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Rijeka Weather by Month
Average temperatures, rainfall and humidity for Rijeka, Croatia, month by month, built from OpenWeather’s historical records. Use it to see what a typical Rijeka month looks like before you travel — then check the live Rijeka forecast for the days ahead.
Warmest month
August
29°C average high
Coolest month
January
2°C average low
Wettest month
November
183 mm of rain
Driest month
July
69 mm of rain
Average temperature and rainfall in Rijeka 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 | 9°C | 2°C | -12°C / 16°C | 103 mm | 74% | 11 km/h |
| February | 10°C | 3°C | -15°C / 19°C | 127 mm | 74% | 11 km/h |
| March | 13°C | 5°C | -7°C / 23°C | 80 mm | 66% | 11 km/h |
| April | 17°C | 8°C | -3°C / 27°C | 80 mm | 63% | 10 km/h |
| May | 21°C | 12°C | 2°C / 32°C | 123 mm | 66% | 9 km/h |
| June | 27°C | 16°C | 6°C / 47°C | 73 mm | 64% | 8 km/h |
| July | 29°C | 19°C | 7°C / 38°C | 69 mm | 60% | 9 km/h |
| August | 29°C | 19°C | 8°C / 38°C | 82 mm | 61% | 9 km/h |
| September | 24°C | 15°C | 4°C / 35°C | 106 mm | 69% | 9 km/h |
| October | 18°C | 10°C | -3°C / 27°C | 118 mm | 76% | 8 km/h |
| November | 13°C | 7°C | -6°C / 22°C | 183 mm | 77% | 11 km/h |
| December | 10°C | 3°C | -17°C / 17°C | 126 mm | 78% | 10 km/h |
Best time to visit Rijeka
The most comfortable time to visit Rijeka 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 November, totalling about 1,269 mm a year.
Travellers who prefer heat should aim for August, when highs average 29°C. November is the month to avoid if rain would spoil your plans — it averages 183 mm, roughly 3× the rainfall of the driest month (July).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Rijeka forecast for what is happening now.