April weather forecast
Copenhagen, Denmark

Copenhagen in April experiences a substantial leap in temperatures, reaching up to 10.2°C (50.4°F). This upward shift heralds the true beginning of spring, with clear blue skies and comfortable temperatures perfect for outdoor exploration. The city is bathed in sunlight for longer hours, adding vibrancy to the many festivals that take place this month. As nature bursts into bloom, the city brims with energy, gearing up for warmer months ahead.

Temperature

The coming of April brings a minor shift in Copenhagen's weather, with average high-temperatures adjusting from March's icy 5.5°C (41.9°F) to a fresh 10.2°C (50.4°F). April brings an average low-temperature of 2.4°C (36.3°F) to Copenhagen.

Humidity

The average relative humidity in April is 76%.

Rainfall

In Copenhagen, during April, the rain falls for 11.5 days and regularly aggregates up to 33mm (1.3") of precipitation. In Copenhagen, during the entire year, the rain falls for 157.4 days and collects up to 523mm (20.59") of precipitation.

Snowfall

Months with snowfall are January through April, October through December. April is the last month it regularly snows. Throughout April, there are 1.3 snowfall days. Throughout the year, there are 21.5 snowfall days.

Sea temperature

In Copenhagen, in April, the average water 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

In Copenhagen, Denmark, the average length of the day in April is 14h and 13min.
On the first day of the month, sunrise is at 06:38 and sunset at 19:47. On the last day of April, sunrise is at 05:27 and sunset at 20:46 CEST.

Sunshine

The average sunshine in April is 6.3h.

UV index

In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 3 during April, leads to the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.