May weather forecastOud-Heverlee, Belgium
May weather for Oud-Heverlee, Belgium: On the last day of the month, in Oud-Heverlee, sunrise is at 05:33 and sunset at 21:44 CEST. May, the last month of the spring in Oud-Heverlee, is a comfortable month, with an average temperature ranging between max 17.5°C (63.5°F) and min 8.3°C (46.9°F).
May
Weather in May
May, the last month of the spring in Oud-Heverlee, is a comfortable month, with an average temperature ranging between max 17.5°C (63.5°F) and min 8.3°C (46.9°F).Temperature
Oud-Heverlee marks the start of May with an average high-temperature of an enjoyable 17.5°C (63.5°F), hinting at a slight fluctuation from April's 15.3°C (59.5°F). An average nighttime temperature of 8.3°C (46.9°F) is recorded during May.Humidity
The average relative humidity in May in Oud-Heverlee is 78%.Rainfall
In Oud-Heverlee, Belgium, during May, the rain falls for 13.8 days and regularly aggregates up to 27mm (1.06") of precipitation. Throughout the year, there are 162.7 rainfall days, and 395mm (15.55") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In May, the average length of the day is 15h and 32min.On the first day of May in Oud-Heverlee, sunrise is at 06:13 and sunset at 21:02. On the last day of the month, sunrise is at 05:33 and sunset at 21:44 CEST.
Sunshine
In May, the average sunshine is 8.4h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during May translates into these guidelines:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Oud-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
Oud-Heverlee, Belgium
- Average pressure in May: 1016.4mbar
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
Oud-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
Oud-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
Oud-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 April (17mm).
Average rainfall days in May
Oud-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 (9.2 days).
Average snowfall in May
Oud-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
Oud-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
Oud-Heverlee, Belgium
- Average daylight in May: 15h and 30min
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 24min
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 36min).
Average sunshine days in May
Oud-Heverlee, Belgium
- Average sunshine days in May: 15.5 days
The month with the most sunshine days is September (19.6 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in May
Oud-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
Oud-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
Oud-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).





