Monthly weather forecast and climate
Trondheim, Norway

Weather in January

January, like December, in Trondheim, Norway, is a wintry winter month, with average temperature fluctuating between -5°C (23°F) and 0°C (32°F). January and February, with an average high-temperature of 0°C (32°F), are the coldest months. Weather in January »

Weather in February

February, the last month of the winter, in Trondheim, is also a wintry month, with average temperature varying between 0°C (32°F) and -5°C (23°F). January and February, with an average high-temperature of 0°C (32°F), are the coldest months. Weather in February »

Weather in March

March, the first month of the spring, in Trondheim, is also a wintry month, with average temperature varying between -3°C (26.6°F) and 3°C (37.4°F). In Trondheim, the average high-temperature in March marginally rises, from 0°C (32°F) in February, to a still wintry 3°C (37.4°F). Weather in March »

Weather in April

April is a frosty spring month in Trondheim, Norway, with average temperature fluctuating between 6°C (42.8°F) and 0°C (32°F). In April, the average high-temperature marginally rises, from a cold 3°C (37.4°F) in March, to a frosty 6°C (42.8°F). Weather in April »

Weather in May

May, the last month of the spring, in Trondheim, is a fresh month, with average temperature fluctuating between 12°C (53.6°F) and 4°C (39.2°F). In May, the average high-temperature increases, from a frosty 6°C (42.8°F) in April, to a fresh 12°C (53.6°F). Weather in May »

Weather in June

The first month of the summer, June, is an enjoyable month in Trondheim, Norway, with temperature in the range of an average low of 8°C (46.4°F) and an average high of 16°C (60.8°F). In June, the average high-temperature marginally rises, from a fresh 12°C (53.6°F) in May, to a comfortable 16°C (60.8°F). Weather in June »

Weather in July

July, the same as June, is another comfortable summer month in Trondheim, Norway, with temperature in the range of an average low of 9°C (48.2°F) and an average high of 16°C (60.8°F). In July, the average high-temperature remains the same as in June - a still comfortable 16°C (60.8°F). Weather in July »

Weather in August

August, the last month of the summer, in Trondheim, is also an enjoyable month, with temperature in the range of an average high of 17°C (62.6°F) and an average low of 9°C (48.2°F). With an average high-temperature of 17°C (62.6°F) and an average low-temperature of 9°C (48.2°F), August is the warmest month. Weather in August »

Weather in September

The first month of the autumn, September, is also a fresh month in Trondheim, Norway, with average temperature fluctuating between 12°C (53.6°F) and 6°C (42.8°F). In September, the average high-temperature drops, from an enjoyable 17°C (62.6°F) in August, to a fresh 12°C (53.6°F). Weather in September »

Weather in October

October, like September, is a frosty autumn month in Trondheim, Norway, with average temperature ranging between max 8°C (46.4°F) and min 3°C (37.4°F). In October, the average high-temperature marginally drops, from a fresh 12°C (53.6°F) in September, to a chilly 8°C (46.4°F). Weather in October »

Weather in November

The last month of the autumn, November, is also a wintry month in Trondheim, Norway, with average temperature varying between 3°C (37.4°F) and -2°C (28.4°F). In Trondheim, the average high-temperature decreases, from a chilly 8°C (46.4°F) in October, to a cold 3°C (37.4°F). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Trondheim, Norway, with temperature in the range of an average high of 1°C (33.8°F) and an average low of -4°C (24.8°F). In Trondheim, Norway, the average high-temperature in December is relatively the same as in November - a still wintry 1°C (33.8°F). Weather in December »
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FAQ

What are the coldest months in Trondheim?

The coldest months are January and February, with an average high-temperature of 0°C (32°F).

How many days does it rain in Trondheim?

In Trondheim, Norway, during the entire year, the rain falls for 239 days and collects up to 1096mm (43.15") of precipitation.

What is the month with the least sunshine in Trondheim?

January and December, with an average of 0h of sunshine, are months with the least sunshine in Trondheim, Norway.

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

January, February, November and December, with an average maximum UV index of 0, are months with the lowest UV index in Trondheim.

When is the sea coldest in Trondheim?

March is the month with the coldest seawater in Trondheim, Norway, with an average sea temperature of 4.9°C (40.8°F).

What is the driest month in Trondheim?

May is the month with the least rainfall. Rain falls for 15 days and accumulates 53mm (2.09") of precipitation.

What are the months with the most sunshine in Trondheim?

Months with the most sunshine in Trondheim are May and June, with an average of 7h of sunshine.

When are the longest days in Trondheim?

The month with the longest days in Trondheim is June, with an average of 20.4h of daylight.

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

June and July, with an average maximum UV index of 4, are months with the highest UV index.

What is the warmest month in Trondheim?

August is the warmest month, with an average high-temperature of 17°C (62.6°F) and an average low-temperature of 9°C (48.2°F).

What month is the sea warmest in Trondheim?

The month with the warmest seawater is August, with an average sea temperature of 14.8°C (58.6°F).

What is the wettest month in Trondheim?

September is the month with the most rainfall. Rain falls for 24 days and accumulates 133mm (5.24") of precipitation.

What is the month with the shortest days in Trondheim?

The month with the shortest days in Trondheim is December, with an average of 4.7h of daylight.

Average rainfall
Trondheim, Norway

Average rainfall - Trondheim, Norway

The wettest month (with the highest rainfall) is September (133mm).
The driest month (with the least rainfall) is May (53mm).

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Average rainfall days
Trondheim, Norway

Average rainfall days - Trondheim, Norway

Months with the highest number of rainy days are September and December (24 days).
The month with the least rainy days is May (15 days).

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Average sea temperature
Trondheim, Norway

Average sea temperature - Trondheim, Norway

The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

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Average daylight / Average sunshine
Trondheim, Norway

Average daylight / Average sunshine - Trondheim, Norway

The month with the longest days is June (Average daylight: 20.4h).
The month with the shortest days is December (Average daylight: 4.7h).

Months with the most sunshine are May and June (Average sunshine: 7h).
Months with the least sunshine are January and December (Average sunshine: 0).

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Average UV index
Trondheim, Norway

Average UV index - Trondheim, Norway

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).

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