SeasonMapTromsø (Tromso) weather in August
Norway
August in Tromsø: cool, rainy, with clean air — an excellent time to visit.
#3 of 12 months in Tromsø · #685 of 1383 destinations to visit in August · comfort 80/100 (tier A)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Tromsø in August
Other months in Tromsø
Tromsø's forum calls October the wettest month of the year locally — genuinely no pattern to the rain, capable of days on end wet or days on end cloudy, changing quickly with sudden clear breaks. Regulars flag it as touch-and-go for early winter conditions too: some years bring icy roads and snow on the ground by late October, others stay closer to freezing rain. Layered, genuinely waterproof and windproof gear is standard advice regardless.
Add your own note from Tromsø's card on the map.
Tromsø climate normals — August
| Daytime high | 15°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 49°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 102 mm / 4 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 9°C / 47°F | |
| Sunshine | 8.5 h/day | |
| Daylight | 18 h | |
| Wind | 13 km/h / 8 mph | |
| Air quality (US AQI) | 28 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Tromsø in August
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusySummer holidays in Norway, school holidays in 7 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Tromsø's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Best weatherTromsø's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
Nearby, and something's on
Within 300 km of Tromsø — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Tromsø?
Tromsø in August — FAQ
- Is August a good time to visit Tromsø?
- August in Tromsø: cool, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Tromsø on SeasonMap's comfort score (80/100).
- What is the weather like in Tromsø in August?
- In August, Tromsø averages a daily high of 15.4°C and a low of 9.6°C, with about 101.5 mm of rain over roughly 13.9 rainy days.
- What is the air quality in Tromsø in August?
- Tromsø has a mean US Air Quality Index of about 28 in August.
Other months in Tromsø
Compare Tromsø in August
Warmer or cooler than Tromsø in August
Similar destinations in Northern Europe — August
Within 300 km: Svolvær's Lofoten walking season around 1 Jun – 20 Sep.