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
September's arrival signals a moderate reduction in the average high-temperature, easing from a warm 23.1°C (73.6°F) in August to a comfortable 19.6°C (67.3°F). Throughout September, an average low-temperature of 11.3°C (52.3°F) is expected.Humidity
In Alsemberg, the average relative humidity in September is 78%.Rainfall
In Alsemberg, in September, it is raining for 12.5 days, with typically 31mm (1.22") of accumulated precipitation. In Alsemberg, during the entire year, the rain falls for 179.3 days and collects up to 469mm (18.46") of precipitation.Snowfall
In Alsemberg, Belgium, snow does not fall in April through September.Daylight
In Alsemberg, Belgium, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 06:57 and sunset at 20:27. On the last day of the month, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
In September, the average sunshine in Alsemberg is 7.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Frequently asked questions
What is the average September temperature in Alsemberg?
What is the average humidity in September in Alsemberg?
How many days does it rain in September in Alsemberg?
When it does not snow in Alsemberg?
Does it snow in Alsemberg in September?
How many hours of daylight does Alsemberg have in September?
When is the sunrise / sunset in September in Alsemberg?
How long on average sun shines in September in Alsemberg?
What is the UV index intensity in September in Alsemberg?
Average temperature in September
Alsemberg, Belgium
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in September: 11.3°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°C).
Average pressure in September
Alsemberg, Belgium
- Average pressure in September: 1017.4mbar
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 September
Alsemberg, Belgium
- Average wind speed in September: 12.1km/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 September
Alsemberg, 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
Alsemberg, Belgium
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is December (54mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Alsemberg, Belgium
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Alsemberg, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Alsemberg, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Alsemberg, 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 6min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are July and August (Average sunshine: 9h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Alsemberg, Belgium
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The months with the least sunshine days are February, August and December (10.9 days).
Average UV index in September
Alsemberg, 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
Alsemberg, Belgium
- Average cloud cover in September: 43
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 42).
Average visibility in September
Alsemberg, Belgium
- Average visibility in September: 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).
Alsemberg, Belgium
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