September weather forecastLanaye, Belgium
September
Weather in September
September, the first month of the autumn in Lanaye, is still a comfortable month, with an average temperature fluctuating between 9.8°C (49.6°F) and 18.8°C (65.8°F).Temperature
Lanaye's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's agreeable 22.3°C (72.1°F) to an enjoyable 18.8°C (65.8°F). Lanaye's average low-temperature for the month of September records at a chilly 9.8°C (49.6°F).Humidity
In Lanaye, the average relative humidity in September is 80%.Rainfall
In Lanaye, during September, the rain falls for 13.5 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, there are 193.2 rainfall days, and 544mm (21.42") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Lanaye, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:51 and sunset at 20:22. On the last day of September, in Lanaye, sunrise is at 07:36 and sunset at 19:17 CEST.
Sunshine
In Lanaye, the average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - Precautionary measures against sun damage are advocated. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lanaye, Belgium
- Average high temperature in September: 18.8°C
The warmest months (with the highest average high temperature) are July and August (22.3°C).
The month with the lowest average high temperature is January (4.1°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in September
Lanaye, 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 (1013.1mbar).
Average wind speed in September
Lanaye, Belgium
- Average wind speed in September: 10.9km/h
The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in September
Lanaye, Belgium
- Average humidity in September: 80%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are April and August (77%).
Average rainfall in September
Lanaye, Belgium
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (58mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Lanaye, Belgium
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in September
Lanaye, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lanaye, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 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
Lanaye, 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 48min
The months with the most sunshine are July and August (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Lanaye, Belgium
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in September
Lanaye, Belgium
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Lanaye, Belgium
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Lanaye, Belgium
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
