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
Demer observes an average high-temperature of a comfortable 17.9°C (64.2°F) in May, barely different from 15.4°C (59.7°F) in April. May nights observe an average temperature dip to a chilly 8.4°C (47.1°F).Humidity
In Demer, the average relative humidity in May is 78%.Rainfall
In Demer, during May, the rain falls for 13.8 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 167 rainfall days, and 427mm (16.81") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Demer.Daylight
The average length of the day in May is 15h and 34min.On the first day of the month, sunrise is at 06:12 and sunset at 21:02. On the last day of May, in Demer, sunrise is at 05:31 and sunset at 21:44 CEST.
Sunshine
The average sunshine in May is 8.1h.UV index
In Demer, the average daily maximum UV index in May is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 4 during May translates into these guidelines:
Take precautions - Protection against sun damage is advised. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
What is the usual temperature for Demer in May?
What is the average humidity in May in Demer?
How many days does it rain in May in Demer?
When it does not snow in Demer?
What is the average length of the day in May in Demer?
When are sunrise and sunset in May in Demer?
How long on average sun shines in May in Demer?
What is the UV index reading in May in Demer?
Average temperature in May
Demer, Belgium
- Average high temperature in May: 17.9°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (5.2°C).
- Average low temperature in May: 8.4°C
The month with the highest average low temperature is August (14°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in May
Demer, 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 (1012.6mbar).
Average wind speed in May
Demer, Belgium
- Average wind speed in May: 12.3km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in May
Demer, Belgium
- Average humidity in May: 78%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in May
Demer, Belgium
- Average rainfall in May: 33mm
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (20mm).
Average rainfall days in May
Demer, Belgium
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is December (17.5 days).
The month with the least rainy days is September (9.9 days).
Average snowfall in May
Demer, 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
Demer, Belgium
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (4.7 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
Demer, 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 1min
The month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in May
Demer, Belgium
- Average sunshine days in May: 15.1 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is December (8.8 days).
Average UV index in May
Demer, 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
Demer, Belgium
- Average cloud cover in May: 47
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 42).
Average visibility in May
Demer, Belgium
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Demer, Belgium
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