Climate Insights for Grímsey Airport

The climate in Grímsey Airport is cool. The average annual temperature is 4°C and approximately 912mm of precipitation falls per year. Grímsey Airport receives a notable amount of rainfall throughout the year, including during its driest month. Grímsey Airport 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, March, February, when temperatures can drop to 0°C. Grímsey Airport experiences heavy snowfall, typically from January through December.

Grímsey Airport has relatively stable temperatures year-round, staying within a 10°C range. August is the warmest month, though highs remain moderate at 10°C with a mean of 9°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 2°C between highs and lows. The sharpest temperature change occurs between May and June, with a 3°C shift in average temperatures.

Grímsey Airport is a moderately rainy area, receiving approximately 912mm of precipitation annually, which averages out to around 76mm per month. The wettest month is October, averaging 105mm of rainfall. December and January also tend to see above-average precipitation. The driest month is May, with just 44mm. That's 61mm 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. Grímsey Airport receives heavy snowfall, accumulating around 236cm annually from January through December. The snowiest month is January, with approximately 47cm. Winter travel should account for significant snow cover.

Grímsey Airport is very windy, with an average annual wind speed of 39km/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 48km/h, which can feel quite blustery and may affect outdoor activities. The calmest conditions occur in August, with average winds dropping to 29km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 19km/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 47km/h in winter, 38km/h in spring, 30km/h in summer, 41km/h in autumn.

It is currently spring in Grímsey Airport, which began on March 20, 2026. Grímsey Airport 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 10°C, while the coldest stretch bottoms out in January near 0°C. Summer is next, beginning on June 21, 2026 — 89 days from now.

The table below shows monthly climate averages for Grímsey Airport 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.