Trondheim Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Trondheim.
Climate overview of Trondheim
Trondheim, Norway, sees big temperature differences between seasons, with July peaking at 20°C (68°F) and February dropping to 1°C (34°F).
Rain/snowfall is high, totalling around 1324 mm (52 in) per year. June is the wettest month and April the driest. The most sunshine falls in May, with an average of 8.0 hours of daily sunshine.
Trondheim Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Trondheim — and find the best time to visit.
Monthly Temperature in Trondheim
Visitors to Trondheim can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a very cold 1°C (34°F) during cooler months like February.
At night, you can expect temperatures ranging from 10°C (50°F) in July to around -6°C (21°F) during February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Trondheim
Trondheim is known for its substantial rain/snowfall, with annual precipitation reaching 1324 mm (52 in). Year-round, Trondheim has a balanced climate with minimal variation in precipitation. The difference between the wettest month, June, with 129 mm (5.1 in), and the driest month, April, with 85 mm (3.3 in), is minimal. For more details, please visit our Trondheim Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Trondheim
Seasonal changes in sunshine hours are quite dramatic in Trondheim. While May receives considerable daily sunshine with up to 8.0 hours, December marks the darkest time of the year, where sunshine is scarce with only 0.6 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Water Temperature in Trondheim
The mean water temperature over the year ranges from 5°C (41°F) in February to 13°C (55°F) in August.
Water temperature over the year
Humidity in Trondheim by Month
The relative humidity is high throughout the year in Trondheim.
The city experiences its highest humidity in September, reaching 82%. In May, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Trondheim
The mean wind speed varies between 2 m/s (4 knots) and 4 m/s (8 knots) throughout the year. It is lowest in June, July and August and highest during February. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Trondheim
The weather does bring rainfall during this period, between 114 mm (4.5 in) and 129 mm (5.1 in). Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.
Frequently asked questions about the climate in Trondheim
What is the best time to visit Trondheim?
July typically offers the most optimal weather in Trondheim. In contrast, January, February, March, April, October, November and December tend to have less optimal conditions.
What temperatures can I expect in Trondheim?
Daytime highs range from 1°C (34°F) in February to 20°C (68°F) in July. Nighttime lows range from -6°C (21°F) to 10°C (50°F). Temperatures vary considerably through the year.
How much rain does Trondheim get?
Annual rainfall is around 1324 mm (52 in). June is the wettest month with 129 mm (5.1 in), while April is the driest with 85 mm (3.3 in).
How sunny is Trondheim?
Trondheim receives around 1,631 hours of sunshine per year. May is the sunniest month with 239 hours, while December is the cloudiest with just 19 hours.
Trondheim 3-Day Forecast
Trondheim 3-Day Forecast
Trondheim on the map
Trondheim is highlighted — select any city to see its climate.
Popular this month
Where to go in July — average daytime high across popular destinations.
Oslo
22°C (72°F) Kristiansand
20°C (68°F) Trondheim20°C (68°F) Stavanger
18°C (64°F) Bergen
19°C (66°F) Hemsedal
17°C (63°F) Tromsø17°C (63°F) Reine14°C (57°F) 
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