Monthly weather forecast and climate
Tromsø, Norway

The bridge connecting the city of Tromsø, Norway
The bridge connecting the city of Tromsø, Norway

Weather in January

January, like December, is another subzero cold winter month in Tromsø, Norway, with temperature in the range of an average high of -4.5°C (23.9°F) and an average low of -8.3°C (17.1°F). The coldest month is January, with an average high-temperature of -4.5°C (23.9°F) and an average low-temperature of -8.3°C (17.1°F). Weather in January »

Weather in February

February, the last month of the winter, in Tromsø, is another freezing cold month, with average temperature fluctuating between -4.3°C (24.3°F) and -9.1°C (15.6°F). In February, the average high-temperature is relatively the same as in January - a still freezing cold -4.3°C (24.3°F). Weather in February »

Weather in March

The first month of the spring, March, is also a subzero cold month in Tromsø, Norway, with average temperature ranging between max -2.2°C (28°F) and min -7.3°C (18.9°F). In Tromsø, the average high-temperature is essentially the same as in February - a still freezing cold -2.2°C (28°F). Weather in March »

Weather in April

April is a cold spring month in Tromsø, Norway, with temperature in the range of an average high of 0.7°C (33.3°F) and an average low of -4.2°C (24.4°F). In Tromsø, Norway, the average high-temperature in April is relatively the same as in March - a cold 0.7°C (33.3°F). Weather in April »

Weather in May

The last month of the spring, May, is another cold month in Tromsø, Norway, with average temperature fluctuating between 0.8°C (33.4°F) and 5°C (41°F). In Tromsø, the average high-temperature marginally rises, from 0.7°C (33.3°F) in April, to a still cold 5°C (41°F). Weather in May »

Weather in June

The first month of the summer, June, is a frosty month in Tromsø, Norway, with average temperature ranging between max 9.3°C (48.7°F) and min 5.4°C (41.7°F). In June, the average high-temperature marginally rises, from a wintry 5°C (41°F) in May, to a frosty 9.3°C (48.7°F). Weather in June »

Weather in July

July in Tromsø, Norway, is a mild summer month, with temperature in the range of an average low of 8.7°C (47.7°F) and an average high of 13.9°C (57°F). July is the warmest month, with an average high-temperature of 13.9°C (57°F) and an average low-temperature of 8.7°C (47.7°F). Weather in July »

Weather in August

August, the last month of the summer, in Tromsø, is another mild month, with temperature in the range of an average low of 7.7°C (45.9°F) and an average high of 13.1°C (55.6°F). In August, the average high-temperature is practically the same as in July - a still moderate 13.1°C (55.6°F). Weather in August »

Weather in September

September, the first month of the autumn, in Tromsø, is still a chilly month, with average temperature varying between 9.7°C (49.5°F) and 5.4°C (41.7°F). In Tromsø, the average high-temperature slightly decreases, from a moderate 13.1°C (55.6°F) in August, to a chilly 9.7°C (49.5°F). Weather in September »

Weather in October

October, like September, in Tromsø, Norway, is another cold autumn month, with temperature in the range of an average high of 3.2°C (37.8°F) and an average low of 0.5°C (32.9°F). In Tromsø, the average high-temperature in October decreases, from a chilly 9.7°C (49.5°F) in September, to a wintry 3.2°C (37.8°F). Weather in October »

Weather in November

November, the last month of the autumn, in Tromsø, is another freezing cold month, with average temperature fluctuating between -0.1°C (31.8°F) and -2.9°C (26.8°F). In November, the average high-temperature marginally drops, from a cold 3.2°C (37.8°F) in October, to a subzero cold -0.1°C (31.8°F). Weather in November »

Weather in December

The first month of the winter, December, is still a freezing cold month in Tromsø, Norway, with average temperature varying between -6°C (21.2°F) and -2.5°C (27.5°F). In December, the average high-temperature is relatively the same as in November - a still freezing cold -2.5°C (27.5°F). Weather in December »
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FAQ

What is the coldest month in Tromsø?

January is the coldest month in Tromsø, Norway, with an average high-temperature of -4.5°C (23.9°F) and an average low-temperature of -8.3°C (17.1°F).

How many days does it rain in Tromsø?

Throughout the year, there are 148.1 rainfall days, and 987mm (38.86") of precipitation is accumulated.

When does it snow in Tromsø?

Months with snowfall are January through June, September through December.

How much does it snow in Tromsø?

Throughout the year, in Tromsø, Norway, there are 120.1 snowfall days, and 2826mm (111.26") of snow is accumulated.

When is the lowest UV index in Tromsø?

January through April, October through December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the wettest month in Tromsø?

The month with the most rainfall in Tromsø, Norway, is March when the rain falls for 7.2 days and typically aggregates up to 103mm (4.06") of precipitation.

What is the snowiest month in Tromsø?

March is the month with the most snowfall. Snow falls for 22.9 days and accumulates 569mm (22.4") of snow.

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

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

What is the most humid month in Tromsø?

With an average relative humidity of 89%, April is the most humid month.

When are the longest days in Tromsø?

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

What is the warmest month in Tromsø?

July is the warmest month, with an average high-temperature of 13.9°C (57°F) and an average low-temperature of 8.7°C (47.7°F).

What is the least humid month in Tromsø?

July is the least humid month, with an average relative humidity of 79%.

What is the driest month in Tromsø?

The month with the least rainfall is July when the rain falls for 18.3 days and typically collects 55mm (2.17") of precipitation.

When it does not snow in Tromsø?

July and August are months without snowfall in Tromsø, Norway.

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

With an average maximum UV index of 4, July is the month with the highest UV index.

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

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

What month has the most sunshine in Tromsø?

August has the most sunshine of the year, with an average of 8h of sunshine.

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?

With an average of 0.4h of sunshine, December has the least sunshine of the year in Tromsø.

Average pressure
Tromsø, Norway

Average pressure - Tromsø, Norway

The month with the highest atmospheric pressure is May (1013.8mbar).
The month with the lowest atmospheric pressure is December (1000.7mbar).

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Average wind speed
Tromsø, Norway

Average wind speed - Tromsø, Norway

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).

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Average rainfall
Tromsø, Norway

Average rainfall - Tromsø, Norway

The wettest month (with the highest rainfall) is March (103mm).
The driest month (with the least rainfall) is July (55mm).

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Average rainfall days
Tromsø, Norway

Average rainfall days - Tromsø, Norway

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).

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Average snowfall
Tromsø, Norway

Average snowfall - Tromsø, Norway

The month with the highest snowfall is March (569mm).
Months with the least snowfall are July and August (0mm).

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Average snowfall days
Tromsø, Norway

Average snowfall days - Tromsø, Norway

The month with the highest number of snowfall days is March (22.9 days).
Months with the least snowfall days are July and August (0 days).

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Average sea temperature
Tromsø, Norway

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).

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Average daylight / Average sunshine
Tromsø, Norway

Average daylight / Average sunshine - Tromsø, Norway

The month with the longest days is June (Average daylight: 24h).
The month with the shortest days is December (Average daylight: 0h).

The month with the most sunshine is August (Average sunshine: 8h).
The month with the least sunshine is December (Average sunshine: 0.4h).

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Average sunshine days
Tromsø, Norway

Average sunshine days - Tromsø, Norway

The month with the most sunshine days is January (13.2 days).
The month with the least sunshine days is March (6.2 days).

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Average UV index
Tromsø, Norway

Average UV index - Tromsø, Norway

The month with the highest UV index is July (UV index 4).
Months with the lowest UV index are January, February, March, April, October, November and December (UV index 1).

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Average visibility
Tromsø, Norway

Average visibility - Tromsø, Norway

Months with the highest visibility are June, July, August, September, October and November (9km).
The month with the lowest visibility is April (7km).

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