Tromsø Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tromsø.
Climate overview of Tromsø
Tromsø, Troms, Norway, experiences significant temperature variation throughout the year. Summers bring daytime highs of 17°C (63°F) in July, while winters cool to -3°C (27°F) in January.
With around 1358 mm (53 in) of annual rain/snowfall, Tromsø has a notably wet climate. However, this rain/snowfall is not evenly distributed, the city has mild summers and very cold winters. The wettest month is September. The sunniest month is May, with 7.3 hours of sunshine per day on average.
Tromsø Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tromsø - and find the best time to visit.
Monthly Temperature in Tromsø
Depending on the time of the year, temperatures range from moderate to very cold in Tromsø. Average daytime temperatures reach a moderate 17°C (63°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -3°C (27°F).
At night, temperatures range from around 9°C (48°F) in July to -10°C (14°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Tromsø
Tromsø has a relatively rain/snowy climate with high precipitation levels, averaging 1358 mm (53 in) of rain/snowfall annually. Despite minor fluctuations, Tromsø enjoys fairly consistent precipitation throughout the year. In September, you can expect around 141 mm (5.6 in) of precipitation, while in April, Tromsø receives about 97 mm (3.8 in). For more details, please visit our Tromsø 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 Tromsø
Tromsø can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 7.3 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 0.0 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Tromsø
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May and June
- Seasonal pattern: Mild summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Tromsø
What is the best time to visit Tromsø?
July and August typically offer the most optimal weather in Tromsø. In contrast, January, February, March, April, May, June, September, October, November and December tend to have less optimal conditions. Tromsø has mild summers and very cold winters.
What temperatures can I expect in Tromsø?
Daytime highs range from -3°C (27°F) in January to 17°C (63°F) in July. Nighttime lows range from -10°C (14°F) to 9°C (48°F). Temperatures vary considerably through the year.
How much rain does Tromsø get?
Annual rainfall is around 1358 mm (53 in). September is the wettest month with 141 mm (5.6 in), while April is the driest with 97 mm (3.8 in).
How sunny is Tromsø?
Tromsø receives around 1,262 hours of sunshine per year. May is the sunniest month with 219 hours, while December is the cloudiest with just 0 hours.
Tromsø 3-Day Forecast
Tromsø on the map
Tromsø is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The rugged landscape of the Norwegian fjords
This landscape is rated as the most beautiful in the world and it is something you need to experience at least once in your life.
Discover Norway's Hidden Gem: The Littleisland Lighthouse
Explore Littleisland Lighthouse in Norway - a serene getaway offering unique stays, breathtaking views, and a journey into tranquil simplicity.
The Majestic Geirangerfjord: Norway's Crown Jewel
Explore Norway's stunning Geirangerfjord, famous for its dramatic cliffs, waterfalls, and scenic routes. Breathtaking landscapes and outdoor adventures
Swimming with orcas in Norway
The best travel period to travel to Norway for the orcas are the months October, November December, January and February. Swimming with orcas in Norway might be the bucket list trip of your life.