Climate Insights for Trondheim

The climate in Trondheim is cool. The average annual temperature is 6°C and approximately 1,206 mm of precipitation falls per year. Trondheim receives a notable amount of rainfall throughout the year, including during its driest month. Trondheim 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, February, December, when temperatures can drop to -4°C. Trondheim experiences heavy snowfall, typically from January through December.The climate in Trondheim is cool. The average annual temperature is 43°F and approximately 47.5 in of precipitation falls per year. Trondheim receives a notable amount of rainfall throughout the year, including during its driest month. Trondheim 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, February, December, when temperatures can drop to 24°F. Trondheim experiences heavy snowfall, typically from January through December.

Temperatures in Trondheim vary considerably across the year, with a 24°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 20°C with a mean of 16°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 7°C between highs and lows. The sharpest temperature change occurs between September and October, with a 5°C shift in average temperatures.Temperatures in Trondheim vary considerably across the year, with a 44°F difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 68°F with a mean of 60°F. The coldest month is January, when overnight lows fall to 24°F and the daily average is 29°F. Daily temperature variation is modest, with an average difference of 12°F between highs and lows. The sharpest temperature change occurs between September and October, with a 10°F shift in average temperatures.

Trondheim is a fairly wet location, receiving approximately 1,206 mm of precipitation annually, which averages out to around 101 mm per month. The wettest month is October, averaging 124 mm of rainfall. August and December also tend to see above-average precipitation. The driest month is May, with just 77 mm. That's 48 mm 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. Trondheim receives heavy snowfall, accumulating around 249cm annually from January through December. The snowiest month is January, with approximately 52cm. Winter travel should account for significant snow cover.Trondheim is a fairly wet location, receiving approximately 47.5 in of precipitation annually, which averages out to around 4 in per month. The wettest month is October, averaging 4.9 in of rainfall. August and December also tend to see above-average precipitation. The driest month is May, with just 3 in. That's 1.9 in 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. Trondheim receives heavy snowfall, accumulating around 98in annually from January through December. The snowiest month is January, with approximately 21in. Winter travel should account for significant snow cover.

Trondheim is relatively calm, with an average annual wind speed of 9km/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 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 7km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 3km/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, 8km/h in summer, 9km/h in autumn.Trondheim is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 4mph, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2mph 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 6mph in winter, 5mph in spring, 5mph in summer, 6mph in autumn.

The best time to visit Trondheim is during July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 97 mm per month. By contrast, January can be quite cold with temperatures dropping to -4°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Trondheim is during July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 60°F with modest rainfall averaging 3.8 in per month. By contrast, January can be quite cold with temperatures dropping to 24°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Trondheim 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.The table below shows monthly climate averages for Trondheim based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.