April weather forecastHaller, Luxembourg
April
Weather in April
April in Haller, Luxembourg, is a moderate spring month, with an average temperature ranging between max 14.2°C (57.6°F) and min 4.5°C (40.1°F).Temperature
April's arrival sees a rise in the average high-temperature, jumping from March's chilly 9.1°C (48.4°F) to a moderate 14.2°C (57.6°F). Throughout April, Haller registers a consistent average low-temperature of 4.5°C (40.1°F).Humidity
April and August, with an average relative humidity of 76%, are the least humid months in Haller.Rainfall
In Haller, in April, during 14.4 rainfall days, 35mm (1.38") of precipitation is typically accumulated. Throughout the year, in Haller, there are 170 rainfall days, and 516mm (20.31") of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Haller, Luxembourg. During 0.5 snowfall days, in April, Haller aggregates 2mm (0.08") of snow. In Haller, during the entire year, snow falls for 28.8 days and aggregates up to 214mm (8.43") of snow.Daylight
In Haller, Luxembourg, the average length of the day in April is 13h and 47min.On the first day of the month, sunrise is at 07:10 and sunset at 20:06. On the last day of April, in Haller, sunrise is at 06:12 and sunset at 20:51 CEST.
Sunshine
In April, the average sunshine is 8.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In April, a daily UV index of 3 turns into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Haller, Luxembourg
- Average high temperature in April: 14.2°C
The warmest month (with the highest average high temperature) is July (22.7°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in April: 4.5°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in April
Haller, Luxembourg
- Average pressure in April: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in April
Haller, Luxembourg
- Average wind speed in April: 11.2km/h
The windiest month (with the highest average wind speed) is February (14.7km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in April
Haller, Luxembourg
- Average humidity in April: 76%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are April and August (76%).
Average rainfall in April
Haller, Luxembourg
- Average rainfall in April: 35mm
The wettest month (with the highest rainfall) is December (69mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in April
Haller, Luxembourg
- Average rainfall days in April: 14.4 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is September (9.6 days).
Average snowfall in April
Haller, Luxembourg
- Average snowfall in April: 2mm
The months with the highest snowfall are January and December (66mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in April
Haller, Luxembourg
- Average snowfall days in April: 0.5 days
The month with the highest number of snowfall days is January (7.9 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
Haller, Luxembourg
- Average daylight in April: 13h and 48min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in April
Haller, Luxembourg
- Average sunshine days in April: 13 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is December (7.6 days).
Average UV index in April
Haller, Luxembourg
- 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, February, November and December (UV index 2).
Average cloud cover in April
Haller, Luxembourg
- Average cloud cover in April: 41
The month with the most cloud cover is December (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in April
Haller, Luxembourg
- Average visibility in April: 9km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are November and December (7km).





