Europe › Norway › Tromso
30-year normals (1991-2020)
Tromso has a temperate climate, classified as ET in the Köppen system. The warmest month is July with an average high of 16°C, while the coldest month is January with lows dropping to -11°C. The annual temperature range of 27°C reflects moderate seasonal variation.
The driest month is February with only 14 rain days and 94mm of precipitation. For travellers, February through to the following month typically offers the best balance of warm temperatures and dry conditions. Average humidity ranges from 65% to 65% throughout the year.
Based on temperature and rainfall data, the best months to visit Tromso are July, August, June. These months offer the most comfortable temperatures with relatively low rainfall, ideal for sightseeing and outdoor activities.
Full Best Time to Visit GuideWarmest Month
16°C
July
Coldest Month
-11°C
January
Driest Month
14 days
February
Annual Range
27°C
-11° to 16°
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | -6°C | -11°C | 15 | 1h | View |
| February | -6°C | -10°C | 14 | 3h | View |
| March | -3°C | -7°C | 16 | 6h | View |
| April | 2°C | -3°C | 15 | 10h | View |
| May | 7°C | 1°C | 16 | 12h | View |
| June | 12°C | 6°C | 15 | 12h | View |
| July | 16°C | 10°C | 15 | 11h | View |
| August | 15°C | 9°C | 16 | 9h | View |
| September | 10°C | 6°C | 17 | 6h | View |
| October | 4°C | 0°C | 17 | 4h | View |
| November | -1°C | -6°C | 15 | 1h | View |
| December | -4°C | -9°C | 16 | 1h | View |
January
15 rain days, 1h sun
February
14 rain days, 3h sun
March
16 rain days, 6h sun
April
15 rain days, 10h sun
May
16 rain days, 12h sun
June
15 rain days, 12h sun
July
15 rain days, 11h sun
August
16 rain days, 9h sun
September
17 rain days, 6h sun
October
17 rain days, 4h sun
November
15 rain days, 1h sun
December
16 rain days, 1h sun
Tromso in July
Data Sources for Tromso
Climate normals represent 30-year averages (1991-2020). Individual years may vary.