April weather forecastSlagelse, Denmark
April
Weather in April
April in Slagelse is characterized by impressive daylight hours. There predictably presents a further upswing in temperature readings, reflecting warmer days. Snowfall becomes virtually non-existent in this period, affirming a complete transition into spring. Comparatively, May's weather reveals the increased onset of rain in the forecast, however, April's dominant sunshine makes the city come alive in the essence of spring.Temperature
With the onset of April, Slagelse's weather sees a minor temperature rise, transitioning from a chilly 6.4°C (43.5°F) in March to a cool 11.3°C (52.3°F). In Slagelse, an average nighttime temperature of 4.5°C (40.1°F) is expected during April.Humidity
In Slagelse, the average relative humidity in April is 78%.Rainfall
April is the month with the least rainfall in Slagelse. Rain falls for 10 days and accumulates 10mm (0.39") of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Slagelse. During 0.8 snowfall days, in April, Slagelse aggregates 2mm (0.08") of snow. In Slagelse, during the entire year, snow falls for 30.5 days and aggregates up to 137mm (5.39") of snow.Daylight
In April, the average length of the day in Slagelse is 14h and 11min.On the first day of the month, sunrise is at 06:44 and sunset at 19:52. On the last day of April, in Slagelse, sunrise is at 05:33 and sunset at 20:49 CEST.
Sunshine
In April, the average sunshine is 8.2h.UV index
The average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 during April translates into the following guidance:
Exercise prevention - Precautions against solar damage are endorsed. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Slagelse, Denmark
- Average high temperature in April: 11.3°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in April: 4.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in April
Slagelse, Denmark
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is April (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.2mbar).
Average wind speed in April
Slagelse, Denmark
- Average wind speed in April: 13.5km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in April
Slagelse, Denmark
- Average humidity in April: 78%
The months with the highest relative humidity are January, November and December (89%).
The months with the lowest relative humidity are May and June (77%).
Average rainfall in April
Slagelse, Denmark
- Average rainfall in April: 10mm
The wettest month (with the highest rainfall) is August (37mm).
The driest month (with the least rainfall) is April (10mm).
Average rainfall days in April
Slagelse, Denmark
- Average rainfall days in April: 10 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in April
Slagelse, Denmark
- Average snowfall in April: 2mm
The month with the highest snowfall is December (40mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in April
Slagelse, Denmark
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is February (8.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Slagelse, Denmark
- Average daylight in April: 14h and 12min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in April: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 0min).
Average sunshine days in April
Slagelse, Denmark
- Average sunshine days in April: 17.1 days
The month with the most sunshine days is April (17.1 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in April
Slagelse, 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
Slagelse, Denmark
- Average cloud cover in April: 44
The month with the most cloud cover is December (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in April
Slagelse, Denmark
- Average visibility in April: 9km
The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, November and December (8km).





