Norway
Tromsø in May: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Tromsø in May is climatically mixed. The average daily high is around 6 °C, and the sea is about 6 °C. With about 17 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
21/100 · #4
Warmth
#5
Dryness
#2
Sun
#2
Sea warmth
#8
Published best categories: none
Tromsø · MayPhoto: Bernt Rostad from Oslo, Norway · CC BY 2.0Climate facts
- Average high
- 6 °C
- Average low
- 0 °C
- Sea
- 6 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 86 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 0 | -5 | 18 | 91 | 3.8 | 92 | 1.9 | 4 | 16 |
| May (selected) | 6 | 0 | 17 | 94 | 5.5 | 86 | 1.4 | 6 | 21 |
| June | 12 | 5 | 18 | 99 | 6.1 | 80 | 0.8 | 8 | 28 |
How do the previous and next months compare?
Baseline: May (21/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | -5 | -5.7 °C | -5.3 °C | +0.3 | -2.9 mm | -1.7 h | +5.7 % | +0.5 m/s | -1.4 °C |
| June | +7 | +5.9 °C | +5 °C | +0.5 | +5.2 mm | +0.6 h | -5.7 % | -0.6 m/s | +2.2 °C |
All twelve months in context
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Where to stay in Tromsø
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Useful next decisions
Frequently asked questions
How warm is Tromsø in May?
The average daily high is around 6 °C, with an average daily low of about 0 °C.
Can you swim in Tromsø in May?
The sea is about 6 °C (cold).
Does it rain a lot in Tromsø in May?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 94 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Tromsø?
No month in Tromsø reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.