January weather forecastTromsø, Norway

January
Weather in January
The beginning of the year in Tromsø, Norway, is marked with one of the coldest and snowiest months. Subzero temperatures and regular snowfall make this northern city a snowy winter wonderland. Precipitation in the form of snow reaches 381mm (15"), significantly higher than most other months of the year. The limited sunlight and prevailing winter conditions contribute to frosted landscapes, with the notion of daylight becoming a rare luxury. January's weather encourages activities such as cross-country skiing, snowmobiling, or chasing breathtaking Northern Lights.Temperature
January is the month that records the lowest temperatures, with averages ranging from a high of -4.5°C (23.9°F) to a low of -8.3°C (17.1°F).Humidity
In Tromsø, Norway, the average relative humidity in January is 84%.Rainfall
In Tromsø, during January, the rain falls for 5.4 days and regularly aggregates up to 82mm (3.23") of precipitation. Throughout the year, in Tromsø, there are 148.1 rainfall days, and 987mm (38.86") of precipitation is accumulated.Snowfall
Months with snowfall in Tromsø are January through June, September through December. In January, in Tromsø, it is snowing for 15.5 days. Throughout January, 381mm (15") of snow is accumulated. In Tromsø, during the entire year, snow falls for 120.1 days and aggregates up to 2826mm (111.26") of snow.Sea temperature
In January, the average sea temperature is 5.2°C (41.4°F).Note: Staying in 5.2°C (41.4°F) waters for just a few moments at 13°C (55.4°F) can be harrowing, and below 10°C (50°F) poses breathing and cold shock risks, depending on individual tolerance.
Daylight
In January, the average length of the day is 1h and 47min.On the first day of January in Tromsø, Norway, sunrise is at 01:00 and sunset at 01:00. On the last day of the month, sunrise is at 09:31 and sunset at 14:23 CET.
Sunshine
In January, the average sunshine is 1h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 1 in January translates into the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Tromsø, Norway
- Average high temperature in January: -4.5°C
The warmest month (with the highest average high temperature) is July (13.9°C).
The month with the lowest average high temperature is January (-4.5°C).
- Average low temperature in January: -8.3°C
The month with the highest average low temperature is July (8.7°C).
The coldest month (with the lowest average low temperature) is February (-9.1°C).
Average pressure in January
Tromsø, Norway
- Average pressure in January: 1004.9mbar
The month with the highest atmospheric pressure is May (1013.8mbar).
The month with the lowest atmospheric pressure is December (1000.7mbar).
Average wind speed in January
Tromsø, Norway
- Average wind speed in January: 16.9km/h
The windiest month (with the highest average wind speed) is March (17km/h).
The calmest month (with the lowest average wind speed) is July (9.5km/h).
Average humidity in January
Tromsø, Norway
- Average humidity in January: 84%
The month with the highest relative humidity is April (89%).
The month with the lowest relative humidity is July (79%).
Average rainfall in January
Tromsø, Norway
- Average rainfall in January: 82mm
The wettest month (with the highest rainfall) is March (103mm).
The driest month (with the least rainfall) is July (55mm).
Average rainfall days in January
Tromsø, Norway
- Average rainfall days in January: 5.4 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in January
Tromsø, Norway
- Average snowfall in January: 381mm
The month with the highest snowfall is March (569mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in January
Tromsø, Norway
- Average snowfall days in January: 15.5 days
The month with the highest number of snowfall days is March (22.9 days).
The months with the least snowfall days are July and August (0 days).
Average sea temperature in January
Tromsø, Norway
- Average sea temperature in January: 5.2°C
The best month for swimming (with the highest average sea temperature) is August (11.3°C).
The coldest month (with the lowest average sea temperature) is March (4.2°C).
Average daylight in January /
Average sunshine in January
Tromsø, Norway
- Average daylight in January: 1h and 48min
The month with the longest days is August (Average daylight: 18h and 0min).
The months with the shortest days are June and December (Average daylight: 0h and 0min).
- Average sunshine in January: 1h and 0min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 24min).
Average sunshine days in January
Tromsø, Norway
- Average sunshine days in January: 13.2 days
The month with the most sunshine days is January (13.2 days).
The month with the least sunshine days is March (6.2 days).
Average UV index in January
Tromsø, Norway
- Average UV index in January: 1
The month with the highest UV index is July (UV index 4).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).
Average cloud cover in January
Tromsø, Norway
- Average cloud cover in January: 60
The month with the most cloud cover is March (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 58).
Average visibility in January
Tromsø, Norway
- Average visibility in January: 8km
The months with the highest visibility are June, July, August, September, October and November (9km).
The month with the lowest visibility is April (7km).





