April weather forecast
Trondheim, Norway

April in Trondheim marks the official arrival of spring. The temperatures finally reach positive figures from 0°C (32°F) to 6°C (42.8°F), leading to a noticeable increase in outdoor activities. The days also start to extend in length, with daylight hours nearing the 15-hour mark. Although rainfall is a constant companion in April, it does not deter residents and visitors from enjoying the blooming cityscape. The change in weather from March to April is evident, marking the exciting transition from winter to spring.

Temperature

April in Trondheim witnesses a subtle temperature ascent, adjusting from a cold 3°C (37.4°F) in March to a frosty 6°C (42.8°F). The temperature dips to an average of 0°C (32°F) during April nights.

Rainfall

In Trondheim, Norway, in April, during 18 rainfall days, 67mm (2.64") of precipitation is typically accumulated. Throughout the year, there are 239 rainfall days, and 1096mm (43.15") of precipitation is accumulated.

Sea temperature

In Trondheim, the average seawater temperature in April is 6.3°C (43.3°F).
Note: In 6.3°C (43.3°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

In April, the average length of the day is 15h and 2min.
On the first day of April, sunrise is at 06:35 and sunset at 20:08. On the last day of the month, sunrise is at 04:56 and sunset at 21:34 CEST.

Sunshine

In Trondheim, the average sunshine in April is 5h.

UV index

The average daily maximum UV index in April in Trondheim, Norway, is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: A daily maximum UV index of 2 in April translates into the following instructions:
Extended sunlight exposure does not pose significant problems for most people, except for children, infants, and people with fair skin who always need shielding. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.