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Cluj-Napoca Weather by Month
Average temperatures, rainfall and humidity for Cluj-Napoca, Romania, month by month, built from OpenWeather’s historical records. Use it to see what a typical Cluj-Napoca month looks like before you travel — then check the live Cluj-Napoca forecast for the days ahead.
Warmest month
August
28°C average high
Coolest month
January
-5°C average low
Wettest month
May
52 mm of rain
Driest month
January
11 mm of rain
Average temperature and rainfall in Cluj-Napoca 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 | -5°C | -27°C / 15°C | 11 mm | 85% | 8 km/h |
| February | 6°C | -3°C | -19°C / 19°C | 14 mm | 78% | 9 km/h |
| March | 12°C | 0°C | -18°C / 27°C | 27 mm | 68% | 10 km/h |
| April | 16°C | 4°C | -7°C / 30°C | 30 mm | 66% | 10 km/h |
| May | 21°C | 9°C | 0°C / 30°C | 52 mm | 70% | 10 km/h |
| June | 26°C | 14°C | 7°C / 37°C | 37 mm | 70% | 9 km/h |
| July | 27°C | 15°C | 9°C / 37°C | 41 mm | 67% | 9 km/h |
| August | 28°C | 15°C | 5°C / 37°C | 35 mm | 66% | 8 km/h |
| September | 23°C | 10°C | -1°C / 34°C | 34 mm | 71% | 9 km/h |
| October | 16°C | 5°C | -5°C / 31°C | 33 mm | 78% | 8 km/h |
| November | 9°C | 1°C | -12°C / 23°C | 25 mm | 85% | 7 km/h |
| December | 4°C | -2°C | -27°C / 15°C | 15 mm | 87% | 8 km/h |
Best time to visit Cluj-Napoca
The most comfortable time to visit Cluj-Napoca is generally June to July and September, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around May, totalling about 354 mm a year.
Travellers who prefer heat should aim for August, when highs average 28°C. May is the month to avoid if rain would spoil your plans — it averages 52 mm, roughly 5× the rainfall of the driest month (January).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Cluj-Napoca forecast for what is happening now.