Climate Insights for Reykjanesbær

The climate in Reykjanesbær is cool. The average annual temperature is 6°C and approximately 1324mm of precipitation falls per year. Reykjanesbær receives a notable amount of rainfall throughout the year, including during its driest month. Reykjanesbær is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 1°C. Snowfall occurs from January to December, with around 112cm accumulating over the season.

Reykjanesbær sees moderate temperature variation throughout the year, ranging from 1°C to 12°C. August is the warmest month, though highs remain moderate at 12°C with a mean of 11°C. January is the coolest month, with minimum temperatures around 1°C and an average of 2°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between September and October, with a 2°C shift in average temperatures.

Reykjanesbær is a fairly wet location, receiving approximately 1324mm of precipitation annually, which averages out to around 110mm per month. The wettest month is October, averaging 141mm of rainfall. September and January also tend to see above-average precipitation. The driest month is July, with just 68mm. That's 74mm less than October, 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 112cm accumulating over the season. February typically sees the most snow at around 28cm.

Reykjanesbær is very windy, with an average annual wind speed of 37km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 45km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in July, with average winds dropping to 27km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 18km/h gap between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 44km/h in winter, 37km/h in spring, 29km/h in summer, 38km/h in autumn.

It is currently spring in Reykjanesbær, which began on March 20, 2026. Reykjanesbær 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 12°C, while the coldest stretch bottoms out in January near 1°C. Summer is next, beginning on June 21, 2026 — 90 days from now.

The table below shows monthly climate averages for Reykjanesbær 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.