Trondheim
Norway
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Trondheim, Norway

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  • The average high temperature in December: 1°C

The warmest month (with the highest average high temperature) is August (17°C).
Months with the lowest average high temperature are January and February (0°C).

  • The average low temperature in December: -4°C

Months with the highest average low temperature are July and August (9°C).
Coldest months (with the lowest average low temperature) are January and February (-5°C).

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  • The average rainfall in December: 123mm

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

  • The average rainfall days in December: 24 days

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

  • The average sea temperature in December: 7.3°C

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).

  • The average daylight in December: 5h

The month with the longest days is June (Average daylight: 20h).
The month with shortest days is December (Average daylight: 5h).

  • The average sunshine in December: 0h

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

  • The average UV index in December: 0

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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