Rijeka Weather in August
What's the weather like in Rijeka (Primorsko-Goranska) in August 2025?
The climate in Rijeka during August can be summarized as mild and wet.
August is in the summer in Rijeka and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 11°C (52°F) is normal.
| Daytime temperature | 23.9°C 74.9°F |
|---|---|
| Nightly temperature | 11.4°C 52.4°F |
| Average temperature | 17.6°C 63.7°F |
| Daily sunshine | 9 hrs |
| Avg rainfall | 126 mm 5 ins |
| Rainy days | 13 days |
| Sea temperature | 25.3°C 77.6°F |
| Humidity | 75% |
| Windspeed | 7.9kph 5 mph |
On average August is the 6th driest month of the year in Rijeka with around 126mm 5 inches of rain making it a wet time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 9 hours of sunshine per day.
August temperatures in Rijeka
August rainfall
August hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Rijeka in August 2025.
Other monthly averages
Best places to visit in August
Rijeka weather stats
| Hottest month: | July | 24°C 75.2°F |
|---|---|---|
| Driest month: | July | 101mm 4ins |
| Sunniest month: | July | 10.1hrs |
| Coldest month: | January | 4.1°C 39.4°F |
| Wettest month: | November | 185mm 7.3ins |
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