Climate Overview
The climate in Reykjanesbær is cool. The average annual temperature is 6°C and approximately 1342mm 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, June. The coldest months are January, February, December, when temperatures can drop to 0°C. Snowfall occurs from January to December, with around 168cm accumulating over the season.
Temperature
Reykjanesbær sees moderate temperature variation throughout the year, ranging from 0°C to 12°C. August is the warmest month, though highs remain moderate at 12°C with a mean of 11°C. The coldest month is January, when overnight lows fall to 0°C and the daily average is 1°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between September and October, with a 3°C shift in average temperatures.
Precipitation
Reykjanesbær is a fairly wet location, receiving approximately 1342mm of precipitation annually, which averages out to around 112mm per month. The wettest month is September, averaging 140mm of rainfall. October and January also tend to see above-average precipitation. The driest month is July, with just 76mm. That's 64mm less than September, 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 168cm accumulating over the season. February typically sees the most snow at around 42cm.
Wind
Reykjanesbær is moderately windy, with an average annual wind speed of 22km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 27km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 10km/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 26km/h in winter, 22km/h in spring, 18km/h in summer, 23km/h in autumn.
Seasons
87 days until Winter
It is currently autumn in Reykjanesbær, which began on September 23, 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 0°C. Winter is next, beginning on December 21, 2026 (87 days from now).
Spring
Temperatures range from 1 to 8°C. Rainfall is heavy, totalling around 331mm across the season with a monthly average of 110mm. Winds are moderate at around 22km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 8 to 12°C. Precipitation is moderate at around 248mm for the season, averaging 83mm per month. Winds are moderate at around 18km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 2 to 10°C. Rainfall is heavy, totalling around 393mm across the season with a monthly average of 131mm. Expect around 17cm of snow accumulation during this period. Winds are moderate at around 23km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 0 to 4°C. Rainfall is heavy, totalling around 370mm across the season with a monthly average of 123mm. Expect around 108cm of snow accumulation during this period. Winds are strong, averaging 26km/h. Warm winter clothing and waterproof boots are a must, and travel may be affected by snow.
Monthly Climate Data
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.
