Climate averages 1991–2020
Vienna weather
in May.
A mild, moderately wet month: the 5th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Vienna: daytime highs average 19.9°C and nights cool to about 10.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 72 mm of rain on roughly 12 days, which makes May a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 10 min on an average May day.
The nearest other city in this atlas is Bratislava (55 km away). In May its highs average 20.4°C, about as warm as Vienna, with 68 mm of rain.
Among the 6 cities listed in Austria, Vienna ranks 1st of 6 for the warmest May highs and 1st of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 18.9°C; Vienna is 1.0°C warmer than that mean.
From May to June, average highs rise by 3.7°C to 23.7°C, and monthly rainfall rises from 72 mm to 76 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Vienna climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 3.1°C-2.9°C | -2.9°C | 35 | 8.3 | 8.89 h |
| February | 5.5°C-2.2°C | -2.2°C | 32 | 7.6 | 10.210 h |
| March | 10.1°C0.9°C | 0.9°C | 47 | 9.8 | 11.912 h |
| April | 15.7°C5.4°C | 5.4°C | 45 | 9.0 | 13.614 h |
| May, selected | 19.9°C10.3°C | 10.3°C | 72 | 11.9 | 15.215 h |
| June | 23.7°C14.2°C | 14.2°C | 76 | 11.8 | 16.016 h |
| July | 25.8°C16.3°C | 16.3°C | 79 | 12.3 | 15.616 h |
| August | 25.7°C16.0°C | 16.0°C | 71 | 10.1 | 14.314 h |
| September | 20.3°C11.8°C | 11.8°C | 71 | 9.4 | 12.613 h |
| October | 14.7°C7.1°C | 7.1°C | 47 | 8.7 | 10.911 h |
| November | 8.7°C2.7°C | 2.7°C | 43 | 9.1 | 9.39 h |
| December | 3.8°C-1.7°C | -1.7°C | 38 | 8.8 | 8.48 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Bratislava in MaySlovakia · 55 kmHigh 20.4°C · Low 10.6°C · 68 mm rain
- Szombathely in MayHungary · 110 kmHigh 20.2°C · Low 10.4°C · 74 mm rain
- Győr in MayHungary · 111 kmHigh 20.9°C · Low 11.3°C · 67 mm rain
- Brno in MayCzechia · 111 kmHigh 19.2°C · Low 9.7°C · 65 mm rain
- Nitra in MaySlovakia · 127 kmHigh 20.6°C · Low 10.5°C · 67 mm rain
- Graz in MayAustria · 145 kmHigh 19.0°C · Low 8.3°C · 85 mm rain
- Zlín in MayCzechia · 148 kmHigh 18.7°C · Low 9.4°C · 81 mm rain
- Linz in MayAustria · 155 kmHigh 19.1°C · Low 9.5°C · 88 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Vienna) is explained once on the Vienna year overview and on the Sources, method and limits page.