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Weather & Climate in Tromsø, Norway
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Tromsø has a cool climate with an average annual temperature of 36°F (2°C). Winters average 24°F in January while summers reach 53°F in July. The area gets 267 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 37.9 inches. The area receives 19.7 inches of snow annually, a moderate snowfall amount.
Temperature
24°F Jan (-5°C)
53°F Jul (12°C)
| Annual Average | 36.0°F |
| 33% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 53°F (12°C) |
| Sunny Days | 267 days/yr |
Geography
| Area | 8.2 sq mi (21.2 km²) |
| Population Density | 5,112/sq mi |
| Coordinates | 69.6489°N, 18.9551°W |
| Timezone | Europe/Oslo |
Precipitation & Snow
Air Quality
Earthquake History
15 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Jul 21, 1994 | 142 km NNW of Gryllefjord, Norway | M3.2 | 148 km | 10 km |
| Jan 21, 1992 | 17 km WSW of Gryllefjord, Norway | M2.9 | 98 km | 10 km |
| Nov 26, 1992 | 48 km NNW of Kautokeino, Norway | M2.9 | 137 km | 10 km |
| Apr 25, 2008 | 32 km W of Tromsø, Norway | M2.9 | 33 km | 15 km |
| Jan 21, 1995 | 98 km WNW of Hansnes, Norway | M2.9 | 104 km | 10 km |
| Oct 26, 1992 | 16 km NW of Finnsnes, Norway | M2.8 | 59 km | 10 km |
| Oct 22, 1992 | 16 km NNW of Finnsnes, Norway | M2.7 | 57 km | 10 km |
| Apr 24, 2008 | 30 km W of Tromsø, Norway | M2.7 | 31 km | 10 km |
| Sep 15, 1993 | 57 km NNW of Kiruna, Sweden | M2.6 | 149 km | 10 km |
| Mar 14, 2004 | 17 km ENE of Myre, Norway | M2.6 | 115 km | 10 km |
| Aug 16, 2007 | 7 km W of Tromsø, Norway | M2.6 | 8 km | 6 km |
| Oct 21, 1992 | 88 km N of Andenes, Norway | M2.6 | 122 km | 10 km |
| Mar 24, 1992 | 126 km NNW of Gryllefjord, Norway | M2.6 | 136 km | 10 km |
| Nov 27, 1993 | 7 km NE of Sjøvegan, Norway | M2.5 | 90 km | 5 km |
| Oct 19, 1992 | 15 km NW of Finnsnes, Norway | M2.5 | 59 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tsunami History
3 tsunamis recorded within 500 km. Highest wave on record: 4.0 m (13 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1959 | NORTHERN NORWAY | Meteorological | 4.0 m | 9 | 78 km |
| 2015 | NORTHERN NORWAY | Meteorological | - | - | 78 km |
| 1810 | NORTHERN NORWAY | Meteorological | - | 14 | 52 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 3.9 in | Coldest |
| February | 24°F (-5°C) | 3.2 in | |
| March | 27°F (-3°C) | 2.6 in | |
| April | 32°F (-0°C) | 2.2 in | |
| May | 40°F (4°C) | 2.1 in | |
| June | 48°F (9°C) | 2.0 in | Driest |
| July | 53°F (12°C) | 2.7 in | Warmest |
| August | 51°F (11°C) | 3.3 in | |
| September | 44°F (6°C) | 3.6 in | |
| October | 36°F (2°C) | 4.7 in | Wettest |
| November | 29°F (-2°C) | 3.6 in | |
| December | 25°F (-4°C) | 4.1 in |
Tromsø has a seasonal temperature swing of 30°F / from 24°F in January to 53°F in July. Total annual precipitation is 37.9 inches, with October being the wettest month (4.7") and June the driest (2.0").