May weather forecastAalst, Belgium
May
Weather in May
Entering into May, Aalst paves the way for summer, with temperature brackets edging up to 8.3°C (46.9°F) from 17.9°C (64.2°F). Weather patterns gradually tilt towards warmer conditions, inviting more sunbathing opportunities. The increase in relative humidity prompts some discomfort, despite falling short of peak levels. The prolonged daylight hours bestow Aalst with a predominantly bright, pleasant day. The slowing wind speed further stabilizes the atmospheric conditions, bringing steady weather.Temperature
As May takes its course, Aalst's average high-temperature registers at a comfortable 17.9°C (64.2°F), closely aligning with the preceding month. The nighttime temperature, during May, averages of 8.3°C (46.9°F).Humidity
The average relative humidity in May is 77%.Rainfall
In May, in Aalst, the rain falls for 13.8 days. Throughout May, 29mm (1.14") of precipitation is accumulated. Throughout the year, in Aalst, Belgium, there are 169.4 rainfall days, and 421mm (16.57") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Aalst.Daylight
In May, the average length of the day is 15h and 34min.On the first day of May, sunrise is at 06:16 and sunset at 21:05. On the last day of the month, sunrise is at 05:35 and sunset at 21:47 CEST.
Sunshine
The average sunshine in May in Aalst is 8.1h.UV index
The average daily maximum UV index in May in Aalst, Belgium, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Undertake protective steps - Recommendations to avoid sunburn are issued. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Aalst, Belgium
- Average high temperature in May: 17.9°C
The warmest month (with the highest average high temperature) is July (23.3°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in May: 8.3°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in May
Aalst, Belgium
- Average pressure in May: 1016.5mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in May
Aalst, Belgium
- Average wind speed in May: 12.4km/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 August (11.7km/h).
Average humidity in May
Aalst, 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
Aalst, Belgium
- Average rainfall in May: 29mm
The wettest month (with the highest rainfall) is December (59mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in May
Aalst, Belgium
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is December (17.9 days).
The month with the least rainy days is September (9.8 days).
Average snowfall in May
Aalst, Belgium
- Average snowfall in May: 0mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Aalst, Belgium
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (4.4 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
Aalst, Belgium
- Average daylight in May: 15h and 36min
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 6min
The month with the most sunshine is June (Average sunshine: 9h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in May
Aalst, Belgium
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is September (18.7 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in May
Aalst, 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
Aalst, Belgium
- Average cloud cover in May: 47
The month with the most cloud cover is December (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 43).
Average visibility in May
Aalst, Belgium
- Average visibility in May: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
