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Tarnów Weather by Month
Average temperatures, rainfall and humidity for Tarnów, Poland, month by month, built from OpenWeather's historical records. Use it to see what a typical Tarnów month looks like before you travel — then check the live Tarnów forecast for the days ahead.
Warmest month
August
26°C average high
Coolest month
January
-4°C average low
Wettest month
July
102 mm of rain
Driest month
January
21 mm of rain
Average temperature and rainfall in Tarnów 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 | -4°C | -25°C / 13°C | 21 mm | 83% | 13 km/h |
| February | 5°C | -2°C | -21°C / 17°C | 32 mm | 82% | 12 km/h |
| March | 9°C | 0°C | -26°C / 24°C | 45 mm | 74% | 12 km/h |
| April | 15°C | 5°C | -7°C / 32°C | 53 mm | 70% | 12 km/h |
| May | 19°C | 9°C | -2°C / 33°C | 95 mm | 73% | 11 km/h |
| June | 24°C | 14°C | 3°C / 39°C | 73 mm | 73% | 10 km/h |
| July | 26°C | 15°C | 7°C / 38°C | 102 mm | 73% | 10 km/h |
| August | 26°C | 15°C | 4°C / 42°C | 79 mm | 70% | 10 km/h |
| September | 20°C | 11°C | -1°C / 37°C | 70 mm | 76% | 11 km/h |
| October | 15°C | 6°C | -4°C / 28°C | 58 mm | 78% | 12 km/h |
| November | 8°C | 2°C | -15°C / 22°C | 33 mm | 84% | 12 km/h |
| December | 4°C | -2°C | -20°C / 14°C | 28 mm | 87% | 13 km/h |
Best time to visit Tarnów
The most comfortable time to visit Tarnów is generally June to August, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 688 mm a year.
Travellers who prefer heat should aim for August, when highs average 26°C. July is the month to avoid if rain would spoil your plans — it averages 102 mm, roughly 5× the rainfall of January.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Tarnów forecast for what is happening now.