December weather forecast
Trondheim, Norway

December marks the arrival of the long, dark Norwegian winter in Trondheim. Temperatures drop down to between -4°C (24.8°F) and 1°C (33.8°F) and daylight hours barely surpassing the 5-hour mark. The loss of daylight hours is accompanied by a surge in rainfall, making December a rather cold and damp month. Despite the challenging weather conditions December culminates in a festive atmosphere; the city turns into a winter wonderland, welcoming both locals and visitors to embrace winter's icy charm.

Temperature

An average high-temperature of a still cold 1°C (33.8°F) marks December in Trondheim, exhibiting a close resemblance to the conditions in November. During December, the nighttime temperatures align closely with the daytime averages, measuring a subzero cold -4°C (24.8°F).

Rainfall

In Trondheim, Norway, in December, during 24 rainfall days, 123mm (4.84") of precipitation is typically accumulated. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm (43.15") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Trondheim, Norway, is 7.3°C (45.1°F).
Note: In 7.3°C (45.1°F), even brief exposure to 13°C (55.4°F) feels biting, and anything less than 10°C (50°F) risks cold shock and impaired breathing, considering one's health.

Daylight

The month with the shortest days in Trondheim is December, with an average of 4h and 42min of daylight.
On the first day of the month, sunrise is at 09:28 and sunset at 14:46. On the last day of December, in Trondheim, sunrise is at 09:59 and sunset at 14:43 CET.

Sunshine

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

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 0. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 0 in December transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.