January weather forecast
Trondheim, Norway

January in Trondheim, Norway, ushers in a new year with the lowest temperatures of the year, ranging from a frigid -5°C to a high of 0°C. The days are short and often quite dark, with daylight hours struggling to surpass the 6-hour mark, contributing to the chilly temperatures. Weather conditions remain largely consistent with December, with cold temperatures and relatively high rainfall. As the month progresses, the weather conditions remain consistent. Despite winter's frosty grip, life in Trondheim does not come to a halt, with residents embracing the colder months through various winter activities.

Temperature

Trondheim sees its lowest temperatures during January and February, with an average high-temperature of 0°C.

Rainfall

In January, in Trondheim, Norway, the rain falls for 22 days. Throughout January, 100mm of precipitation is accumulated. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm of precipitation is accumulated.

Sea temperature

In Trondheim, in January, the average water temperature is 6.1°C.
Note: Dipping into 6.1°C below 10°C is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C can be jarring.

Daylight

In January, the average length of the day in Trondheim, Norway, is 5h and 51min.
On the first day of January in Trondheim, sunrise is at 09:59 and sunset at 14:44. On the last day of the month, sunrise is at 08:56 and sunset at 16:06 CET.

Sunshine

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

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 health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 0 during January translates into the following guidance:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.