September weather forecastLaeken, Belgium
September
Weather in September
September, the first month of the autumn in Laeken, is also an enjoyable month, with an average temperature ranging between min 11.2°C (52.2°F) and max 19.4°C (66.9°F).Temperature
Laeken's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's moderately hot 23.1°C (73.6°F) to an enjoyable 19.4°C (66.9°F). In September, the recorded average low-temperature in Laeken is a cool 11.2°C (52.2°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Laeken, during September, the rain falls for 13.7 days and regularly aggregates up to 30mm (1.18") of precipitation. In Laeken, during the entire year, the rain falls for 199.1 days and collects up to 535mm (21.06") of precipitation.Snowfall
In Laeken, snow does not fall in April through October.Daylight
In September, the average length of the day in Laeken, Belgium, is 12h and 38min.On the first day of the month, sunrise is at 06:57 and sunset at 20:27. On the last day of September, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
In Laeken, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, Belgium
- Average daylight in September: 12h and 36min
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 36min
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
Laeken, 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
Laeken, 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
Laeken, 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
Laeken, 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).
