April weather forecast and climate
Copenhagen, Denmark

Ships docked in the Nyhavn District harbor of Copenhagen, Denmark
Ships docked in the Nyhavn District harbor of Copenhagen, Denmark

Weather in April

April is a cool spring month in Copenhagen, Denmark, with temperature in the range of an average low of 2.4°C (36.3°F) and an average high of 10.2°C (50.4°F).

Temperature

In April, the average high-temperature slightly increases, from a cold 5.5°C (41.9°F) in March, to a fresh 10.2°C (50.4°F). In April, in Copenhagen, the average low-temperature is 2.4°C (36.3°F).

Humidity

The average relative humidity in Copenhagen is 76%.

Rainfall

In Copenhagen, it is raining for 11.5 days, with typically 32.5mm (1.28") of accumulated precipitation. In Copenhagen, during the entire year, the rain falls for 157.4 days and collects up to 522.6mm (20.57") of precipitation.

Snowfall

Months with snowfall in Copenhagen are January through April, October through December. April is the last month it regularly snows in Copenhagen, Denmark. Throughout April, there are 1.3 snowfall days. In Copenhagen, during the entire year, snow falls for 21.5 days.

Sea temperature

In April, the average sea temperature is 5.8°C (42.4°F).
Note: Swimming in 5.8°C (42.4°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

The average length of the day in Copenhagen is 14.2h.

Sunshine

The average sunshine in Copenhagen is 6.3h.

UV index

In Copenhagen, Denmark, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to the UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in April in Copenhagen?

In Copenhagen, the average relative humidity in April is 76%.

How much does it rain in Copenhagen in April?

In April, in Copenhagen, Denmark, the rain falls for 11.5 days. Throughout April, 32.5mm (1.28") of precipitation is accumulated.

What is the last month it snows in Copenhagen?

April is the last month it regularly snows in Copenhagen. Throughout April, there are 1.3 snowfall days.

What is the sea water temperature in April in Copenhagen?

In Copenhagen, in April, the average water temperature is 5.8°C (42.4°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

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

In Copenhagen, Denmark, the average length of the day in April is 14.2h.

How many hours of sunshine does Copenhagen have in April?

In April, the average sunshine in Copenhagen, Denmark, is 6.3h.

What is the UV index reading in April in Copenhagen?

In April, the average daily maximum UV index in Copenhagen, Denmark, is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in April
Copenhagen, Denmark

Average temperature in April - Copenhagen, Denmark
  • Average high temperature in April: 10.2°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (2.5°C).

  • Average low temperature in April: 2.4°C

The month with the highest average low temperature is July (12.9°C).
The coldest month (with the lowest average low temperature) is February (-1.9°C).

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Average humidity in April
Copenhagen, Denmark

Average humidity in April - Copenhagen, Denmark
  • Average humidity in April: 76%

The month with the highest relative humidity is January (86%).
Months with the lowest relative humidity are May and June (72%).

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Average rainfall in April
Copenhagen, Denmark

Average rainfall in April - Copenhagen, Denmark
  • Average rainfall in April: 32.5mm

The wettest month (with the highest rainfall) is September (58.9mm).
The driest month (with the least rainfall) is February (22.7mm).

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Average rainfall days in April
Copenhagen, Denmark

Average rainfall days in April - Copenhagen, Denmark
  • Average rainfall days in April: 11.5 days

Months with the highest number of rainy days are November and December (15.4 days).
The month with the least rainy days is May (10.8 days).

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Average snowfall days in April
Copenhagen, Denmark

Average snowfall days in April - Copenhagen, Denmark
  • Average snowfall days in April: 1.3 days

The month with the highest number of snowfall days is January (5.9 days).
Months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in April
Copenhagen, Denmark

Average sea temperature in April - Copenhagen, Denmark
  • Average sea temperature in April: 5.8°C

The best month for swimming (with the highest average sea temperature) is August (17.8°C).
The coldest month (with the lowest average sea temperature) is February (2.3°C).

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Average daylight in April /
Average sunshine in April
Copenhagen, Denmark

Average daylight in April / Average sunshine in April - Copenhagen, Denmark
  • Average daylight in April: 14.2h

The month with the longest days is June (Average daylight: 17.4h).
The month with the shortest days is December (Average daylight: 7.1h).

  • Average sunshine in April: 6.3h

The month with the most sunshine is May (Average sunshine: 8.5h).
The month with the least sunshine is December (Average sunshine: 1.2h).

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Average UV index in April
Copenhagen, Denmark

Average UV index in April - Copenhagen, Denmark
  • Average UV index in April: 3

The month with the highest UV index is June (UV index 6).
Months with the lowest UV index are January and December (UV index 0).

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