Tromsø weather in May
May in Tromsø: cold, rainy, with clean air — a good time to visit.
#5 of 12 months in Tromsø · #485 of 604 destinations to visit in May · comfort 68/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Tromsø climate normals — May
| Daytime high | 6°C / 44°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 34°F | |
| Feels like (high) | 3°C / 37°F | |
| Rainfall | 114 mm / 4.5 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 84% | 💦 very humid |
| Dew point | 2°C / 36°F | |
| Sunshine | 10.5 h/day | |
| Daylight | 22.1 h | |
| Wind | 14 km/h / 8 mph | |
| Snowfall | 28.8 cm / 11.3 in | |
| Air quality (US AQI) | 36 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Tromsø in May — FAQ
- Is May a good time to visit Tromsø?
- May in Tromsø: cold, rainy, with clean air — a good time to visit. It ranks #5 of 12 months for Tromsø on SeasonMap's comfort score (68/100).
- What is the weather like in Tromsø in May?
- In May, Tromsø averages a daily high of 6.4°C and a low of 1.2°C, with about 113.7 mm of rain over roughly 17.4 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 28.8 cm of snowfall in May.