October weather forecast
Trondheim, Norway

October is saturated with crisp autumn air and rapidly shortening days in Trondheim. The drop in temperatures continues from September, now ranging between 3°C (37.4°F) and 8°C (46.4°F). The already high rainfall in September continues its course into October, keeping the city relatively moist. The daylight hours continue to wane, with the days becoming increasingly shorter. As the month ends, all signs point towards this: winter is coming.

Temperature

The onset of October is marked by a minor decrease in temperature, transitioning from a cool 12°C (53.6°F) in September to a frosty 8°C (46.4°F). In Trondheim, nights during October observe an average temperature decrease to a cold 3°C (37.4°F).

Rainfall

In Trondheim, Norway, during October, the rain falls for 23 days and regularly aggregates up to 129mm (5.08") of precipitation. Throughout the year, there are 239 rainfall days, and 1096mm (43.15") of precipitation is accumulated.

Sea temperature

In Trondheim, in October, the average water temperature is 10.9°C (51.6°F).
Note: Taking a dip in 10.9°C (51.6°F) can be perilous. Submersion in temperatures under 10°C (50°F) triggers severe cold shock accompanied by hyperventilation.

Daylight

The average length of the day in October is 9h and 49min.
On the first day of October, sunrise is at 07:28 and sunset at 18:47 CEST. On the last day of the month, sunrise is at 07:56 and sunset at 16:08 CET.
Note: On Sunday, 27. October 2024, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 02:00; consequently, the time zone reverts from CET to CEST.

Sunshine

In October, the average sunshine in Trondheim, Norway, is 2h.

UV index

The average daily maximum UV index in October in Trondheim is 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: An average UV index of 1 in October transforms into this advice:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.