2026 Climate Averages

Tromsø: Weather Guide & Climate

Complete month-by-month weather guide: Tromsø. Best time to visit: September, October, November, December, January, February, March. Plan your trip with detailed climate data.

☀️ Climate Overview

Tromsø has a Cool climate with average yearly highs of 7°C, lows of 2°C, and approximately 17 rainy days per month.

The best time to visit Tromsø is during September, October, November, December, January, February, March, when weather is pleasant and ideal for outdoor activities

Drier season: Jan–Dec Wetter season: Mar–Oct

Now

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Feels like --
Wind --
Humidity --
UV Index --
Local time —

Air Quality

Best Time

J F M A M J J A S O N D
Conditions Excellent

Hottest

17°C July
Avg Low 12°C
Rain 14 days

Coldest

-6°C January
Avg High -1°C
Rain 17 days

Driest Month

13 rainy days December
Avg High -1°C
Avg Low -6°C

Windiest Month

15 km/h

February (gusts 46)

Forecast for your trip dates

Up to 14 days ahead

Weather by Season

Spring

Mar–May

High 5°C
Low -1°C
Rain 19 days
Crowds
Moderate
Travel Costs Shoulder Rates

Summer

Jun–Aug

High 16°C
Low 11°C
Rain 16 days
Crowds
Very Quiet
Travel Costs Value Rates

Autumn

Sep–Nov

High 7°C
Low 3°C
Rain 18 days
Crowds
Very Busy
Travel Costs Shoulder Rates

Winter

Dec–Feb

High -1°C
Low -6°C
Rain 16 days
Crowds
Very Busy
Travel Costs Peak Rates

Month-by-Month Weather Table

January

Best
Excellent
-1° / -6°
17d (154mm)
0.2h
78% Humid
UV 0 Low

February

Best
Excellent
0° / -5°
18d (127mm)
1.8h
78% Humid
UV 0.5 Low

March

Best
Excellent
2° / -4°
20d (136mm)
5.3h
78% Humid
UV 2.2 Moderate

April

Wet
3° / -2°
19d (106mm)
9h
76% Humid
UV 4.9 Moderate

May

Wet
9° / 4°
18d (110mm)
10.4h
73% Humid
UV 6.2 High

June

Wet
15° / 9°
16d (85mm)
12.1h
74% Humid
UV 6.7 High

July

Wet
17° / 12°
14d (105mm)
11.4h
79% Humid
UV 6.1 High

August

Wet
17° / 11°
18d (142mm)
8.6h
80% Very Humid
UV 4.2 Moderate

September

Best
Excellent
13° / 8°
18d (134mm)
5.8h
81% Very Humid
UV 2.2 Moderate

October

Best
Excellent
6° / 3°
19d (119mm)
3h
82% Very Humid
UV 0.7 Low

November

Best
Excellent
2° / -2°
17d (107mm)
0.4h
81% Very Humid
UV 0 Low

December

Best
Excellent
-1° / -6°
13d (83mm)
0h
78% Humid
UV 0 Low

⚖️Find Your Ideal Month

Adjust the sliders to weight what matters most to you.

5
3
3
Your Best MonthJulScore: 8.1
1.Jul
8.12.Aug
7.13.Jun
6.74.May
5.85.Apr
5.36.Sep
2.57.Jan
1.58.Feb
1.59.Mar
1.510.Oct
1.511.Nov
1.512.Dec
1.5

Where to Stay

See hotels, apartments & rentals around Tromsø – live prices from Booking.com, Expedia, Vrbo and more

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Tromsø

Arctic Circle gateway for Northern Lights with Northern Lights hunting tours and Arctic Cathedral, midnight sun, and polar adventures.

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Frequently Asked Questions

What type of climate does Tromsø have?
Tromsø has a cool climate with average yearly temperatures of 7°C and 2°C.
When is the best time to visit Tromsø?
The best time to visit Tromsø is during September, October, November, December, January, February, March, when temperatures average around -1°C and conditions are ideal for sightseeing.
What are the hottest and coldest months in Tromsø?
The hottest month in Tromsø is July with average highs of 17°C, while the coldest is January with average lows of -6°C.
When is the rainy season in Tromsø?
Tromsø sees the most rain in March (20 rainy days), while December is the driest month (13 rainy days).
Does it get cold at night in Tromsø?
Night temperatures vary throughout the year. The coldest nights are in January (-6°C), while July has the warmest evenings (12°C). Pack layers for cooler months.

Weather Data: Based on 2020–2025 historical climate data from Open-Meteo

Last Updated: February 2026

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