August · Norway
Best time to visit Tromso in August Weather, crowds & prices
Weather in Tromso in August
Average temperature 15°C, 139 mm of rain, about 19 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
7.7/10
Ranked #3 of 12 months
- Avg temp
- 15°C
- Rainfall
- 139 mm
- Humidity
- 81%
- Days with 6h+ sun
- 19
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Tromso scores 7.7/10 for nature and wildlife travel - one of the top 12-month picks (#3). Expect around 15°C, 139 mm of rain, and roughly 19 days with 6+ hours of sunshine this month.
Tromsø sits on an island inside the Arctic Circle, with the Arctic Cathedral across the water and the Fjellheisen cable car rising above the city.
August in Tromso — reliably good (3rd best month)
August averages 15°C (58°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 139 mm this is a genuinely wet month: about 19 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 7.7/10 here, 3rd of 12 months, against 8.7/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella, footwear you can get muddy.
Plan for peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Tromso in August?
- In August, Tromso averages 15°C, 139 mm of rain, and about 19 days with 6+ hours of sunshine. Its climate-comfort score is 7.7/10.
- Is August a good time to visit Tromso?
- August earns a 7.7/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Tromso in August?
- Expect about 139 mm of rain in August. Average humidity is 81% and there are about 19 days with 6+ hours of sunshine.
Curated in Tromso
Tickets & experiences
Things to do in Tromso
Tromso, Norway. Live activities and tours from GetYourGuide, matched to this destination.