Climate averages 1991–2020
Prague weather
in May.
A mild, moderately wet month: the 5th warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Prague: daytime highs average 19.1°C and nights cool to about 9.2°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 68 mm of rain on roughly 13 days, which makes May a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 24 min on an average May day.
The nearest other city in this atlas is Ústí nad Labem (69 km away). In May its highs average 18.7°C, about as warm as Prague, with 71 mm of rain.
Among the 12 cities listed in Czechia, Prague ranks 2nd of 12 for the warmest May highs and 4th of 12 for the driest May (rainfall, lowest first). The mean May high of those 12 cities is 18.4°C; Prague is 0.7°C warmer than that mean.
From May to June, average highs rise by 3.3°C to 22.4°C, and monthly rainfall rises from 68 mm to 79 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
Prague 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-2.4°C | -2.4°C | 37 | 9.6 | 8.69 h |
| February | 5.0°C-2.1°C | -2.1°C | 32 | 8.3 | 10.010 h |
| March | 9.3°C0.7°C | 0.7°C | 43 | 10.8 | 11.812 h |
| April | 14.8°C4.4°C | 4.4°C | 38 | 9.5 | 13.714 h |
| May, selected | 19.1°C9.2°C | 9.2°C | 68 | 12.7 | 15.415 h |
| June | 22.4°C13.0°C | 13.0°C | 79 | 12.3 | 16.316 h |
| July | 24.6°C15.1°C | 15.1°C | 80 | 12.8 | 15.916 h |
| August | 24.8°C15.0°C | 15.0°C | 73 | 10.8 | 14.514 h |
| September | 19.7°C11.0°C | 11.0°C | 56 | 8.9 | 12.713 h |
| October | 14.1°C6.6°C | 6.6°C | 44 | 9.5 | 10.811 h |
| November | 8.0°C2.3°C | 2.3°C | 40 | 8.9 | 9.19 h |
| December | 4.0°C-1.0°C | -1.0°C | 41 | 9.5 | 8.28 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
- Ústí nad Labem in MayCzechia · 69 kmHigh 18.7°C · Low 9.3°C · 71 mm rain
- Pilsen in MayCzechia · 84 kmHigh 18.5°C · Low 8.6°C · 63 mm rain
- Liberec in MayCzechia · 88 kmHigh 17.4°C · Low 8.6°C · 80 mm rain
- Pardubice in MayCzechia · 97 kmHigh 18.5°C · Low 8.8°C · 71 mm rain
- Hradec Králové in MayCzechia · 102 kmHigh 18.3°C · Low 8.7°C · 59 mm rain
- Dresden in MayGermany · 117 kmHigh 18.4°C · Low 9.1°C · 75 mm rain
- České Budějovice in MayCzechia · 124 kmHigh 18.0°C · Low 8.4°C · 75 mm rain
- Jelenia Góra in MayPoland · 129 kmHigh 17.4°C · Low 8.4°C · 85 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 Prague) is explained once on the Prague year overview and on the Sources, method and limits page.