Climate Insights for Heidrun

The climate in Heidrun is cool. The average annual temperature is 7°C and approximately 1025mm of precipitation falls per year. Heidrun receives a notable amount of rainfall throughout the year, including during its driest month. Heidrun 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 March, January, February, when temperatures can drop to 3°C. Snowfall occurs from January to December, with around 64cm accumulating over the season.

Heidrun has relatively stable temperatures year-round, staying within a 9°C range. August is the warmest month, though highs remain moderate at 12°C with a mean of 12°C. March is the coolest month, with minimum temperatures around 3°C and an average of 4°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.

Heidrun is a moderately rainy area, receiving approximately 1025mm of precipitation annually, which averages out to around 85mm per month. The wettest month is January, averaging 131mm of rainfall. December and February also tend to see above-average precipitation. The driest month is July, with just 47mm. That's 84mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Snowfall is a regular feature from January to December, with around 64cm accumulating over the season. January typically sees the most snow at around 20cm.

Heidrun is relatively calm, with an average annual wind speed of 8km/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 11km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 6km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 5km/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 10km/h in winter, 9km/h in spring, 7km/h in summer, 9km/h in autumn.

It is currently summer in Heidrun, which began on June 21, 2026. Heidrun 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 March near 3°C. Autumn is next, beginning on September 23, 2026 — 89 days from now.

The table below shows monthly climate averages for Heidrun 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.