April weather forecast
Trondheim, Norway

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Weather in April

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.

Frequently asked questions

Is April cold in Trondheim?

The high-temperature, in April, in Trondheim, records 6°C (42.8°F), while the low-temperature is 0°C (32°F).

How much does it rain in Trondheim in April?

In Trondheim, Norway, during April, the rain falls for 18 days and regularly aggregates up to 67mm (2.64") of precipitation.

What is the sea water temperature in April in Trondheim?

In April, the average sea temperature in Trondheim, Norway, is 6.3°C (43.3°F). Swimming in 6.3°C (43.3°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

How many hours of daylight does Trondheim have in April?

In April, the average day length is 15h and 2min.

When are sunrise and sunset in April in Trondheim?

In April, on the first day of the month, sunrise is at 06:35 and sunset at 20:08. On the last day of the month, in Trondheim, sunrise is at 04:56 and sunset at 21:34 CEST.

How long on average sun shines in April in Trondheim?

The average sunshine duration in April in Trondheim is 5h.

What is the UV index intensity in April in Trondheim?

In Trondheim, the average daily maximum UV index in April is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in April
Trondheim, Norway

Average temperature in April - Trondheim, Norway
  • Average high temperature in April: 6°C

The warmest month (with the highest average high temperature) is August (17°C).
The months with the lowest average high temperature are January and February (0°C).

  • Average low temperature in April: 0°C

The months with the highest average low temperature are July and August (9°C).
The coldest months (with the lowest average low temperature) are January and February (-5°C).

Average rainfall in April
Trondheim, Norway

Average rainfall in April - Trondheim, Norway
  • Average rainfall in April: 67mm

The wettest month (with the highest rainfall) is September (133mm).
The driest month (with the least rainfall) is May (53mm).

Average rainfall days in April
Trondheim, Norway

Average rainfall days in April - Trondheim, Norway
  • Average rainfall days in April: 18 days

The months with the highest number of rainy days are September and December (24 days).
The month with the least rainy days is May (15 days).

Average sea temperature in April
Trondheim, Norway

Average sea temperature in April - Trondheim, Norway
  • Average sea temperature in April: 6.3°C

The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (4.9°C).

Average daylight in April /
Average sunshine in April
Trondheim, Norway

Average daylight in April / Average sunshine in April - Trondheim, Norway
  • Average daylight in April: 15h and 0min

The month with the longest days is June (Average daylight: 20h and 24min).
The month with the shortest days is December (Average daylight: 4h and 42min).

  • Average sunshine in April: 5h

The months with the most sunshine are May and June (Average sunshine: 7h).
The months with the least sunshine are January and December (Average sunshine: 0h).

Average UV index in April
Trondheim, Norway

Average UV index in April - Trondheim, Norway
  • Average UV index in April: 2

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 0).

Trondheim, Norway

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