The climate in Vienna during May can be summarized as warm and a little damp.
May is in the spring in Vienna and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 30°C (85°F), whilst at night 15°C (59°F) is normal.
| Daytime temperature | 29.6°C 85.2°F |
|---|---|
| Nightly temperature | 14.9°C 58.7°F |
| Average temperature | 22.2°C 72°F |
| Daily sunshine | 10.6 hrs |
| Avg rainfall | 92 mm 3.6 ins |
| Rainy days | 9 days |
| Sea temperature | 21.7°C 71°F |
| Humidity | 70% |
| Windspeed | 11.9kph 7 mph |
On average May is the 4th driest month of the year in Vienna with around 92mm 3.6 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 10.6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Vienna in May 2025.
| Hottest month: | July | 33°C 91.4°F |
|---|---|---|
| Driest month: | October | 54mm 2.1ins |
| Sunniest month: | April | 10hrs |
| Coldest month: | January | 14.4°C 57.9°F |
| Wettest month: | July | 123mm 4.8ins |