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Hourly Forecast
Daylight Hours
07:23
Sunrise
18:54
Sunset
Moon
Waxing Gibbous
18:40
Moonrise
05:10
Moonset
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View stargazing scoreWeather in Trondheim today, September 25, 2026
Rain features in Trondheim on September 25, 2026, so keep waterproofs handy through the day. The damp theme is strongest where shower chances rise. Cloud leads the morning, peaking close to 100% near 07:00. Sunshine has little room until later in the day.
Temperatures climb from an overnight low near 6°C toward a daytime high of about 12°C. Relative humidity sits between 74% and 93%, reaching its peak around 23:00. Winds stay light, near 2.4 km/h by 10:00, so the day feels still more than breezy.
Through the afternoon wet weather remains a factor, with rain chances near 68% around 21:00. Cloud also stays substantial, close to 100% near 13:00. Visibility holds near 28.9 km, though it can fall to 13.9 km. Daylight runs from 07:23 to 18:54, lasting 11 hours 30 minutes of sunlight today.
Overall, Trondheim on September 25, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 68% and the high sits around 12°C.
Frequently asked questions about weather in Trondheim
How warm does it get in Trondheim?
The warmest month in Trondheim is July, with average high temperatures of 20°C. The average temperature during this period is around 16°C.
How cold does it get in Trondheim?
The coldest month in Trondheim is January, with average low temperatures of -4°C. The average temperature during this period is around -2°C.
What is the wettest time of year in Trondheim?
The wettest month in Trondheim is October, with an average of 124mm of precipitation.
What is the driest time of year in Trondheim?
The driest month in Trondheim is May, with an average of 77mm of precipitation.
