Vienna weather in May
In May, Vienna has an average high of 21 °C70 °F and an average low of 10 °C51 °F, with about 85 mm3.3 in of precipitation. It is the 5th warmest month of the year and ranks 4th for precipitation.
How May compares with other months
Compared with April, May is 4.7 °C8.4 °F warmer on average and wetter by 44 mm1.7 in. Compared with June, May is 4.4 °C7.8 °F cooler on average and drier by 6 mm0.2 in. Daylight lasts about 15.2 hours around the middle of the month. Average relative humidity is 71% and the average cloud amount 64%.
Is May a good time to visit Vienna?
Yes — May is one of the most comfortable months to visit Vienna by our comfort score, which favours average highs of 21–28 °C, lows above 5 °C, little rain and moderate humidity.
What to wear in May
For Vienna in May, pack light layers — T-shirts plus a light sweater or jacket and an extra layer for the cooler mornings and evenings.
May in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Vienna | 2170 | 1051 | 853.3 |
| Bratislava | 2271 | 1051 | 712.8 |
| Győr | 2272 | 1151 | 662.6 |
| Brno | 2169 | 948 | 672.6 |
| Graz | 2169 | 1049 | 903.5 |
| Linz | 2067 | 1049 | 973.8 |
| Székesfehérvár | 2272 | 1152 | 652.6 |
| Žilina | 1967 | 948 | 883.5 |
| Budapest | 2272 | 1152 | 652.6 |
Nearby places that are more than 1 °C1.8 °F cooler: Linz and Žilina.
Other months in Vienna
- January3 °C37 °F / −4 °C26 °F
- February5 °C41 °F / −3 °C27 °F
- March10 °C51 °F / 1 °C33 °F
- April17 °C62 °F / 5 °C42 °F
- May21 °C70 °F / 10 °C51 °F
- June26 °C78 °F / 15 °C58 °F
- July28 °C82 °F / 17 °C62 °F
- August27 °C81 °F / 16 °C61 °F
- September22 °C71 °F / 11 °C52 °F
- October16 °C60 °F / 6 °C43 °F
- November9 °C49 °F / 2 °C36 °F
- December4 °C39 °F / −2 °C28 °F
Frequently asked questions
How warm is Vienna in May?
In May the average high in Vienna is 21 °C (70 °F) and the average low is 10 °C (51 °F).
Does it rain a lot in Vienna in May?
On average about 85 mm (3.3 in) of precipitation falls in May; it ranks 4th of the 12 months.
Is May the warmest month in Vienna?
No. The warmest month in Vienna is July, with an average high of 28 °C (82 °F). The coldest month is January, with an average low of -4 °C (26 °F).
How long is the day in Vienna in May?
In the middle of May the day in Vienna lasts about 15.2 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Vienna in May?
The average relative humidity in May is about 71%. This is a long-term average for the whole day.
How cloudy is Vienna in May?
On average about 64% of the sky is covered by cloud in May. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 373 m, while Vienna lies at about 171 m. Temperatures on this page were therefore adjusted by +1.3 °C2.4 °F using the standard lapse rate of 6.5 °C per 1,000 m.