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Warsaw Weather by Month
Average temperatures, rainfall and humidity for Warsaw, Poland, month by month, built from OpenWeather’s historical records. Use it to see what a typical Warsaw month looks like before you travel — then check the live Warsaw forecast for the days ahead.
Warmest month
August
26°C average high
Coolest month
January
-3°C average low
Wettest month
September
192 mm of rain
Driest month
November
24 mm of rain
Average temperature and rainfall in Warsaw by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 2°C | -3°C | -19°C / 18°C | 31 mm | 85% | 14 km/h |
| February | 4°C | -1°C | -18°C / 18°C | 24 mm | 81% | 14 km/h |
| March | 9°C | 1°C | -15°C / 25°C | 29 mm | 71% | 14 km/h |
| April | 15°C | 5°C | -5°C / 28°C | 41 mm | 64% | 15 km/h |
| May | 20°C | 9°C | -2°C / 31°C | 75 mm | 65% | 13 km/h |
| June | 25°C | 14°C | 5°C / 38°C | 108 mm | 65% | 12 km/h |
| July | 26°C | 15°C | 9°C / 38°C | 81 mm | 67% | 12 km/h |
| August | 26°C | 15°C | 5°C / 37°C | 170 mm | 67% | 12 km/h |
| September | 21°C | 11°C | 1°C / 35°C | 192 mm | 75% | 12 km/h |
| October | 14°C | 6°C | -7°C / 25°C | 56 mm | 83% | 13 km/h |
| November | 8°C | 3°C | -8°C / 19°C | 24 mm | 87% | 13 km/h |
| December | 4°C | 0°C | -16°C / 14°C | 70 mm | 88% | 14 km/h |
Best time to visit Warsaw
The most comfortable time to visit Warsaw is generally May to July, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around September, totalling about 901 mm a year.
Travellers who prefer heat should aim for August, when highs average 26°C. September is the month to avoid if rain would spoil your plans — it averages 192 mm, roughly 8× the rainfall of the driest month (November).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Warsaw forecast for what is happening now.