September weather forecastAlken, Belgium
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Alken, Belgium, with an average temperature fluctuating between 10.9°C (51.6°F) and 19.2°C (66.6°F).Temperature
In Alken, the average high-temperature in September slightly decreases from a moderately hot 23.2°C (73.8°F) in August to a comfortable 19.2°C (66.6°F). Alken experiences an average temperature drop to a cool 10.9°C (51.6°F) during September nights.Humidity
In Alken, the average relative humidity in September is 79%.Rainfall
In Alken, during September, the rain falls for 13.1 days and regularly aggregates up to 27mm (1.06") of precipitation. In Alken, during the entire year, the rain falls for 183.6 days and collects up to 475mm (18.7") of precipitation.Snowfall
April through October are months without snowfall in Alken.Daylight
In Alken, the average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 06:53 and sunset at 20:23. On the last day of the month, sunrise is at 07:38 and sunset at 19:18 CEST.
Sunshine
In Alken, Belgium, the average sunshine in September is 7.9h.UV index
In September, the average daily maximum UV index in Alken, Belgium, is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alken, Belgium
- Average high temperature in September: 19.2°C
The warmest months (with the highest average high temperature) are July and August (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Alken, 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 (1012.8mbar).
Average wind speed in September
Alken, Belgium
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in September
Alken, Belgium
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Alken, Belgium
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Alken, Belgium
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is July (17.8 days).
The months with the least rainy days are February and April (12.5 days).
Average snowfall in September
Alken, Belgium
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Alken, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 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
Alken, 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 54min
The month with the most sunshine is July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 48min).
Average sunshine days in September
Alken, Belgium
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Alken, 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
Alken, Belgium
- Average cloud cover in September: 42
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 41).
Average visibility in September
Alken, 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).
