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Austria · Multi-region weather view

Wachau

Danube vineyards from Spitz through Weißenkirchen and Dürnstein to the western edge of Krems.

A narrow river valley and steep slopes create sharp day–night temperature shifts. Spring frost, summer heat and rain during the long autumn harvest are the main weather signals.

Climate comparisons use the 1991–2020 combined regional record · updated through Sep 13, 2026.

Current conditions

Observations through Sep 21, 2026 · 03:00 UTC

Temperature11.2°C
Dew Point9.6°C
Relative Humidity90%
24h Rainfall1.3 mmmodeled IFS total through Sep 20

Vintage explorer

Compare this vintage · View 1999 across regions →

Moderately cooler and moderately wetter than normal.

Mean temperature13.8°C
Temperature anomaly-0.2°Cvs 1991-2020
Growing degree days1056base 10°C
Hot days0≥ 32°C

What stood out in 1999

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

Spring freeze recorded · Moderate confidence

The regional record had 5 spring day(s) at or below -2°C.

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

How unusual was 1999?

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

Growing-season temperature

12th coolest of 35 vintages Cooler than 23 of 34 other vintages 13.8°C

Growing-season rainfall

12th wettest of 35 vintages Wetter than 23 of 34 other vintages 647.8 mm

Heat accumulation

11th lowest of 35 vintages Lower than 24 of 34 other vintages 1056 GDD

Hot days

Fewest of 35 vintages Fewer than 24 of 34 other vintages 0 days

1999 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

    1999 0 GDD
    Typical 4 GDD

    Rainfall

    1999 35.6 mm
    Typical 55.9 mm
    1999 freezing days
    11
    Typical
    13.1

    Drier than the typical month.

  2. 1–30
    Frost watchGrowing season

    Heat accumulation

    1999 27 GDD
    Typical 41 GDD

    Rainfall

    1999 77.4 mm
    Typical 57.6 mm
    1999 freezing days
    0
    Typical
    2.9

    Close to the typical monthly pattern.

  3. 1–31
    Frost watchGrowing season

    Heat accumulation

    1999 125 GDD
    Typical 124 GDD

    Rainfall

    1999 118.0 mm
    Typical 92.1 mm
    1999 freezing days
    0
    Typical
    0.0

    Close to the typical monthly pattern.

  4. 1–30
    Growing season

    Heat accumulation

    1999 176 GDD
    Typical 221 GDD

    Rainfall

    1999 84.1 mm
    Typical 104.1 mm

    Heat accumulation ran behind the typical month.

  5. 1–31
    Growing season

    Heat accumulation

    1999 281 GDD
    Typical 287 GDD

    Rainfall

    1999 150.5 mm
    Typical 105.3 mm

    Wetter than the typical month.

  6. 1–31
    Growing season

    Heat accumulation

    1999 227 GDD
    Typical 281 GDD

    Rainfall

    1999 100.1 mm
    Typical 93.0 mm

    Close to the typical monthly pattern.

  7. 1–30
    Growing seasonHarvest window

    Heat accumulation

    1999 192 GDD
    Typical 132 GDD

    Rainfall

    1999 53.8 mm
    Typical 78.7 mm

    Heat accumulation ran ahead of the typical month.

  8. 1–31
    Growing seasonHarvest window

    Heat accumulation

    1999 29 GDD
    Typical 37 GDD

    Rainfall

    1999 27.7 mm
    Typical 55.2 mm

    Drier than the typical month.

  9. 1–15
    Growing seasonHarvest window

    Heat accumulation

    1999 0 GDD
    Typical 3 GDD

    Rainfall

    1999 36.4 mm
    Typical 23.8 mm

    Wetter than the typical month.

View milestone calendar data as a table
Month1999 GDDTypical GDD1999 rainfallTypical rainfall1999 freezing daysTypical freezing days
March 1999 0 GDD 4 GDD 35.6 mm 55.9 mm 1113.1
April 1999 27 GDD 41 GDD 77.4 mm 57.6 mm 02.9
May 1999 125 GDD 124 GDD 118.0 mm 92.1 mm 00.0
June 1999 176 GDD 221 GDD 84.1 mm 104.1 mm Outside frost windowOutside frost window
July 1999 281 GDD 287 GDD 150.5 mm 105.3 mm Outside frost windowOutside frost window
August 1999 227 GDD 281 GDD 100.1 mm 93.0 mm Outside frost windowOutside frost window
September 1999 192 GDD 132 GDD 53.8 mm 78.7 mm Outside frost windowOutside frost window
October 1999 29 GDD 37 GDD 27.7 mm 55.2 mm Outside frost windowOutside frost window
November 1999 0 GDD 3 GDD 36.4 mm 23.8 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 Sep 13, 2026.

Replay the 1999 growing season

229 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 Sep 12, 2026.

The daily weather replay is complete, but the separate weather-event scan is not currently available for this vintage.

Closest weather matches

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

  1. Closest match

    2010

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

    Hot-day count
    the same: 0 days
    Growing-season precipitation
    less rain: 0.6 mm

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

    View 2010 →

  2. Second closest

    2008

    Most alike in Hot-day count and Growing degree days.

    Hot-day count
    the same: 0 days
    Growing degree days
    higher: 14 GDD

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

    View 2008 →

  3. Third closest

    2016

    Most alike in Hot-day count and Spring frost exposure.

    Hot-day count
    the same: 0 days
    Spring frost exposure
    more frost-exposure days: 1 day

    Largest difference: Growing-season precipitation — more rain

    View 2016 →
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: 2010 0.339; 2008 0.415; 2016 0.645.

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. +4.1°C −4.1°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. +350 mm −350 mm 1991 2000 2010 2020 2026
View historical chart data as a table
YearTemperature anomalyRainfall anomalyHot days
1991-1.6°C-61 mm0
1992-0.1°C-147 mm7
1993-0.8°C-61 mm0
1994-0.0°C-115 mm3
1995-0.6°C+54 mm1
1996-1.1°C+172 mm0
1997-1.2°C+66 mm0
1998-0.3°C+43 mm2
1999-0.2°C+38 mm0
2000+0.6°C-122 mm3
2001-0.3°C-57 mm1
2002-0.1°C+111 mm0
2003+0.5°C-104 mm8
2004-0.4°C-4 mm0
2005-0.3°C+24 mm1
2006+0.2°C+60 mm0
2007+0.0°C+29 mm5
2008-0.0°C-8 mm0
2009+0.4°C+104 mm1
2010-0.5°C+37 mm0
2011+0.4°C-86 mm3
2012+0.3°C-64 mm2
2013+0.1°C-12 mm8
2014+0.3°C+192 mm1
2015+0.8°C-95 mm18
2016-0.1°C+147 mm0
2017+0.6°C-105 mm3
2018+2.4°C-144 mm3
2019+0.9°C-48 mm5
2020+0.2°C+156 mm2
2021-0.2°C-76 mm1
2022+1.0°C+21 mm4
2023+1.2°C+11 mm4
2024+1.6°C+134 mm4
2025+0.5°C-129 mm1
2026+3.8°C-336 mm15

winter

-0.9°C

-0.7°C vs baseline

127 mm rain · -1 mm

spring

9.6°C

+0.4°C vs baseline

230 mm rain · +25 mm

summer

17.4°C

-1.1°C vs baseline

334 mm rain · +32 mm

harvest

11.1°C

+0.6°C vs baseline

117 mm rain · -40 mm

Weather events

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 +86.4 GDD per decade. The 95% interval is +56.7 to +116.2 GDD per decade, based on 35 eligible vintages.

How it is measured: Across the April 1–November 15 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
1991900 GDD-226 GDD
19921185 GDD+60 GDD
19931001 GDD-125 GDD
19941180 GDD+54 GDD
19951033 GDD-93 GDD
1996856 GDD-270 GDD
1997985 GDD-140 GDD
19981035 GDD-90 GDD
19991056 GDD-70 GDD
20001183 GDD+58 GDD
20011055 GDD-71 GDD
20021146 GDD+21 GDD
20031371 GDD+245 GDD
2004986 GDD-139 GDD
20051029 GDD-97 GDD
20061130 GDD+4 GDD
20071139 GDD+14 GDD
20081070 GDD-56 GDD
20091192 GDD+66 GDD
20101004 GDD-121 GDD
20111195 GDD+70 GDD
20121206 GDD+80 GDD
20131128 GDD+2 GDD
20141098 GDD-28 GDD
20151268 GDD+142 GDD
20161153 GDD+28 GDD
20171226 GDD+100 GDD
20181520 GDD+395 GDD
20191303 GDD+177 GDD
20201137 GDD+12 GDD
20211111 GDD-15 GDD
20221289 GDD+163 GDD
20231343 GDD+218 GDD
20241458 GDD+333 GDD
20251173 GDD+47 GDD
Growing-season mean temperature
+0.53 °C per decade 95% interval +0.39 to +0.67
Growing degree days
+86.45 GDD per decade 95% interval +56.67 to +116.22
Growing-season precipitation
+6.55 mm per decade 95% interval -24.63 to +37.74
Hot days
+0.76 days per decade 95% interval +0.03 to +1.49
Spring frost days
-1.73 days per decade 95% interval -3.75 to +0.29
Longest dry spell
+0.36 days per decade 95% interval -0.88 to +1.59

Last Updated September 12, 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+1.1°C+0.8 to +1.5°C25
2041-2060+1.8°C+1.1 to +2.7°C25
2061-2075+2.1°C+1.6 to +3.7°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 Sep 20, 2026 at 00:00 UTC · retrieved Sep 21, 2026 at 03:15 UTC

Scroll horizontally to see all forecast dates.

DateMonTueWedThuFriSatSunMonTueWed
High 16°C 14°C 16°C 19°C 17°C 21°C 22°C 23°C 22°C 13°C
Low 10°C 9°C 7°C 7°C 9°C 10°C 9°C 11°C 12°C 13°C
Rain 1.6 mm 1.0 mm 0.0 mm 0.5 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm 0.0 mm

Across the typical year: Early August has the warmest median afternoon high (24.7°C); Late January has the coolest (1.0°C). Wet days are most frequent in Late July (55%) and least frequent in Late October (34%). 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 Wachau 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. -10°C0°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 Wachau 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.

Wachau 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 1–152.1°C (-1.8–5.5°C)-1.8°C (-5.4–0.4°C)36%19.9 mm (9.9–34.3 mm)
Jan 16–311.0°C (-2.0–3.9°C)-3.4°C (-6.8–-0.2°C)34%21.9 mm (12.5–32.1 mm)
Feb 1–152.5°C (-0.8–6.6°C)-2.3°C (-5.3–0.4°C)34%15.5 mm (12.1–24.1 mm)
Feb 16–294.4°C (1.0–8.2°C)-1.4°C (-4.4–0.6°C)35%14.7 mm (10.3–29.9 mm)
Mar 1–157.4°C (3.8–10.5°C)0.2°C (-2.2–2.2°C)40%19.1 mm (14.3–27.8 mm)
Mar 16–319.2°C (5.2–13.2°C)1.3°C (-1.0–3.7°C)42%32.5 mm (20.0–45.5 mm)
Apr 1–1512.6°C (8.8–16.1°C)3.9°C (1.2–5.9°C)38%23.4 mm (16.1–32.5 mm)
Apr 16–3016.2°C (12.9–19.3°C)6.6°C (3.3–8.3°C)41%29.8 mm (17.5–40.0 mm)
May 1–1517.8°C (14.3–20.6°C)8.6°C (6.6–10.4°C)50%36.6 mm (25.8–52.6 mm)
May 16–3119.5°C (15.3–23.0°C)9.9°C (7.8–12.1°C)50%44.6 mm (35.7–62.7 mm)
Jun 1–1521.4°C (18.1–24.8°C)12.3°C (10.3–14.5°C)53%48.7 mm (28.3–68.0 mm)
Jun 16–3022.7°C (19.4–26.0°C)13.3°C (11.0–15.3°C)50%47.1 mm (32.6–60.7 mm)
Jul 1–1523.6°C (20.4–26.5°C)14.0°C (12.3–15.8°C)52%40.3 mm (30.5–56.8 mm)
Jul 16–3124.7°C (21.5–27.8°C)15.0°C (13.2–16.7°C)55%55.4 mm (36.7–71.9 mm)
Aug 1–1524.7°C (21.6–27.7°C)14.7°C (13.3–16.4°C)43%35.1 mm (24.8–56.0 mm)
Aug 16–3123.3°C (20.1–26.6°C)13.7°C (11.7–15.5°C)42%35.1 mm (28.6–50.5 mm)
Sep 1–1519.7°C (16.6–22.8°C)11.2°C (9.6–13.0°C)42%38.9 mm (25.9–54.7 mm)
Sep 16–3017.3°C (14.4–20.0°C)8.8°C (7.1–11.0°C)34%27.8 mm (18.0–44.7 mm)
Oct 1–1514.9°C (11.7–17.6°C)7.4°C (4.8–9.4°C)35%22.5 mm (12.2–41.6 mm)
Oct 16–3110.5°C (7.7–13.8°C)4.7°C (1.7–7.2°C)34%22.2 mm (16.1–35.5 mm)
Nov 1–158.3°C (5.4–10.8°C)2.6°C (0.2–5.2°C)34%23.3 mm (15.3–30.3 mm)
Nov 16–304.4°C (1.4–7.3°C)0.3°C (-2.2–2.8°C)36%22.4 mm (13.6–30.3 mm)
Dec 1–152.8°C (0.2–5.2°C)-1.1°C (-3.5–1.1°C)36%18.0 mm (11.9–34.2 mm)
Dec 16–311.9°C (-1.2–4.8°C)-2.2°C (-5.6–0.5°C)34%25.5 mm (9.7–31.0 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 September 12, 2026

Season to date

Growing season heat and rainfall

Apr 1–Sep 20, 2026

Compare this season across regions →

Growing degree days1353.8base 10°C
Growing-season rainfall273.9 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. 1354 GDD 0 Apr ’26MayJunJulAugSep
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. 493 mm 0 Apr ’26MayJunJulAugSep
View growing-season accumulation data
DateSeason GDD1991–2020 average GDDSeason rainfall1991–2020 average rainfall
2026-04-010.00.50.5 mm1.4 mm
2026-04-020.01.12.4 mm3.1 mm
2026-04-030.01.92.5 mm4.2 mm
2026-04-040.03.02.9 mm5.7 mm
2026-04-054.23.42.9 mm7.6 mm
2026-04-065.54.03.1 mm9.5 mm
2026-04-075.54.83.1 mm11.0 mm
2026-04-085.55.43.1 mm12.7 mm
2026-04-095.56.03.1 mm14.0 mm
2026-04-105.56.66.3 mm15.1 mm
2026-04-115.57.36.4 mm17.9 mm
2026-04-125.58.06.6 mm20.3 mm
2026-04-136.18.66.6 mm22.7 mm
2026-04-146.79.18.9 mm24.9 mm
2026-04-158.59.99.1 mm26.3 mm
2026-04-1610.911.011.8 mm27.9 mm
2026-04-1714.212.112.1 mm30.2 mm
2026-04-1816.712.812.1 mm33.6 mm
2026-04-1919.013.817.5 mm36.5 mm
2026-04-2019.014.918.2 mm38.7 mm
2026-04-2119.016.620.8 mm39.8 mm
2026-04-2219.018.620.9 mm41.2 mm
2026-04-2319.920.920.9 mm42.6 mm
2026-04-2422.823.220.9 mm44.8 mm
2026-04-2525.925.720.9 mm46.8 mm
2026-04-2627.328.520.9 mm49.4 mm
2026-04-2727.431.320.9 mm51.8 mm
2026-04-2828.434.320.9 mm53.2 mm
2026-04-2928.437.420.9 mm55.8 mm
2026-04-3028.440.720.9 mm57.6 mm
2026-05-0128.644.220.9 mm60.2 mm
2026-05-0232.547.620.9 mm62.2 mm
2026-05-0338.150.520.9 mm64.8 mm
2026-05-0446.153.020.9 mm67.8 mm
2026-05-0554.055.520.9 mm70.4 mm
2026-05-0662.058.322.0 mm72.9 mm
2026-05-0767.561.423.8 mm74.3 mm
2026-05-0870.464.723.8 mm76.8 mm
2026-05-0973.668.423.9 mm79.9 mm
2026-05-1077.272.523.9 mm82.0 mm
2026-05-1183.076.830.3 mm84.3 mm
2026-05-1283.080.732.7 mm87.5 mm
2026-05-1383.084.032.8 mm92.8 mm
2026-05-1483.087.336.2 mm97.1 mm
2026-05-1583.090.339.5 mm100.8 mm
2026-05-1683.093.450.9 mm103.9 mm
2026-05-1783.397.251.6 mm106.8 mm
2026-05-1884.0101.452.0 mm111.2 mm
2026-05-1986.7105.758.3 mm113.7 mm
2026-05-2090.5109.659.1 mm116.6 mm
2026-05-2196.6113.959.7 mm119.0 mm
2026-05-22102.0118.459.7 mm122.1 mm
2026-05-23110.0122.959.7 mm125.9 mm
2026-05-24120.1127.659.8 mm127.9 mm
2026-05-25132.1132.959.8 mm130.2 mm
2026-05-26144.0138.459.8 mm133.7 mm
2026-05-27155.8144.161.6 mm137.0 mm
2026-05-28163.5149.261.6 mm140.7 mm
2026-05-29171.8154.361.6 mm143.0 mm
2026-05-30180.7159.564.5 mm146.2 mm
2026-05-31189.1164.873.0 mm149.6 mm
2026-06-01194.6170.378.5 mm153.1 mm
2026-06-02202.0175.778.5 mm157.6 mm
2026-06-03207.6182.088.3 mm162.2 mm
2026-06-04214.6188.188.3 mm167.1 mm
2026-06-05218.6194.291.7 mm169.4 mm
2026-06-06223.7201.091.8 mm173.1 mm
2026-06-07232.8207.992.4 mm176.2 mm
2026-06-08241.5215.192.8 mm178.7 mm
2026-06-09251.0222.697.5 mm181.5 mm
2026-06-10253.4230.4108.8 mm185.8 mm
2026-06-11256.4237.9114.8 mm188.9 mm
2026-06-12258.1245.5119.3 mm193.0 mm
2026-06-13267.1252.6122.9 mm197.7 mm
2026-06-14273.7259.7123.0 mm199.9 mm
2026-06-15279.7267.1123.1 mm202.2 mm
2026-06-16285.5274.4124.4 mm205.2 mm
2026-06-17296.4281.5125.3 mm208.1 mm
2026-06-18309.4288.7126.5 mm210.5 mm
2026-06-19323.5296.5126.5 mm213.0 mm
2026-06-20337.0304.7129.3 mm216.7 mm
2026-06-21351.9313.3129.4 mm220.0 mm
2026-06-22366.4321.7132.3 mm223.3 mm
2026-06-23379.6329.8132.3 mm228.2 mm
2026-06-24393.4337.0132.3 mm233.0 mm
2026-06-25408.4344.3132.3 mm236.6 mm
2026-06-26425.7352.1132.3 mm240.6 mm
2026-06-27444.6360.3132.3 mm243.6 mm
2026-06-28464.2368.6133.5 mm247.2 mm
2026-06-29482.1377.1135.0 mm250.3 mm
2026-06-30498.6386.0135.8 mm253.8 mm
2026-07-01512.4395.0141.5 mm256.7 mm
2026-07-02524.3403.9141.8 mm259.3 mm
2026-07-03535.9412.9142.0 mm262.5 mm
2026-07-04544.9422.3142.0 mm264.8 mm
2026-07-05554.4431.6146.4 mm268.4 mm
2026-07-06564.0440.8151.7 mm272.1 mm
2026-07-07577.9449.7151.8 mm275.5 mm
2026-07-08588.5458.0159.8 mm279.7 mm
2026-07-09598.4466.1159.8 mm282.9 mm
2026-07-10608.4474.8159.8 mm286.4 mm
2026-07-11619.3482.9159.9 mm290.4 mm
2026-07-12629.7491.2160.0 mm294.7 mm
2026-07-13643.0499.8160.1 mm297.8 mm
2026-07-14656.3508.0164.8 mm301.3 mm
2026-07-15668.8516.7166.4 mm304.9 mm
2026-07-16682.7525.8167.2 mm307.3 mm
2026-07-17697.9535.1170.6 mm311.2 mm
2026-07-18711.1544.4173.1 mm314.9 mm
2026-07-19720.6554.2177.0 mm317.5 mm
2026-07-20728.2564.1177.4 mm320.8 mm
2026-07-21734.9574.2177.4 mm324.6 mm
2026-07-22743.0584.2177.6 mm327.9 mm
2026-07-23750.4594.0179.9 mm331.5 mm
2026-07-24758.2603.5180.5 mm336.2 mm
2026-07-25768.6612.8180.5 mm340.5 mm
2026-07-26780.2622.0181.2 mm342.8 mm
2026-07-27790.6632.3182.0 mm345.7 mm
2026-07-28802.8642.6182.0 mm349.7 mm
2026-07-29816.8652.6182.0 mm352.5 mm
2026-07-30833.4662.9183.1 mm355.1 mm
2026-07-31851.0673.1183.1 mm359.1 mm
2026-08-01867.2683.3185.0 mm361.7 mm
2026-08-02881.6694.0185.4 mm364.2 mm
2026-08-03898.5704.5186.0 mm370.5 mm
2026-08-04918.2714.6186.1 mm374.7 mm
2026-08-05936.4724.3187.0 mm376.5 mm
2026-08-06952.9734.3194.7 mm380.0 mm
2026-08-07966.8744.1198.2 mm386.2 mm
2026-08-08979.3754.6198.3 mm388.5 mm
2026-08-09991.7764.6198.3 mm391.6 mm
2026-08-101006.8773.9198.4 mm394.2 mm
2026-08-111021.4782.9198.4 mm396.5 mm
2026-08-121031.8791.7198.4 mm399.2 mm
2026-08-131041.7801.0198.4 mm402.9 mm
2026-08-141052.4810.1198.4 mm405.6 mm
2026-08-151066.2819.0198.4 mm409.4 mm
2026-08-161079.5827.6199.9 mm413.1 mm
2026-08-171090.4836.9208.1 mm415.3 mm
2026-08-181097.4846.7214.5 mm417.5 mm
2026-08-191109.1856.4217.2 mm419.7 mm
2026-08-201123.1865.6220.9 mm422.6 mm
2026-08-211134.1874.9224.9 mm425.7 mm
2026-08-221142.5883.8225.0 mm429.7 mm
2026-08-231150.1892.8225.1 mm431.6 mm
2026-08-241158.4901.5225.1 mm434.2 mm
2026-08-251167.2909.7228.2 mm436.9 mm
2026-08-261177.8918.0231.0 mm438.9 mm
2026-08-271189.3926.1231.0 mm440.9 mm
2026-08-281204.0933.8231.5 mm444.1 mm
2026-08-291214.3941.0232.8 mm447.3 mm
2026-08-301225.2947.8232.8 mm449.2 mm
2026-08-311236.9953.9234.3 mm452.1 mm
2026-09-011246.8959.7234.5 mm457.7 mm
2026-09-021256.8965.2235.0 mm461.5 mm
2026-09-031267.9971.3236.1 mm464.1 mm
2026-09-041282.0977.7236.2 mm467.9 mm
2026-09-051291.2983.3238.0 mm471.2 mm
2026-09-061299.3988.4238.0 mm476.0 mm
2026-09-071307.6993.4238.1 mm479.2 mm
2026-09-081320.8999.1238.2 mm480.8 mm
2026-09-091332.01004.5252.9 mm483.0 mm
2026-09-101337.21010.1254.3 mm485.1 mm
2026-09-111341.21015.9265.9 mm487.5 mm
2026-09-121347.41021.7266.9 mm490.1 mm
2026-09-131353.81027.0273.9 mm493.1 mm

Forecast outlook

ECMWF IFS 0.25° via Herbie · run Sep 20, 2026 at 00:00 UTC

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

GDD accumulation
35 GDDvs 31 GDD average
Total rainfall
3.1 mmvs 18.9 mm average

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

Mon9/21 16°Cavg 18°C 10°Cavg 9°C +3 GDD 1.6 mm
Tue9/22 14°Cavg 18°C 9°Cavg 9°C +1 GDD 1.0 mm
Wed9/23 16°Cavg 17°C 7°Cavg 9°C +1 GDD 0.0 mm
Thu9/24 19°Cavg 17°C 7°Cavg 9°C +3 GDD 0.5 mm
Fri9/25 17°Cavg 17°C 9°Cavg 9°C +2 GDD 0.0 mm
Sat9/26 21°Cavg 17°C 10°Cavg 9°C +4 GDD 0.0 mm
Sun9/27 22°Cavg 17°C 9°Cavg 9°C +4 GDD 0.0 mm
Mon9/28 23°Cavg 17°C 11°Cavg 9°C +6 GDD 0.0 mm
Tue9/29 22°Cavg 16°C 12°Cavg 8°C +6 GDD 0.0 mm
Wed9/30 13°Cavg 17°C 13°Cavg 8°C +4 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 September 20, 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 Wachau model uses a April 1–November 15 growing season, base 10°C GDD, and an operational hot-day marker of 32°C.