Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the onset of September, Diegem's average high-temperature slightly adjusts, moderately receding from August's moderately hot 23.1°C (73.6°F) to a refreshing 19.4°C (66.9°F). In Diegem, the expected average low-temperature for September is a cool 11.2°C (52.2°F).Humidity
In September, the average relative humidity in Diegem is 78%.Rainfall
In Diegem, in September, during 13.7 rainfall days, 30mm (1.18") of precipitation is typically accumulated. In Diegem, during the entire year, the rain falls for 199.1 days and collects up to 535mm (21.06") of precipitation.Snowfall
In Diegem, Belgium, snow does not fall in April through October.Daylight
The average length of the day in September in Diegem is 12h and 38min.On the first day of the month, sunrise is at 06:56 and sunset at 20:27. On the last day of September, in Diegem, sunrise is at 07:41 and sunset at 19:22 CEST.
Sunshine
The average sunshine in September in Diegem is 7.6h.UV index
The average daily maximum UV index in September in Diegem, Belgium, is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
What is the average September temperature in Diegem?
What is the average humidity in September in Diegem?
How many days does it rain in September in Diegem?
When it does not snow in Diegem?
What is the average length of the day in September in Diegem?
What time are sunrise and sunset in September in Diegem?
How long on average sun shines in September in Diegem?
How high is the UV index in September in Diegem?
Average temperature in September
Diegem, Belgium
- Average high temperature in September: 19.4°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 September: 11.2°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 September
Diegem, Belgium
- Average pressure in September: 1017.5mbar
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 September
Diegem, Belgium
- Average wind speed in September: 12km/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 September
Diegem, Belgium
- Average humidity in September: 78%
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 September
Diegem, Belgium
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Diegem, Belgium
- Average rainfall days in September: 13.7 days
The months with the highest number of rainy days are May and July (18.8 days).
The months with the least rainy days are February and September (13.7 days).
Average snowfall in September
Diegem, Belgium
- Average snowfall in September: 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 September
Diegem, Belgium
- Average snowfall days in September: 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 September /
Average sunshine in September
Diegem, Belgium
- Average daylight in September: 12h and 4min
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 September: 7h and 4min
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 48min).
Average sunshine days in September
Diegem, Belgium
- Average sunshine days in September: 11.8 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 September
Diegem, Belgium
- Average UV index in September: 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 September
Diegem, Belgium
- Average cloud cover in September: 43
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 September
Diegem, Belgium
- Average visibility in September: 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).
Diegem, Belgium
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