SeasonMapTromsø (Tromso) weather in May
Norway
May in Tromsø: cold, a little rain, with clean air — a great time to visit.
#4 of 12 months in Tromsø · #948 of 1383 destinations to visit in May · comfort 74/100 (tier B)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Tromsø in May
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 — May
| Daytime high | 9°C / 48°F | 🧥 cold |
|---|---|---|
| Nighttime low | 3°C / 37°F | |
| Feels like (high) | 5°C / 41°F | |
| Rainfall | 68 mm / 2.7 in | 🌦 some rain |
| Rainy days | 13 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 1°C / 33°F | |
| Sunshine | 10.8 h/day | |
| Daylight | 22.1 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 20.3 cm / 8 in | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Tromsø in May
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.
Shoulder seasonschool holidays in 4 of the markets that fill it, an ordinary month(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).
Fair weatherTromsø's weather peaks June–August, best around July.
Best weatherFair weatherToughest weather
What's on in Tromsø in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Midnight sun
22.1 hours of daylight a day; the sun barely sets.
from the climate normals
Where is Tromsø?
Tromsø in May — FAQ
- Is May a good time to visit Tromsø?
- May in Tromsø: cold, a little rain, with clean air — a great time to visit. It ranks #4 of 12 months for Tromsø on SeasonMap's comfort score (74/100).
- What is the weather like in Tromsø in May?
- In May, Tromsø averages a daily high of 8.7°C and a low of 2.8°C, with about 68 mm of rain over roughly 13.3 rainy days.
- What is the air quality in Tromsø in May?
- Tromsø has a mean US Air Quality Index of about 36 in May.
- Does it snow in Tromsø in May?
- Tromsø sees roughly 20.3 cm of snowfall in May.