Climate Insights for Rijeka

The climate in Rijeka is temperate. The average annual temperature is 11°C and approximately 1841mm of precipitation falls per year. Rijeka receives a notable amount of rainfall throughout the year, including during its driest month. Rijeka is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to -2°C. Snowfall occurs from January to December, with around 127cm accumulating over the season.

Temperatures in Rijeka vary considerably across the year, with a 28°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 26°C and the mean temperature sits around 21°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between May and June, with a 5°C shift in average temperatures.

Rijeka is a fairly wet location, receiving approximately 1841mm of precipitation annually, which averages out to around 153mm per month. The wettest month is November, averaging 232mm of rainfall. September and February also tend to see above-average precipitation. The driest month is July, with just 100mm. That's 132mm less than November, the wettest month. Rainfall is relatively evenly distributed throughout the year, so there is no pronounced dry or wet season to plan around. Snowfall is a regular feature from January to December, with around 127cm accumulating over the season. February typically sees the most snow at around 46cm.

Rijeka is relatively calm, with an average annual wind speed of 2km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is March, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 1km/h gap between the calmest and windiest months.

It is currently summer in Rijeka, which began on June 21, 2026. Rijeka is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 26°C, while the coldest stretch bottoms out in January near -2°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The table below shows monthly climate averages for Rijeka based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.