April weather forecastMarstal, Denmark
April
Weather in April
April is a chilly spring month in Marstal, Denmark, with temperature in the range of an average high of 9.7°C (49.5°F) and an average low of 5.6°C (42.1°F).Temperature
The onset of April marks a slight increase in the average high-temperature, moving from a wintry 5.6°C (42.1°F) in March to a chilly 9.7°C (49.5°F). Marstal's nighttime temperatures in April see a subtle dip to an average of 5.6°C (42.1°F).Humidity
The average relative humidity in April in Marstal is 78%.Rainfall
April is the month with the least rainfall. Rain falls for 10.3 days and accumulates 16mm (0.63") of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.7 snowfall days, in April, Marstal aggregates 1mm (0.04") of snow. Throughout the year, there are 18.3 snowfall days, and 74mm (2.91") of snow is accumulated.Sea temperature
In Marstal, Denmark, the average seawater temperature in April is 7.1°C (44.8°F).Note: Immersing oneself in 7.1°C (44.8°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In April, the average length of the day in Marstal is 14h and 8min.On the first day of the month, sunrise is at 06:48 and sunset at 19:55. On the last day of April, sunrise is at 05:38 and sunset at 20:51 CEST.
Sunshine
In April, the average sunshine is 8.6h.UV index
In Marstal, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during April leads to these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Marstal, Denmark
- Average high temperature in April: 9.7°C
The warmest months (with the highest average high temperature) are July and August (19.8°C).
The month with the lowest average high temperature is February (2.9°C).
- Average low temperature in April: 5.6°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in April
Marstal, Denmark
- Average pressure in April: 1015.6mbar
The months with the highest atmospheric pressure are April and May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed in April
Marstal, Denmark
- Average wind speed in April: 18.7km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (18.4km/h).
Average humidity in April
Marstal, Denmark
- Average humidity in April: 78%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (77%).
Average rainfall in April
Marstal, Denmark
- Average rainfall in April: 16mm
The wettest month (with the highest rainfall) is July (64mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in April
Marstal, Denmark
- Average rainfall days in April: 10.3 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10 days).
Average snowfall in April
Marstal, Denmark
- Average snowfall in April: 1mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Marstal, Denmark
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Marstal, Denmark
- Average sea temperature in April: 7.1°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is January (2.3°C).
Average daylight in April /
Average sunshine in April
Marstal, Denmark
- Average daylight in April: 14h and 6min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in April: 8h and 36min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in April
Marstal, Denmark
- Average sunshine days in April: 17.2 days
The month with the most sunshine days is April (17.2 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in April
Marstal, Denmark
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in April
Marstal, Denmark
- Average cloud cover in April: 41
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 40).
Average visibility in April
Marstal, Denmark
- Average visibility in April: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





