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 and 8°C. 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

With the beginning of October, the average high-temperature in Trondheim shows a small decrease, transitioning from a fresh 12°C in September to a chilly 8°C. Trondheim's October nights demonstrate minimal variation from the daytime temperatures, with an average of 3°C.

Rainfall

In Trondheim, in October, it is raining for 23 days, with typically 129mm of accumulated precipitation. Throughout the year, in Trondheim, there are 239 rainfall days, and 1096mm of precipitation is accumulated.

Sea temperature

In October, the average sea temperature is 10.9°C.
Note: To swim in 10.9°C at less than 10°C, ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 13°C is not welcoming.

Daylight

In October, the average length of the day in Trondheim, Norway, is 9h and 49min.
On the first day of the month, sunrise is at 07:26 and sunset at 18:50 CEST. On the last day of October, sunrise is at 07:53 and sunset at 16:10 CET.
Note: On Sunday, 29. October 2023, at 03:00, Daylight Saving Time ends, and the time zone changes from CEST to CET. Daylight Saving Time starts again on Sunday, 31. March 2024, at 02:00; consequently, the time zone reverts from CET to CEST.

Sunshine

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

UV index

The average daily maximum UV index in October is 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 1 in October leads to these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.