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France · Detailed regional profile

Bordeaux

An Atlantic wine region known for Cabernet- and Merlot-led blends as well as dry and sweet white wines.

The Atlantic keeps temperatures moderate, but rain and humidity can raise disease pressure and complicate harvest.

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

Wine grapes growing in a summer vineyard near Bordeaux, France
Edouard CHASSAIGNE / Pexels

Current conditions

Observations through Aug 30, 2026 · 06:00 UTC

Temperature18.8°C
Dew Point18.3°C
Relative Humidity97%
24h Rainfall0.8 mmmodeled IFS total through Aug 29

Vintage explorer

Compare this vintage →

Moderately warmer and slightly drier than normal.

Mean temperature19.1°C
Temperature anomaly+1.1°Cvs 1991-2020
Growing degree days1981base 10°C
Hot days12≥ 35°C

What stood out in 2003

Warm weather can speed ripening and leave grapes with less acidity. Repeated hot days can speed ripening and put vines under stress.

Warmer growing season · High confidence

Mean growing-season temperature was +1.1°C versus the 1991–2020 baseline.

Warm weather can speed ripening and leave grapes with less acidity.

More hot days than usual · High confidence

There were 12 days at or above 35°C—+10 days versus baseline.

Repeated hot days can speed ripening and put vines under stress.

How unusual was 2003?

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

Growing-season temperature

3rd warmest of 35 vintages Warmer than 32 of 34 other vintages 19.1°C

Growing-season rainfall

17th wettest of 35 vintages Wetter than 18 of 34 other vintages 451.4 mm

Heat accumulation

3rd highest of 35 vintages Higher than 32 of 34 other vintages 1982 GDD

Hot days

2nd most of 35 vintages More than 33 of 34 other vintages 12 days

2003 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

    2003 0 GDD
    Typical 45 GDD

    Rainfall

    2003 40.7 mm
    Typical 57.1 mm
    2003 freezing days
    0
    Typical
    1.4

    Heat accumulation ran behind the typical month.

  2. 1–30
    Frost watchGrowing season

    Heat accumulation

    2003 136 GDD
    Typical 92 GDD

    Rainfall

    2003 47.3 mm
    Typical 73.1 mm
    2003 freezing days
    0
    Typical
    0.1

    Heat accumulation ran ahead of the typical month.

  3. 1–31
    Frost watchGrowing season

    Heat accumulation

    2003 193 GDD
    Typical 198 GDD

    Rainfall

    2003 59.2 mm
    Typical 77.1 mm
    2003 freezing days
    0
    Typical
    0.0

    Close to the typical monthly pattern.

  4. 1–30
    Growing season

    Heat accumulation

    2003 386 GDD
    Typical 288 GDD

    Rainfall

    2003 82.1 mm
    Typical 66.1 mm

    Heat accumulation ran ahead of the typical month.

  5. 1–31
    Growing season

    Heat accumulation

    2003 373 GDD
    Typical 357 GDD

    Rainfall

    2003 60.9 mm
    Typical 49.6 mm

    Close to the typical monthly pattern.

  6. 1–31
    Growing seasonHarvest window

    Heat accumulation

    2003 483 GDD
    Typical 363 GDD

    Rainfall

    2003 38.9 mm
    Typical 56.0 mm

    Heat accumulation ran ahead of the typical month.

  7. 1–30
    Growing seasonHarvest window

    Heat accumulation

    2003 285 GDD
    Typical 259 GDD

    Rainfall

    2003 37.8 mm
    Typical 61.4 mm

    Drier than the typical month.

  8. 1–31
    Growing seasonHarvest window

    Heat accumulation

    2003 127 GDD
    Typical 162 GDD

    Rainfall

    2003 125.1 mm
    Typical 72.2 mm

    Heat accumulation ran behind the typical month.

View milestone calendar data as a table
Month2003 GDDTypical GDD2003 rainfallTypical rainfall2003 freezing daysTypical freezing days
March 2003 0 GDD 45 GDD 40.7 mm 57.1 mm 01.4
April 2003 136 GDD 92 GDD 47.3 mm 73.1 mm 00.1
May 2003 193 GDD 198 GDD 59.2 mm 77.1 mm 00.0
June 2003 386 GDD 288 GDD 82.1 mm 66.1 mm Outside frost windowOutside frost window
July 2003 373 GDD 357 GDD 60.9 mm 49.6 mm Outside frost windowOutside frost window
August 2003 483 GDD 363 GDD 38.9 mm 56.0 mm Outside frost windowOutside frost window
September 2003 285 GDD 259 GDD 37.8 mm 61.4 mm Outside frost windowOutside frost window
October 2003 127 GDD 162 GDD 125.1 mm 72.2 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 2003 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 Jul 14, 2026.

Closest weather matches

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

  1. Closest match

    2025

    Most alike in Harvest precipitation and Growing-season mean temperature.

    Harvest precipitation
    less rain: 3.7 mm
    Growing-season mean temperature
    cooler: 0.4°C

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

    View 2025 →

  2. Second closest

    2019

    Most alike in Spring frost exposure and Growing-season precipitation.

    Spring frost exposure
    the same: 0 days
    Growing-season precipitation
    less rain: 23.8 mm

    Largest difference: Hot-day count — fewer hot days

    View 2019 →

  3. Third closest

    2022

    Most alike in Hot-day count and Growing-season precipitation.

    Hot-day count
    more hot days: 2 days
    Growing-season precipitation
    less rain: 58.6 mm

    Largest difference: Growing-season mean temperature — warmer

    View 2022 →
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: 2025 0.782; 2019 0.889; 2022 0.998.

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. +250 mm −250 mm 1991 2000 2010 2020 2026
View historical chart data as a table
YearTemperature anomalyRainfall anomalyHot days
1991-0.9°C-69 mm4
1992-1.0°C+168 mm0
1993-1.2°C+221 mm0
1994-0.4°C+88 mm1
1995+0.3°C-141 mm2
1996-0.7°C-55 mm1
1997+0.4°C+7 mm0
1998-0.5°C+14 mm7
1999+0.3°C+119 mm1
2000-0.2°C+72 mm0
2001-0.0°C-49 mm2
2002-0.7°C+11 mm0
2003+1.1°C-4 mm12
2004-0.0°C-42 mm0
2005+0.7°C-144 mm2
2006+1.0°C+19 mm3
2007-0.4°C-32 mm1
2008-0.9°C+104 mm0
2009+0.3°C-37 mm2
2010-0.3°C-86 mm2
2011+0.9°C-167 mm4
2012-0.2°C+89 mm3
2013-0.4°C+54 mm0
2014+0.3°C-46 mm1
2015+0.1°C-37 mm3
2016-0.2°C-112 mm7
2017+0.6°C-91 mm3
2018+1.0°C-18 mm4
2019+0.5°C-28 mm6
2020+0.6°C+191 mm4
2021-0.4°C+13 mm0
2022+2.1°C-63 mm14
2023+1.6°C+55 mm6
2024-0.3°C+200 mm2
2025+0.7°C-88 mm9
2026+3.3°C-244 mm20

winter

7.2°C

-0.1°C vs baseline

221 mm rain · +17 mm

spring

14.3°C

+1.1°C vs baseline

147 mm rain · -60 mm

summer

23.5°C

+2.5°C vs baseline

181 mm rain · +10 mm

harvest

19.4°C

+1.0°C vs baseline

201 mm rain · +12 mm

Weather events

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

  1. Heat episode

    Peak temperature
    37.5°C
    Duration
    2 days
    Heat accumulation
    37 GDD

  2. Heat episode

    Peak temperature
    39.6°C
    Duration
    3 days
    Heat accumulation
    59 GDD

  3. Heat episode

    Peak temperature
    37.8°C
    Duration
    4 days
    Heat accumulation
    79 GDD

  4. Heat episode

    Peak temperature
    37.5°C
    Duration
    2 days
    Heat accumulation
    39 GDD

  5. Concentrated harvest rain

    Total rain
    63.1 mm
    Highest 3-day total
    56.5 mm
    Trigger threshold
    24.0 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 bordeaux-v2-2026-07. Source last updated Jul 14, 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 +78.2 GDD per decade. The 95% interval is +43.5 to +112.9 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
19911566 GDD-152 GDD
19921506 GDD-212 GDD
19931465 GDD-254 GDD
19941644 GDD-74 GDD
19951773 GDD+55 GDD
19961570 GDD-149 GDD
19971809 GDD+90 GDD
19981613 GDD-105 GDD
19991779 GDD+61 GDD
20001677 GDD-41 GDD
20011716 GDD-3 GDD
20021565 GDD-153 GDD
20031982 GDD+263 GDD
20041716 GDD-3 GDD
20051858 GDD+140 GDD
20061923 GDD+205 GDD
20071636 GDD-83 GDD
20081514 GDD-205 GDD
20091769 GDD+51 GDD
20101642 GDD-77 GDD
20111909 GDD+190 GDD
20121686 GDD-32 GDD
20131642 GDD-76 GDD
20141767 GDD+48 GDD
20151730 GDD+12 GDD
20161669 GDD-49 GDD
20171835 GDD+117 GDD
20181932 GDD+213 GDD
20191825 GDD+107 GDD
20201835 GDD+117 GDD
20211631 GDD-88 GDD
20222178 GDD+459 GDD
20232059 GDD+341 GDD
20241646 GDD-73 GDD
20251856 GDD+138 GDD
Growing-season mean temperature
+0.39 °C per decade 95% interval +0.22 to +0.55
Growing degree days
+78.17 GDD per decade 95% interval +43.46 to +112.88
Growing-season precipitation
-9.11 mm per decade 95% interval -42.92 to +24.71
Hot days
+1.34 days per decade 95% interval +0.66 to +2.03
Spring frost days
-0.04 days per decade 95% interval -0.52 to +0.45
Longest dry spell
+1.73 days per decade 95% interval +0.10 to +3.36

Last Updated July 15, 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+0.9°C+0.5 to +1.5°C25
2041-2060+1.4°C+0.9 to +2.4°C25
2061-2075+1.9°C+1.3 to +2.9°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 25°C 25°C 25°C 28°C 29°C 33°C 34°C 34°C 27°C 24°C
Low 19°C 17°C 15°C 15°C 15°C 16°C 18°C 23°C 21°C 17°C
Rain 2.5 mm 0.4 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.1 mm 0.0 mm

Across the typical year: Late July has the warmest median afternoon high (27.2°C); Late January has the coolest (10.5°C). Wet days are most frequent in Early November (48%) and least frequent in Late July (26%). 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 Bordeaux 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. 0°C10°C20°C30°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 Bordeaux 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.

Bordeaux 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 1–1510.9°C (7.5–13.1°C)4.8°C (0.8–7.4°C)39%24.7 mm (13.7–49.8 mm)
Jan 16–3110.5°C (7.7–12.5°C)4.0°C (0.6–6.6°C)38%37.4 mm (15.4–60.5 mm)
Feb 1–1511.5°C (8.4–13.4°C)3.5°C (0.6–6.2°C)37%27.1 mm (14.9–38.2 mm)
Feb 16–2912.0°C (9.8–14.2°C)4.4°C (1.2–6.7°C)33%21.7 mm (7.7–36.6 mm)
Mar 1–1513.9°C (11.8–16.9°C)5.6°C (3.1–8.1°C)33%24.0 mm (8.1–45.0 mm)
Mar 16–3115.2°C (12.9–18.2°C)6.7°C (4.3–8.6°C)38%21.5 mm (15.5–38.7 mm)
Apr 1–1516.2°C (13.7–19.1°C)7.6°C (5.6–9.3°C)41%28.6 mm (14.7–50.8 mm)
Apr 16–3017.3°C (15.0–21.4°C)9.3°C (7.1–11.1°C)44%33.7 mm (17.7–53.7 mm)
May 1–1519.4°C (16.6–22.8°C)11.1°C (8.7–13.0°C)42%36.3 mm (28.3–42.3 mm)
May 16–3121.6°C (18.6–25.3°C)12.5°C (10.7–14.5°C)40%32.4 mm (17.8–56.0 mm)
Jun 1–1522.6°C (19.9–26.3°C)14.2°C (12.3–15.7°C)42%39.1 mm (25.8–49.9 mm)
Jun 16–3025.2°C (22.1–28.3°C)15.4°C (13.5–17.6°C)27%25.2 mm (13.2–40.2 mm)
Jul 1–1525.2°C (22.2–28.7°C)16.0°C (14.4–17.6°C)30%27.2 mm (15.4–39.0 mm)
Jul 16–3127.2°C (24.5–30.0°C)17.0°C (15.4–18.5°C)26%18.4 mm (11.8–34.7 mm)
Aug 1–1526.7°C (24.0–29.5°C)16.6°C (14.8–18.4°C)31%24.5 mm (11.1–33.5 mm)
Aug 16–3126.3°C (23.5–29.7°C)16.4°C (14.3–18.2°C)27%21.9 mm (10.3–39.8 mm)
Sep 1–1524.4°C (21.8–27.3°C)14.4°C (12.4–16.2°C)29%26.5 mm (8.4–37.7 mm)
Sep 16–3022.1°C (19.5–25.6°C)13.0°C (10.8–14.8°C)34%28.2 mm (12.8–59.2 mm)
Oct 1–1520.0°C (17.6–22.9°C)12.2°C (9.9–14.4°C)40%33.6 mm (22.2–40.9 mm)
Oct 16–3118.1°C (15.4–20.8°C)10.4°C (7.6–13.1°C)36%29.6 mm (17.6–53.9 mm)
Nov 1–1514.8°C (12.9–16.8°C)8.3°C (5.6–10.4°C)48%44.8 mm (22.1–75.4 mm)
Nov 16–3012.7°C (10.1–14.8°C)6.3°C (3.0–8.5°C)36%27.1 mm (14.7–46.7 mm)
Dec 1–1511.5°C (8.6–13.5°C)4.7°C (1.7–7.9°C)39%40.7 mm (16.9–55.0 mm)
Dec 16–3111.2°C (8.0–13.3°C)5.0°C (1.0–7.8°C)40%41.5 mm (16.2–55.8 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 July 15, 2026

Season to date

Growing season heat and rainfall

Apr 1–Aug 30, 2026

Growing degree days1634.6base 10°C
Growing-season rainfall213.5 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. 1635 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. 306 mm 0 Apr ’26MayJunJulAug
View growing-season accumulation data
DateSeason GDD1991–2020 average GDDSeason rainfall1991–2020 average rainfall
2026-04-012.22.31.0 mm2.0 mm
2026-04-023.25.01.6 mm3.5 mm
2026-04-033.27.32.0 mm7.0 mm
2026-04-048.08.92.0 mm9.4 mm
2026-04-0512.510.42.0 mm10.6 mm
2026-04-0621.312.92.0 mm13.3 mm
2026-04-0731.115.12.0 mm16.4 mm
2026-04-0839.117.62.0 mm18.2 mm
2026-04-0947.520.22.0 mm20.6 mm
2026-04-1054.622.62.1 mm23.3 mm
2026-04-1156.625.04.9 mm25.9 mm
2026-04-1256.627.35.1 mm27.9 mm
2026-04-1356.629.76.1 mm29.5 mm
2026-04-1457.632.66.1 mm31.4 mm
2026-04-1562.635.66.5 mm33.9 mm
2026-04-1667.838.86.5 mm35.6 mm
2026-04-1775.241.46.5 mm37.7 mm
2026-04-1881.844.56.6 mm40.3 mm
2026-04-1989.247.76.6 mm43.3 mm
2026-04-2098.651.26.6 mm45.0 mm
2026-04-21106.655.76.6 mm46.4 mm
2026-04-22116.060.07.4 mm49.0 mm
2026-04-23124.664.47.5 mm51.1 mm
2026-04-24132.968.67.5 mm53.6 mm
2026-04-25139.273.18.2 mm57.1 mm
2026-04-26147.577.18.4 mm59.7 mm
2026-04-27155.980.68.4 mm62.6 mm
2026-04-28163.784.29.2 mm66.2 mm
2026-04-29171.587.919.8 mm68.8 mm
2026-04-30178.591.831.0 mm73.1 mm
2026-05-01186.596.032.5 mm77.5 mm
2026-05-02193.1100.751.3 mm79.7 mm
2026-05-03200.1105.774.4 mm80.7 mm
2026-05-04205.4110.993.6 mm82.4 mm
2026-05-05209.0115.8103.0 mm85.6 mm
2026-05-06212.0120.8111.0 mm87.7 mm
2026-05-07216.6126.2111.3 mm90.2 mm
2026-05-08223.3131.8111.8 mm92.7 mm
2026-05-09231.7137.5111.9 mm96.4 mm
2026-05-10239.3143.9116.1 mm100.5 mm
2026-05-11244.5149.9117.1 mm104.4 mm
2026-05-12247.6155.5117.2 mm106.5 mm
2026-05-13252.2161.2117.8 mm109.4 mm
2026-05-14253.6166.5132.5 mm111.4 mm
2026-05-15254.9172.4136.4 mm112.7 mm
2026-05-16257.0178.9137.7 mm115.2 mm
2026-05-17261.5185.7142.8 mm117.7 mm
2026-05-18265.3191.6143.2 mm120.7 mm
2026-05-19271.3197.6145.3 mm123.1 mm
2026-05-20279.0204.0145.3 mm125.7 mm
2026-05-21289.5211.0145.3 mm128.3 mm
2026-05-22302.8218.1145.3 mm130.7 mm
2026-05-23315.8225.6145.3 mm132.3 mm
2026-05-24330.3233.1145.3 mm134.2 mm
2026-05-25346.1241.0145.3 mm136.4 mm
2026-05-26361.5248.6145.3 mm139.1 mm
2026-05-27377.6256.6145.3 mm141.0 mm
2026-05-28393.9264.8145.3 mm143.9 mm
2026-05-29408.9273.2145.3 mm145.6 mm
2026-05-30419.9281.7145.3 mm147.6 mm
2026-05-31430.9290.0145.4 mm150.1 mm
2026-06-01440.0298.6145.8 mm152.2 mm
2026-06-02448.4307.2148.6 mm154.1 mm
2026-06-03456.1315.2149.3 mm156.9 mm
2026-06-04462.9323.1150.1 mm160.5 mm
2026-06-05468.8331.1150.5 mm164.7 mm
2026-06-06475.4339.9150.7 mm167.1 mm
2026-06-07483.9348.8150.7 mm168.6 mm
2026-06-08492.6357.6154.7 mm171.8 mm
2026-06-09498.6366.7154.7 mm173.9 mm
2026-06-10503.3375.4155.1 mm178.4 mm
2026-06-11508.6383.9155.4 mm181.6 mm
2026-06-12516.9392.7155.4 mm183.4 mm
2026-06-13530.4401.8155.4 mm185.3 mm
2026-06-14545.8411.3155.4 mm186.4 mm
2026-06-15560.4420.7155.4 mm187.9 mm
2026-06-16572.5430.2155.4 mm191.2 mm
2026-06-17586.8440.2155.4 mm193.3 mm
2026-06-18604.3450.6156.4 mm195.6 mm
2026-06-19620.2460.7156.4 mm197.2 mm
2026-06-20635.9471.0156.7 mm199.1 mm
2026-06-21655.9481.3156.7 mm202.1 mm
2026-06-22677.5491.9156.8 mm204.0 mm
2026-06-23699.0502.0156.8 mm205.1 mm
2026-06-24721.4512.6156.8 mm206.5 mm
2026-06-25742.8523.1157.8 mm208.5 mm
2026-06-26760.4534.3157.8 mm209.8 mm
2026-06-27778.4545.6158.1 mm211.0 mm
2026-06-28792.5556.8174.4 mm211.9 mm
2026-06-29806.4567.3174.5 mm214.2 mm
2026-06-30818.1578.3174.5 mm216.2 mm
2026-07-01828.9589.3174.5 mm218.0 mm
2026-07-02840.0600.1174.5 mm221.3 mm
2026-07-03853.5610.8174.9 mm222.8 mm
2026-07-04867.7621.5174.9 mm225.9 mm
2026-07-05883.1631.7174.9 mm228.9 mm
2026-07-06901.1641.8174.9 mm230.9 mm
2026-07-07919.8652.1174.9 mm232.6 mm
2026-07-08936.8663.0174.9 mm233.6 mm
2026-07-09955.2673.9174.9 mm235.2 mm
2026-07-10973.7684.8176.0 mm236.7 mm
2026-07-11992.6695.7176.1 mm237.9 mm
2026-07-121013.2706.6176.1 mm238.9 mm
2026-07-131029.2717.7176.8 mm240.2 mm
2026-07-141046.4728.9176.8 mm241.3 mm
2026-07-151063.4740.6182.1 mm242.5 mm
2026-07-161079.3752.7183.0 mm243.5 mm
2026-07-171094.1764.9183.9 mm244.4 mm
2026-07-181108.4777.0183.9 mm245.8 mm
2026-07-191123.6789.6183.9 mm247.4 mm
2026-07-201138.4801.7183.9 mm249.4 mm
2026-07-211152.6813.8183.9 mm250.9 mm
2026-07-221167.2826.0183.9 mm251.7 mm
2026-07-231182.4838.4183.9 mm253.9 mm
2026-07-241198.3850.5184.3 mm254.5 mm
2026-07-251211.3862.6186.1 mm255.9 mm
2026-07-261223.0875.1186.6 mm257.6 mm
2026-07-271235.4887.5187.3 mm260.6 mm
2026-07-281250.3899.4187.3 mm261.9 mm
2026-07-291268.2911.3187.3 mm262.6 mm
2026-07-301283.4923.5187.7 mm264.6 mm
2026-07-311295.6935.4192.3 mm265.8 mm
2026-08-011308.3947.3192.3 mm268.1 mm
2026-08-021324.4959.0192.3 mm270.1 mm
2026-08-031337.8971.1197.3 mm271.0 mm
2026-08-041351.8983.2197.3 mm273.0 mm
2026-08-051365.1995.4197.3 mm274.5 mm
2026-08-061378.01007.4197.3 mm276.4 mm
2026-08-071392.21019.6197.3 mm278.3 mm
2026-08-081409.11032.0197.3 mm280.8 mm
2026-08-091426.51043.6206.6 mm284.1 mm
2026-08-101442.61055.3208.1 mm285.1 mm
2026-08-111459.71067.0208.1 mm287.4 mm
2026-08-121478.51078.6208.1 mm289.5 mm
2026-08-131498.21090.1208.1 mm291.8 mm
2026-08-141516.11101.7208.4 mm293.0 mm
2026-08-151532.91113.7208.5 mm294.3 mm
2026-08-161547.91125.4209.4 mm295.5 mm
2026-08-171562.11137.3209.5 mm296.5 mm
2026-08-181576.21149.2209.5 mm297.5 mm
2026-08-191588.11161.3209.6 mm298.7 mm
2026-08-201599.71173.0210.2 mm302.4 mm
2026-08-211610.51184.9211.2 mm303.4 mm
2026-08-221620.61197.1211.2 mm304.5 mm
2026-08-231634.61209.2213.5 mm306.0 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
126 GDDvs 99 GDD average
Total rainfall
3.1 mmvs 13.1 mm average

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

Sun8/30 25°Cavg 26°C 19°Cavg 15°C +11 GDD 2.5 mm
Mon8/31 25°Cavg 26°C 17°Cavg 15°C +10 GDD 0.4 mm
Tue9/1 25°Cavg 25°C 15°Cavg 14°C +10 GDD 0.0 mm
Wed9/2 28°Cavg 26°C 15°Cavg 14°C +11 GDD 0.0 mm
Thu9/3 29°Cavg 26°C 15°Cavg 14°C +12 GDD 0.0 mm
Fri9/4 33°Cavg 25°C 16°Cavg 15°C +14 GDD 0.0 mm
Sat9/5 34°Cavg 25°C 18°Cavg 15°C +16 GDD 0.0 mm
Sun9/6 34°Cavg 25°C 23°Cavg 15°C +17 GDD 0.0 mm
Mon9/7 27°Cavg 25°C 21°Cavg 15°C +13 GDD 0.1 mm
Tue9/8 24°Cavg 25°C 17°Cavg 14°C +11 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 Bordeaux model uses a April 1–October 31 growing season, base 10°C GDD, and an operational hot-day marker of 35°C.