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Tromso Monthly Climate Averages
Tromso is located in subarctic climate zone that typically has substantial seasonal variance in temperatures short summer and prolonged and sometimes very cold winter.
To help you choose the best time to travel, you can find climate data below on the weather in Tromso .
Month | t°C day |
t°C night |
mm rain |
daylight |
January | -1.3 | -5.6 | 112 | 1h |
February | -1.4 | -5.9 | 95 | 8.6h |
March | +0.2 | -4.6 | 72 | 12.8h |
April | +3.5 | -1.8 | 66 | 19.5h |
May | +8.2 | +2.3 | 57 | 23.5h |
June | +12.7 | +6.1 | 54 | 24h |
July | +15.8 | +8.9 | 78 | 23.6h |
August | +14.5 | +8 | 87 | 21h |
September | +10 | +4.8 | 111 | 14.3h |
October | +5 | +0.8 | 136 | 9.9h |
November | +1.3 | -2.6 | 98 | 4h |
December | -0.5 | -4.8 | 112 | 1h |
Best time with the soft weather for the sightseeing and long walks in Tromso are July, August.
Temperature in Tromso
The table shows that the hottest months in Tromso are July and August, during which the average daytime temperature reaches +15.8°C and the nighttime temperature falls to +8.9°C.
The coldest months are February and January, when the daily average temperature falls to -1.4°C, and drops to -5.9°C during the night.
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Sea temperature
The month with the highest average monthly temperature in the Norwegian Sea on the beaches of Tromso is August with 11.2 degrees.
The coldest water can be found in March — 4.1degrees C.
Precipitation
The largest amount of precipitation falls on average in October and January, up to 136mm, and the least in June and May — up to 54mm.