Tromsø weather by month & the best time to visit
Norway · small town · subarctic climate
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The best time to visit Tromsø is July — its sunniest month (Sunshine Score 51/100), with August close behind. Tromsø averages about 1,713 hours of sunshine a year. Daytime highs around 17°C / 63°F and roughly 112 mm of rain in July.
When is the best time to visit Tromsø?
For sunshine, the best time to visit Tromsø is July, then August. The dullest month is January (0/100, 106 mm of rain). The full month-by-month picture is in the table below.
How sunny is Tromsø?
Tromsø isn't a sunny place by world standards: about 1,713 hours of sunshine a year. 51 Sunshine Score points separate July (51) from January (0), so the month you pick matters. It ranks #3 of 36 destinations in Norway for annual sunshine, above the national median of 1,417 hours. The year's 1,347 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -4° / 25°F | -9° / 16°F | 106 mm | 0 |
| February | 0 | -4° / 25°F | -9° / 16°F | 109 mm | 0 |
| March | 0 | -1° / 30°F | -7° / 19°F | 120 mm | 0 |
| April | 0 | 3° / 37°F | -3° / 27°F | 89 mm | 1 |
| May | 6 | 9° / 48°F | 3° / 37°F | 95 mm | 2 |
| June | 29 | 13° / 55°F | 7° / 45°F | 106 mm | 3 |
| July | 51 | 17° / 63°F | 11° / 52°F | 112 mm | 3 |
| August | 45 | 16° / 61°F | 9° / 48°F | 113 mm | 2 |
| September | 16 | 11° / 52°F | 6° / 43°F | 137 mm | 1 |
| October | 0 | 4° / 39°F | 0° / 32°F | 122 mm | 0 |
| November | 0 | 0° / 32°F | -4° / 25°F | 114 mm | 0 |
| December | 0 | -2° / 28°F | -7° / 19°F | 124 mm | 0 |
Nearest destinations
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Head-to-head
How Tromsø compares month by month: Tromsø vs Harstad/Narvik · Tromsø vs Bodø · Tromsø vs Alta · Tromsø vs Kittilä · all comparisons
Tromsø: questions and answers
What kind of destination is Tromsø?
Tromsø is a small town in Norway with a subarctic climate.
How many hours of sunshine does Tromsø get a year?
Tromsø gets about 1,713 hours of sunshine a year, at its best around July.
When is the best time to visit Tromsø?
The sunniest time to visit Tromsø is July, when the Sunshine Score peaks at 51/100 (with August close behind). Expect daytime highs around 17°C / 63°F.
What is the least sunny month in Tromsø?
January is the least sunny month in Tromsø, scoring 0/100 with about 106 mm of rain.
How strong is the sun in Tromsø?
The typical midday UV index in Tromsø peaks around 3 (moderate) in June, easing to about 0 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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