Climate Insights for Ísafjörður

The climate in Ísafjörður is cool. The average annual temperature is 3°C and approximately 1339mm of precipitation falls per year. Ísafjörður receives a notable amount of rainfall throughout the year, including during its driest month. Ísafjörður is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, March, February, when temperatures can drop to -4°C. Ísafjörður experiences heavy snowfall, typically from January through December.

Ísafjörður sees moderate temperature variation throughout the year, ranging from -4°C to 10°C. July 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 -4°C and the daily average is -2°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between October and November, with a 3°C shift in average temperatures.

Ísafjörður is a fairly wet location, receiving approximately 1339mm of precipitation annually, which averages out to around 112mm per month. The wettest month is December, averaging 161mm of rainfall. September and February also tend to see above-average precipitation. The driest month is June, with just 60mm. That's 101mm less than December, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Ísafjörður receives heavy snowfall, accumulating around 624cm annually from January through December. The snowiest month is February, with approximately 118cm. Winter travel should account for significant snow cover.

Ísafjörður is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 6km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Ísafjörður, which began on June 21, 2026. Ísafjörður 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 July at around 10°C, while the coldest stretch bottoms out in January near -4°C. Autumn is next, beginning on September 23, 2026 — 93 days from now.

The table below shows monthly climate averages for Ísafjörður 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.