Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
With May's arrival, Grimbergen's weather records an average high-temperature of a comfortable 17.7°C (63.9°F), marking little difference from April's 15.2°C (59.4°F). During May, the temperature in Grimbergen is averaged to a low of 8.3°C (46.9°F) at night.Humidity
The average relative humidity in May is 77%.Rainfall
In Grimbergen, in May, during 18.8 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, there are 199.3 rainfall days, and 541mm (21.3") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In May, the average length of the day is 15h and 34min.On the first day of the month, sunrise is at 06:14 and sunset at 21:04. On the last day of May, in Grimbergen, sunrise is at 05:33 and sunset at 21:46 CEST.
Sunshine
The average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Grimbergen, Belgium, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during May morphs into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Grimbergen?
What is the average humidity in May in Grimbergen?
How many days does it rain in May in Grimbergen?
When it does not snow in Grimbergen?
How many hours of daylight does Grimbergen have in May?
When is the sunrise / sunset in May in Grimbergen?
How many hours of sunshine does Grimbergen have in May?
How high is the UV index in May in Grimbergen?
Average temperature in May
Grimbergen, Belgium
- Average high temperature in May: 17.7°C
The warmest months (with the highest average high temperature) are July and August (23.1°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in May: 8.3°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in May
Grimbergen, Belgium
- Average pressure in May: 1016.5mbar
The month with the highest atmospheric pressure is September (1017.4mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in May
Grimbergen, Belgium
- Average wind speed in May: 12.5km/h
The windiest month (with the highest average wind speed) is December (18km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in May
Grimbergen, Belgium
- Average humidity in May: 77%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April, July and August (75%).
Average rainfall in May
Grimbergen, Belgium
- Average rainfall in May: 45mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in May
Grimbergen, Belgium
- Average rainfall days in May: 18.8 days
The months with the highest number of rainy days are May and July (18.8 days).
The month with the least rainy days is February (13.7 days).
Average snowfall in May
Grimbergen, Belgium
- Average snowfall in May: 0mm
The month with the highest snowfall is February (47mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Grimbergen, Belgium
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Grimbergen, Belgium
- Average daylight in May: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in May: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in May
Grimbergen, Belgium
- Average sunshine days in May: 10.1 days
The month with the most sunshine days is March (12.5 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in May
Grimbergen, Belgium
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Grimbergen, Belgium
- Average cloud cover in May: 45
The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in May
Grimbergen, Belgium
- Average visibility in May: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Grimbergen, Belgium
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