April weather forecast
Oslo, Norway

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The Vigeland sculpture park in Oslo, Norway, at dusk
The Vigeland sculpture park in Oslo, Norway, at dusk

Weather in April

April ushers in true spring-like conditions in Oslo as temperatures climb noticeably, reaching averages as high as 9.1°C. Visiting the city in this period affords a delightful experience, with the natural landscape covered in spring bulbs and greenery. This also coincides with longer daylight hours of up to 14.6 hours per day, allowing for extended sightseeing sessions. Oslo's April weather enhances the city's appeal, adding color and life to its remarkable architecture.

Temperature

The shift from March to April is marked by an increase in the average high-temperature, moving from a wintry 3.5°C to a chilly 9.1°C. Nighttime temperature experiences an average drop to a wintry 0.8°C in April.

Rainfall

In Oslo, during April, the rain falls for 5 days and regularly aggregates up to 41mm of precipitation. Throughout the year, in Oslo, Norway, there are 77 rainfall days, and 763mm of precipitation is accumulated.

Sea temperature

In Oslo, in April, the average water temperature is 6.3°C.
Note: Taking a dip in 6.3°C can be perilous. Submersion in temperatures under 10°C triggers severe cold shock accompanied by hyperventilation.

Daylight

In April, the average length of the day in Oslo is 14h and 37min.
On the first day of the month, sunrise is at 06:42 and sunset at 19:59. On the last day of April, sunrise is at 05:18 and sunset at 21:10 CEST.

Sunshine

In April, the average sunshine is 5.9h.

UV index

The average daily maximum UV index in April in Oslo is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In April, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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FAQ

What are April temperatures in Oslo?

Oslo in April has an average high-temperature of 9.1°C and an average low-temperature of 0.8°C.

How much does it rain in Oslo in April?

In Oslo, in April, it is raining for 5 days, with typically 41mm of accumulated precipitation.

What is the sea water temperature in April in Oslo?

In Oslo, Norway, the average seawater temperature in April is 6.3°C. Swimming in 6.3°C is considered dangerous. Unprotected immersion in temperatures below 10°C causes quickly maximum intensity cold shock with hyperventilation.

What is the average length of the day in April in Oslo?

In April, the average day length in Oslo is 14h and 37min.

What time are sunrise and sunset in April in Oslo?

In April, on the first day of the month, sunrise is at 06:42 and sunset at 19:59. On the last day of the month, in Oslo, sunrise is at 05:18 and sunset at 21:10 CEST.

How many hours of sunshine does Oslo have in April?

In Oslo, Norway, the average sunshine duration in April is 5.9h.

How high is the UV index in April in Oslo?

The average daily maximum UV index in April in Oslo is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average rainfall
Average rainfall days
Average sea temperature
Average daylight
Average sunshine
Average UV index

Average temperature in April
Oslo, Norway

Average temperature in April - Oslo, Norway
  • Average high temperature in April: 9.1°C

The warmest month (with the highest average high temperature) is July (21.5°C).
The month with the lowest average high temperature is January (-1.8°C).

  • Average low temperature in April: 0.8°C

The month with the highest average low temperature is July (12.2°C).
The coldest months (with the lowest average low temperature) are January and February (-6.8°C).

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Average rainfall in April
Oslo, Norway

Average rainfall in April - Oslo, Norway
  • Average rainfall in April: 41mm

The wettest month (with the highest rainfall) is September (90mm).
The driest month (with the least rainfall) is February (36mm).

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Average rainfall days in April
Oslo, Norway

Average rainfall days in April - Oslo, Norway
  • Average rainfall days in April: 5 days

The months with the highest number of rainy days are August, October and November (8 days).
The month with the least rainy days is February (4 days).

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Average sea temperature in April
Oslo, Norway

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

The best month for swimming (with the highest average sea temperature) is August (17.9°C).
The coldest month (with the lowest average sea temperature) is March (3°C).

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

Average daylight in April / Average sunshine in April - Oslo, Norway
  • Average daylight in April: 14h and 4min

The month with the longest days is June (Average daylight: 18h and 42min).
The month with the shortest days is December (Average daylight: 6h and 6min).

  • Average sunshine in April: 5h and 5min

The month with the most sunshine is June (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 1h and 6min).

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Average UV index in April
Oslo, Norway

Average UV index in April - Oslo, Norway
  • Average UV index in April: 3

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 0).

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Oslo, Norway

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