Tromsø
Norway
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Tromsø, Norway

An aerial view of the bridge connecting the city of Tromsø, Norway, and a distant view of snow-peaked mountains
An aerial view of the bridge connecting the city of Tromsø, Norway, and a distant view of snow-peaked mountains
January, like December, is another subzero cold winter month in Tromsø, Norway, with average temperature fluctuating between -6.5°C (20.3°F) and -2.2°C (28°F). With an average high-temperature of -2.2°C (28°F) and an average low-temperature of -6.5°C (20.3°F), January is the coldest month. Weather in January »

The last month of the winter, February, is also a subzero cold month in Tromsø, Norway, with average temperature fluctuating between -6.5°C (20.3°F) and -2.1°C (28.2°F). In February, the average high-temperature is almost the same as in January - a still subzero cold -2.1°C (28.2°F). Weather in February »

March, the first month of the spring, in Tromsø, is still a freezing cold month, with average temperature ranging between min -5.1°C (22.8°F) and max -0.4°C (31.3°F). In March, the average high-temperature is relatively the same as in February - a still freezing cold -0.4°C (31.3°F). Weather in March »

April in Tromsø, Norway, is a cold spring month, with average temperature fluctuating between -2.3°C (27.9°F) and 2.7°C (36.9°F). In Tromsø, the average high-temperature slightly increases, from a subzero cold -0.4°C (31.3°F) in March, to a cold 2.7°C (36.9°F). Weather in April »

The last month of the spring, May, is a frosty month in Tromsø, Norway, with temperature in the range of an average high of 7.5°C (45.5°F) and an average low of 2°C (35.6°F). In Tromsø, the average high-temperature slightly increases, from a cold 2.7°C (36.9°F) in April, to a chilly 7.5°C (45.5°F). Weather in May »

June, the first month of the summer, in Tromsø, is a fresh month, with average temperature ranging between min 6.1°C (43°F) and max 12.5°C (54.5°F). In Tromsø, the average high-temperature rises, from a frosty 7.5°C (45.5°F) in May, to a fresh 12.5°C (54.5°F). Weather in June »

July in Tromsø, Norway, is a mild summer month, with average temperature fluctuating between 15.3°C (59.5°F) and 8.7°C (47.7°F). The warmest month is July, with an average high-temperature of 15.3°C (59.5°F) and an average low-temperature of 8.7°C (47.7°F). Weather in July »

The last month of the summer, August, is also a moderate month in Tromsø, Norway, with average temperature fluctuating between 13.9°C (57°F) and 7.8°C (46°F). In August, the average high-temperature is essentially the same as in July - a still moderate 13.9°C (57°F). Weather in August »

September, the first month of the autumn, in Tromsø, is also a frosty month, with average temperature ranging between max 9.3°C (48.7°F) and min 4.5°C (40.1°F). In September, the average high-temperature marginally drops, from a mild 13.9°C (57°F) in August, to a chilly 9.3°C (48.7°F). Weather in September »

October, the same as September, is another cold autumn month in Tromsø, Norway, with average temperature fluctuating between 4.7°C (40.5°F) and 0.7°C (33.3°F). In Tromsø, the average high-temperature in October marginally drops, from a frosty 9.3°C (48.7°F) in September, to a cold 4.7°C (40.5°F). Weather in October »

November, the last month of the autumn, in Tromsø, is also a wintry month, with average temperature ranging between max 0.7°C (33.3°F) and min -3°C (26.6°F). In November, the average high-temperature marginally drops, from 4.7°C (40.5°F) in October, to a still cold 0.7°C (33.3°F). Weather in November »

The first month of the winter, December, is still a freezing cold month in Tromsø, Norway, with average temperature ranging between max -1.3°C (29.7°F) and min -5.4°C (22.3°F). In Tromsø, Norway, the average high-temperature in December is essentially the same as in November - a freezing cold -1.3°C (29.7°F). Weather in December »

What is the coldest month in Tromsø?

January is the coldest month in Tromsø, Norway, with an average high-temperature of -2.2°C (28°F) and an average low-temperature of -6.5°C (20.3°F).

How much does it rain in Tromsø?

In Tromsø, Norway, during the entire year, the rain falls for 159.8 days and collects up to 1031mm (40.6") of precipitation.

What is the month with the lowest UV index in Tromsø?

January, February, October through December, with an average maximum UV index of 0, are months with the lowest UV index in Tromsø.

What is the month with the coldest sea water in Tromsø?

With an average sea temperature of 4.2°C (39.6°F), March is the month with the coldest seawater in Tromsø.

What is the driest month in Tromsø?

May is the month with the least rainfall in Tromsø. Rain falls for 9.9 days and accumulates 48mm (1.9") of precipitation.

What are the months with the highest UV index in Tromsø?

Months with the highest UV index in Tromsø are May through July, with an average maximum UV index of 3.

When are the longest days in Tromsø?

June has the longest days of the year in Tromsø, with an average of 24h of daylight.

What month has the most sunshine in Tromsø?

The month with the most sunshine in Tromsø is June, with an average of 7.4h of sunshine.

What is the warmest month in Tromsø?

With an average high-temperature of 15.3°C (59.5°F) and an average low-temperature of 8.7°C (47.7°F), July is the warmest month.

What is the month with the warmest sea water in Tromsø?

The month with the warmest seawater is August, with an average sea temperature of 11.3°C (52.3°F).

What is the wettest month in Tromsø?

The month with the most rainfall is October when the rain falls for 17.1 days and typically aggregates up to 131mm (5.2") of precipitation.

What is the month with the shortest days in Tromsø?

December has the shortest days of the year in Tromsø, Norway, with an average of 0h of daylight.

What is the month with the least sunshine in Tromsø?

The month with the least sunshine in Tromsø is December, with an average of 0h of sunshine.
Average temperature - Tromsø, Norway
Average rainfall - Tromsø, Norway
Average rainfall days - Tromsø, Norway

The month with the highest number of rainy days is October (17.1 days).
The month with the lowest number of rainy days is May (9.9 days).

Average sea temperature - Tromsø, Norway

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 / Average sunshine - Tromsø, Norway
Average UV index - Tromsø, Norway