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
Heverlee experiences a subtle adjustment in high-temperatures to a comfortable 17.5°C (63.5°F) with the onset of May, maintaining near parity with April's 15.3°C (59.5°F). During May nights, Heverlee records an average temperature of 8.3°C (46.9°F).Humidity
In May, the average relative humidity is 78%.Rainfall
In Heverlee, in May, during 13.8 rainfall days, 27mm (1.06") of precipitation is typically accumulated. Throughout the year, in Heverlee, there are 162 rainfall days, and 393mm (15.47") of precipitation is accumulated.Snowfall
In Heverlee, Belgium, snow does not fall in April through October.Daylight
In Heverlee, the average length of the day in May is 15h and 33min.On the first day of the month, sunrise is at 06:13 and sunset at 21:02. On the last day of May, in Heverlee, sunrise is at 05:33 and sunset at 21:44 CEST.
Sunshine
In May, the average sunshine in Heverlee is 8.4h.UV index
In Heverlee, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 4 in May translates into the following recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Frequently asked questions
What is the average May temperature in Heverlee?
What is the average humidity in May in Heverlee?
How many days does it rain in May in Heverlee?
When it does not snow in Heverlee?
What is the average length of the day in May in Heverlee?
What time are sunrise and sunset in May in Heverlee?
How long on average sun shines in May in Heverlee?
What is the UV index intensity in May in Heverlee?
Average temperature in May
Heverlee, Belgium
- Average high temperature in May: 17.5°C
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in May: 8.3°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in May
Heverlee, Belgium
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in May
Heverlee, Belgium
- Average wind speed in May: 12.4km/h
The windiest month (with the highest average wind speed) is December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in May
Heverlee, Belgium
- Average humidity in May: 78%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in May
Heverlee, Belgium
- Average rainfall in May: 27mm
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in May
Heverlee, Belgium
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in May
Heverlee, Belgium
- Average snowfall in May: 0mm
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Heverlee, Belgium
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5 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
Heverlee, Belgium
- Average daylight in May: 15h and 3min
The month with the longest days is June (Average daylight: 16h and 24min).
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 12min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in May
Heverlee, Belgium
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is September (20.1 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in May
Heverlee, 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
Heverlee, Belgium
- Average cloud cover in May: 45
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in May
Heverlee, 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).
Heverlee, Belgium
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