April weather forecast
Trondheim, Norway

April in Trondheim marks the official arrival of spring. The temperatures finally reach positive figures from 0°C to 6°C, 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

Trondheim observes a slight ascent in average high-temperatures during April, adjusting from a cold 3°C in March to a frosty 6°C. In the month of April, Trondheim witnesses a consistent average low-temperature of 0°C.

Rainfall

In Trondheim, in April, during 18 rainfall days, 67mm of precipitation is typically accumulated. In Trondheim, during the entire year, the rain falls for 239 days and collects up to 1096mm of precipitation.

Sea temperature

In April, the average sea temperature is 6.3°C.
Note: Swimming in 6.3°C is considered life-threatening. Even a few minutes in 13°C water is uncomfortable, and swimming below 10°C may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

In Trondheim, Norway, the average length of the day in April is 15h and 2min.
On the first day of April, sunrise is at 06:38 and sunset at 20:06. On the last day of the month, sunrise is at 04:59 and sunset at 21:32 CEST.

Sunshine

The average sunshine in April in Trondheim is 5h.

UV index

In Trondheim, the average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: In April, the maximum UV index of 2 suggests this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. When the Sun is at its strongest around midday, find shade and limit exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.