Our verdict
The best time to visit Tromso is May-August
In the summer months, temperatures can reach as high as 18℃ (64℉) in Tromso. In the winter months, it can get down to as low as -12℃ (11℉) at night.
If you’re keen to see the sights of Tromso during the day, the sun stays up the longest around August. On average it rains the most days in March, making it the wettest month of the year. Although it’s the wet season, it can often rain a little bit during the day or evening but have fine weather for a majority of the day too, so don’t let this put you off.
Keep reading to find out more detailed information about the seasons and climate in Tromso, as well as our favourite tools to help you find the best options for transport, accommodation, and much more.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
Tromso seasons
Before you continue, it’s important to know when the seasons are in Tromso as they might be different to yours depending on where in the world you’re travelling from. Tromso is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in Tromso
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Tromso for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
Tromso climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Tromso for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
Tromso in January
- Average temperature: -6℃ (21℉)
- Average high temperature: -5℃ (24℉)
- Average low temperature: -9℃ (17℉)
- Average humidity: 84%
- Average sunny days: 13 days
- Average rainfall: 82mm (3") over 5 days
- Average snow days: 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in February
- Average temperature: -6℃ (21℉)
- Average high temperature: -4℃ (24℉)
- Average low temperature: -9℃ (16℉)
- Average humidity: 85%
- Average sunny days: 10 days
- Average rainfall: 81mm (3") over 5 days
- Average snow days: 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in March
- Average temperature: -4℃ (24℉)
- Average high temperature: -2℃ (28℉)
- Average low temperature: -7℃ (19℉)
- Average humidity: 86%
- Average sunny days: 6 days
- Average rainfall: 103mm (4") over 7 days
- Average snow days: 23 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in April
- Average temperature: -1℃ (30℉)
- Average high temperature: 1℃ (33℉)
- Average low temperature: -4℃ (24℉)
- Average humidity: 89%
- Average sunny days: 8 days
- Average rainfall: 88mm (3") over 10 days
- Average snow days: 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in April, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in May
- Average temperature: 3℃ (38℉)
- Average high temperature: 5℃ (41℉)
- Average low temperature: 1℃ (33℉)
- Average humidity: 85%
- Average sunny days: 10 days
- Average rainfall: 77mm (3") over 14 days
- Average snow days: 8 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in May, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in June
- Average temperature: 8℃ (46℉)
- Average high temperature: 9℃ (49℉)
- Average low temperature: 5℃ (42℉)
- Average humidity: 80%
- Average sunny days: 7 days
- Average rainfall: 78mm (3") over 20 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in June, make sure you pack a warm jacket or coat.
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Tromso in July
- Average temperature: 12℃ (53℉)
- Average high temperature: 14℃ (57℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 79%
- Average sunny days: 10 days
- Average rainfall: 50mm (2") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in July, make sure you pack a warm jacket or coat.
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Tromso in August
- Average temperature: 11℃ (51℉)
- Average high temperature: 13℃ (56℉)
- Average low temperature: 8℃ (46℉)
- Average humidity: 81%
- Average sunny days: 11 days
- Average rainfall: 62mm (2") over 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in August, make sure you pack a warm jacket or coat.
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Tromso in September
- Average temperature: 8℃ (46℉)
- Average high temperature: 10℃ (50℉)
- Average low temperature: 5℃ (41℉)
- Average humidity: 83%
- Average sunny days: 11 days
- Average rainfall: 80mm (3") over 18 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in September, make sure you pack a warm jacket or coat.
Tromso in October
- Average temperature: 2℃ (36℉)
- Average high temperature: 3℃ (38℉)
- Average low temperature: 1℃ (33℉)
- Average humidity: 83%
- Average sunny days: 10 days
- Average rainfall: 92mm (4") over 15 days
- Average snow days: 9 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in October, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in November
- Average temperature: -1℃ (30℉)
- Average high temperature: -0℃ (32℉)
- Average low temperature: -3℃ (27℉)
- Average humidity: 83%
- Average sunny days: 10 days
- Average rainfall: 85mm (3") over 11 days
- Average snow days: 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in November, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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Tromso in December
- Average temperature: -4℃ (25℉)
- Average high temperature: -3℃ (28℉)
- Average low temperature: -6℃ (21℉)
- Average humidity: 84%
- Average sunny days: 11 days
- Average rainfall: 89mm (3") over 7 days
- Average snow days: 18 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to Tromso in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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