5–49.7 mm)
Jan 16–314.2°C (1.8–7.8°C)-0.9°C (-3.3–2.0°C)44%37.2 mm (26.8–48.8 mm)
Feb 1–156.0°C (2.7–9.6°C)-0.3°C (-3.0–2.2°C)48%38.9 mm (23.7–54.8 mm)
Feb 16–297.8°C (4.1–10.9°C)0.3°C (-2.1–2.7°C)41%30.2 mm (15.6–38.2 mm)
Mar 1–1510.3°C (7.3–13.3°C)1.8°C (-0.6–4.4°C)43%31.2 mm (17.4–53.2 mm)
Mar 16–3112.2°C (9.1–15.9°C)3.0°C (0.6–5.6°C)46%34.0 mm (20.8–46.1 mm)
Apr 1–1514.1°C (10.8–18.1°C)4.6°C (2.2–6.5°C)46%33.5 mm (12.3–57.5 mm)
Apr 16–3017.0°C (13.3–20.7°C)7.0°C (4.2–8.9°C)52%36.6 mm (22.4–53.2 mm)
May 1–1518.3°C (14.9–21.7°C)9.0°C (6.8–10.8°C)59%52.1 mm (43.2–64.9 mm)
May 16–3120.5°C (17.4–24.1°C)10.3°C (8.2–12.3°C)49%45.5 mm (33.1–71.6 mm)
Jun 1–1521.8°C (18.6–25.8°C)12.3°C (10.6–14.3°C)61%54.1 mm (46.4–72.9 mm)
Jun 16–3024.2°C (21.1–27.5°C)13.6°C (11.2–15.7°C)47%33.8 mm (23.1–47.4 mm)
Jul 1–1524.6°C (21.2–27.9°C)14.3°C (12.4–16.0°C)52%47.8 mm (29.2–67.9 mm)
Jul 16–3126.2°C (22.8–29.1°C)15.2°C (13.1–16.8°C)46%42.9 mm (27.3–51.1 mm)
Aug 1–1525.4°C (22.4–28.8°C)14.8°C (12.9–16.9°C)49%38.6 mm (28.7–61.1 mm)
Aug 16–3124.6°C (21.2–28.1°C)13.9°C (11.9–15.8°C)44%40.2 mm (31.4–49.4 mm)
Sep 1–1521.3°C (18.6–24.6°C)11.9°C (9.5–13.7°C)40%36.3 mm (15.0–55.6 mm)
Sep 16–3019.3°C (16.5–22.5°C)9.6°C (7.6–11.9°C)42%39.0 mm (25.3–56.1 mm)
Oct 1–1516.4°C (14.0–19.2°C)8.9°C (6.7–10.5°C)49%38.8 mm (30.3–65.3 mm)
Oct 16–3114.0°C (10.8–17.1°C)6.3°C (3.6–8.7°C)42%37.1 mm (27.3–59.0 mm)
Nov 1–1510.9°C (8.3–13.1°C)4.5°C (2.1–6.6°C)52%50.8 mm (23.5–75.9 mm)
Nov 16–307.5°C (4.4–10.1°C)1.7°C (-0.5–4.7°C)45%40.8 mm (24.4–51.2 mm)
Dec 1–155.8°C (2.9–9.3°C)0.6°C (-2.0–3.7°C)50%42.6 mm (18.5–55.2 mm)
Dec 16–315.4°C (2.2–8.9°C)0.1°C (-2.3–3.2°C)50%56.0 mm (28.1–70.7 mm)

Each year contributes to temperature or rain separately when at least 90% of that period’s days are present. A value is shown only when at least 80% of the baseline years qualify. February 29 is included in late February.

Historical climatology Last Updated August 20, 2026

Season to date

Growing season heat and rainfall

Apr 1–Aug 30, 2026

Growing degree days1317.0base 10°C
Growing-season rainfall220.0 mmweighted regional total
Cumulative growing degree daysBase 10°C

2026 season1991–2020 average

Growing degree days accumulated during the 2026 growing season The solid line accumulates daily mean temperature above 10 degrees Celsius from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 1317 GDD 0 Apr ’26MayJunJulAug
Cumulative growing-season rainfallRegional weighted mean

2026 season1991–2020 average

Rainfall accumulated during the 2026 growing season The solid line accumulates daily rainfall in millimeters from the configured growing-season start. The dashed line shows the 1991–2020 daily climatological average. 436 mm 0 Apr ’26MayJunJulAug
View growing-season accumulation data
DateSeason GDD1991–2020 average GDDSeason rainfall1991–2020 average rainfall
2026-04-010.00.90.6 mm1.7 mm
2026-04-020.02.00.6 mm3.6 mm
2026-04-030.03.71.2 mm6.7 mm
2026-04-042.84.51.5 mm10.4 mm
2026-04-057.05.02.4 mm13.5 mm
2026-04-069.66.02.5 mm15.4 mm
2026-04-0712.77.12.5 mm18.7 mm
2026-04-0816.98.02.5 mm20.4 mm
2026-04-0920.68.93.0 mm23.5 mm
2026-04-1022.810.23.6 mm26.8 mm
2026-04-1126.711.39.9 mm29.9 mm
2026-04-1226.712.523.1 mm32.1 mm
2026-04-1326.713.731.8 mm34.4 mm
2026-04-1426.715.132.0 mm35.5 mm
2026-04-1526.716.432.0 mm38.7 mm
2026-04-1629.417.932.2 mm42.0 mm
2026-04-1733.019.232.2 mm45.3 mm
2026-04-1837.520.732.2 mm47.6 mm
2026-04-1940.621.933.0 mm49.3 mm
2026-04-2040.723.833.2 mm50.7 mm
2026-04-2140.726.433.2 mm52.5 mm
2026-04-2241.629.633.2 mm53.9 mm
2026-04-2343.232.533.2 mm56.3 mm
2026-04-2445.635.633.2 mm58.0 mm
2026-04-2548.739.133.2 mm61.2 mm
2026-04-2652.242.533.2 mm65.2 mm
2026-04-2755.745.333.2 mm69.9 mm
2026-04-2859.248.334.5 mm72.3 mm
2026-04-2964.951.434.9 mm75.1 mm
2026-04-3068.954.235.2 mm78.9 mm
2026-05-0173.056.835.3 mm84.5 mm
2026-05-0279.959.835.5 mm88.7 mm
2026-05-0386.962.835.9 mm91.8 mm
2026-05-0490.666.140.2 mm94.8 mm
2026-05-0593.969.249.3 mm97.5 mm
2026-05-0695.772.664.9 mm100.2 mm
2026-05-0797.976.466.8 mm102.3 mm
2026-05-08100.880.868.0 mm107.0 mm
2026-05-09106.385.368.6 mm110.7 mm
2026-05-10111.290.272.4 mm113.1 mm
2026-05-11112.895.188.2 mm117.8 mm
2026-05-12112.899.389.6 mm122.2 mm
2026-05-13112.8103.594.1 mm127.1 mm
2026-05-14112.8107.5100.2 mm130.9 mm
2026-05-15112.8111.0104.5 mm133.6 mm
2026-05-16112.8115.0106.2 mm137.0 mm
2026-05-17113.3119.7106.4 mm140.5 mm
2026-05-18115.2124.3110.4 mm145.2 mm
2026-05-19117.2128.5111.8 mm149.0 mm
2026-05-20123.3133.0112.6 mm151.8 mm
2026-05-21130.1137.9112.6 mm155.2 mm
2026-05-22138.6143.1112.6 mm157.7 mm
2026-05-23149.0148.1112.6 mm160.6 mm
2026-05-24161.0154.2112.6 mm162.3 mm
2026-05-25173.9160.7112.6 mm164.1 mm
2026-05-26187.0167.3112.7 mm166.6 mm
2026-05-27200.1173.8112.7 mm169.5 mm
2026-05-28212.1180.2112.7 mm173.0 mm
2026-05-29224.1186.4112.7 mm176.1 mm
2026-05-30236.4192.7112.8 mm180.3 mm
2026-05-31247.3198.9118.5 mm186.3 mm
2026-06-01256.8205.1118.6 mm189.4 mm
2026-06-02265.1212.2132.4 mm193.2 mm
2026-06-03271.3219.2134.4 mm197.5 mm
2026-06-04277.7226.2138.4 mm200.7 mm
2026-06-05283.0233.2139.1 mm204.3 mm
2026-06-06289.3240.1139.2 mm209.2 mm
2026-06-07296.9247.6139.3 mm213.1 mm
2026-06-08305.0255.0142.6 mm217.7 mm
2026-06-09311.1262.6143.8 mm221.3 mm
2026-06-10314.5270.4148.0 mm225.0 mm
2026-06-11318.4277.8148.9 mm229.1 mm
2026-06-12325.7285.2149.4 mm232.6 mm
2026-06-13336.9292.6149.5 mm235.7 mm
2026-06-14346.5300.1149.5 mm238.8 mm
2026-06-15354.0308.3149.5 mm242.6 mm
2026-06-16364.8316.3150.1 mm245.5 mm
2026-06-17377.7324.4150.1 mm248.7 mm
2026-06-18392.6333.1150.3 mm250.5 mm
2026-06-19408.9341.6152.1 mm252.6 mm
2026-06-20425.3350.1152.2 mm255.9 mm
2026-06-21442.1359.0152.6 mm259.4 mm
2026-06-22459.2367.5152.6 mm262.0 mm
2026-06-23476.5376.1152.7 mm264.0 mm
2026-06-24494.1384.8152.7 mm266.4 mm
2026-06-25511.7393.8153.4 mm268.8 mm
2026-06-26531.0402.9153.8 mm271.0 mm
2026-06-27550.9412.7154.4 mm273.9 mm
2026-06-28569.6422.2159.8 mm275.9 mm
2026-06-29583.9431.8165.6 mm279.1 mm
2026-06-30598.5441.7167.6 mm280.9 mm
2026-07-01610.9451.5170.2 mm283.6 mm
2026-07-02621.5461.5170.2 mm286.4 mm
2026-07-03633.5471.3170.3 mm290.5 mm
2026-07-04644.3481.3170.3 mm293.2 mm
2026-07-05655.9491.3170.4 mm297.3 mm
2026-07-06668.7500.6170.4 mm301.1 mm
2026-07-07682.9509.8170.4 mm305.3 mm
2026-07-08696.3518.5170.4 mm308.2 mm
2026-07-09710.2527.6170.4 mm310.3 mm
2026-07-10725.3536.7170.4 mm314.3 mm
2026-07-11741.4545.9170.6 mm317.1 mm
2026-07-12756.9555.3170.6 mm320.0 mm
2026-07-13772.3564.7171.6 mm324.1 mm
2026-07-14789.4574.1172.2 mm328.3 mm
2026-07-15804.3583.5174.5 mm330.7 mm
2026-07-16819.3593.5179.1 mm332.7 mm
2026-07-17832.9603.6186.2 mm335.5 mm
2026-07-18844.5613.9188.5 mm337.7 mm
2026-07-19854.6624.6188.8 mm339.8 mm
2026-07-20862.9635.4188.8 mm342.3 mm
2026-07-21871.3646.1188.8 mm345.6 mm
2026-07-22880.3656.4188.8 mm348.7 mm
2026-07-23889.9666.7188.8 mm351.2 mm
2026-07-24899.9677.0188.8 mm353.5 mm
2026-07-25912.1687.4189.9 mm355.3 mm
2026-07-26925.3698.1190.7 mm357.5 mm
2026-07-27938.1709.3191.9 mm360.6 mm
2026-07-28950.6720.0191.9 mm364.2 mm
2026-07-29967.6730.4192.0 mm367.6 mm
2026-07-30985.1741.3192.5 mm369.7 mm
2026-07-311000.4751.7196.0 mm371.4 mm
2026-08-011014.5762.2197.5 mm373.7 mm
2026-08-021029.5773.0197.5 mm376.9 mm
2026-08-031047.6783.9199.0 mm379.0 mm
2026-08-041064.9794.5200.4 mm381.6 mm
2026-08-051080.6805.5201.1 mm384.2 mm
2026-08-061094.1816.5201.1 mm388.0 mm
2026-08-071106.0827.4201.1 mm391.8 mm
2026-08-081119.3837.9201.1 mm395.3 mm
2026-08-091133.2848.3201.4 mm398.3 mm
2026-08-101148.1857.9202.1 mm402.1 mm
2026-08-111163.0867.4202.2 mm405.2 mm
2026-08-121178.7877.3202.2 mm408.2 mm
2026-08-131195.2886.9202.2 mm410.9 mm
2026-08-141212.1896.0202.3 mm414.1 mm
2026-08-151229.3905.7202.4 mm416.8 mm
2026-08-161244.1915.2204.7 mm419.4 mm
2026-08-171255.9925.3208.7 mm421.9 mm
2026-08-181268.6935.8208.9 mm424.1 mm
2026-08-191283.8946.2209.2 mm426.3 mm
2026-08-201295.4956.2211.2 mm428.2 mm
2026-08-211302.5965.7219.5 mm430.9 mm
2026-08-221309.3975.3220.0 mm433.1 mm
2026-08-231317.0985.2220.0 mm435.9 mm

Forecast outlook

ECMWF IFS 0.25° via Herbie · run Aug 30, 2026 at 00:00 UTC

10-day totals compared with the 1991–2020 combined regional record

GDD accumulation
103 GDDvs 70 GDD average
Total rainfall
10.5 mmvs 26.4 mm average

No unusually hot or wet period stands out in the short-range forecast.

Sun8/30 26°Cavg 23°C 17°Cavg 12°C +10 GDD 4.4 mm
Mon8/31 23°Cavg 22°C 16°Cavg 12°C +9 GDD 3.3 mm
Tue9/1 24°Cavg 22°C 14°Cavg 12°C +8 GDD 0.0 mm
Wed9/2 24°Cavg 22°C 13°Cavg 12°C +8 GDD 0.0 mm
Thu9/3 26°Cavg 22°C 12°Cavg 12°C +9 GDD 0.0 mm
Fri9/4 28°Cavg 22°C 14°Cavg 12°C +11 GDD 0.0 mm
Sat9/5 30°Cavg 22°C 17°Cavg 12°C +12 GDD 0.0 mm
Sun9/6 30°Cavg 22°C 17°Cavg 12°C +13 GDD 1.2 mm
Mon9/7 27°Cavg 22°C 19°Cavg 12°C +13 GDD 1.7 mm
Tue9/8 23°Cavg 22°C 16°Cavg 11°C +9 GDD 0.0 mm

Data and methods

Show data sources and model assumptions

Current model conditions and the 10-day outlook use the 00 UTC deterministic ECMWF IFS 0.25° public forecast retrieved directly with Herbie. Historical temperature and rain combine qualifying GHCN-D stations with ERA5 by geographic area; a missing station day uses the nearest ERA5 value for that station's area. Climate comparisons use 1991–2020.

Forecast comparisons use the 1991–2020 combined regional daily record. Daily high and low averages use the matching date; rainfall and GDD sum the same calendar dates as the forecast period.

This service is based on data and products of the European Centre for Medium-Range Weather Forecasts (ECMWF). Weather & Vines subsets, converts, and regionally weights the forecast fields. ECMWF data are published under CC BY 4.0. ECMWF accepts no liability for errors, omissions, availability, loss, or damage arising from their use.

Climate projections use NASA NEX-GDDP-CMIP6 v2.0, accessed August 23, 2026, with 25 models. Weather & Vines subsets and aggregates the source fields. Source files and derived projection data are under CC BY-SA 4.0; the full roster and limitations are listed in the climate atlas methods.

The Alsace & Jura model uses a April 1–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 32°C.

The historical series uses 2 ERA5 locations, 13 temperature stations, and 18 rain stations. Interpretation confidence: high. Geometry confidence: reviewed-approximate. Rules: alsace-catalog-v1-2026-07.