Climate averages 1991–2020
Bratislava 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 Bratislava: daytime highs average 20.4°C and nights cool to about 10.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 68 mm of rain on roughly 11 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 Vienna (55 km away). In May its highs average 19.9°C, about as warm as Bratislava, with 72 mm of rain.
Among the 6 cities listed in Slovakia, Bratislava ranks 2nd of 6 for the warmest May highs and 2nd of 6 for the driest May (rainfall, lowest first). The mean May high of those 6 cities is 19.4°C; Bratislava is 0.9°C warmer than that mean.
From May to June, average highs rise by 3.8°C to 24.1°C, and monthly rainfall rises from 68 mm to 73 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
Bratislava climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 2.9°C-3.1°C | -3.1°C | 35 | 7.9 | 8.89 h |
| February | 5.5°C-2.3°C | -2.3°C | 33 | 7.8 | 10.210 h |
| March | 10.2°C1.1°C | 1.1°C | 42 | 8.8 | 11.912 h |
| April | 16.0°C5.6°C | 5.6°C | 44 | 8.1 | 13.614 h |
| May, selected | 20.4°C10.6°C | 10.6°C | 68 | 11.1 | 15.215 h |
| June | 24.1°C14.5°C | 14.5°C | 73 | 11.3 | 16.016 h |
| July | 26.3°C16.6°C | 16.6°C | 78 | 11.6 | 15.616 h |
| August | 26.1°C16.4°C | 16.4°C | 67 | 9.5 | 14.314 h |
| September | 20.7°C12.0°C | 12.0°C | 67 | 9.0 | 12.613 h |
| October | 15.0°C7.3°C | 7.3°C | 47 | 8.7 | 10.911 h |
| November | 8.9°C3.0°C | 3.0°C | 46 | 8.8 | 9.39 h |
| December | 3.6°C-1.7°C | -1.7°C | 40 | 8.4 | 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
- Vienna in MayAustria · 55 kmHigh 19.9°C · Low 10.3°C · 72 mm rain
- Győr in MayHungary · 65 kmHigh 20.9°C · Low 11.3°C · 67 mm rain
- Nitra in MaySlovakia · 75 kmHigh 20.6°C · Low 10.5°C · 67 mm rain
- Szombathely in MayHungary · 108 kmHigh 20.2°C · Low 10.4°C · 74 mm rain
- Brno in MayCzechia · 122 kmHigh 19.2°C · Low 9.7°C · 65 mm rain
- Zlín in MayCzechia · 127 kmHigh 18.7°C · Low 9.4°C · 81 mm rain
- Székesfehérvár in MayHungary · 144 kmHigh 21.1°C · Low 11.3°C · 63 mm rain
- Olomouc in MayCzechia · 161 kmHigh 18.6°C · Low 8.8°C · 71 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 Bratislava) is explained once on the Bratislava year overview and on the Sources, method and limits page.