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 beginning of September, the average high-temperature shows a small decrease, transitioning from an agreeable 22.5°C (72.5°F) in August to a comfortable 18.5°C (65.3°F). During September, Floreffe records a consistent average nighttime temperature of 9.7°C (49.5°F).Humidity
In Floreffe, Belgium, the average relative humidity in September is 81%.Rainfall
The months with the least rainfall are April and September Rain falls for 12.5 days and accumulates 28mm (1.1") of rain.Snowfall
In Floreffe, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 37min.On the first day of September in Floreffe, sunrise is at 06:56 and sunset at 20:25. On the last day of the month, sunrise is at 07:40 and sunset at 19:21 CEST.
Sunshine
In September, the average sunshine in Floreffe is 7.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Frequently asked questions
What is the temperature in September in Floreffe?
What is the average humidity in September in Floreffe?
What is the driest month in Floreffe?
How many days does it rain in September in Floreffe?
When it does not snow in Floreffe?
How many hours of daylight does Floreffe have in September?
When is the sunrise / sunset in September in Floreffe?
How many hours of sunshine does Floreffe have in September?
How high is the UV index in September in Floreffe?
Average temperature in September
Floreffe, Belgium
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 9.7°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 (-0.1°C).
Average pressure in September
Floreffe, Belgium
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Floreffe, Belgium
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Floreffe, Belgium
- Average humidity in September: 81%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Floreffe, Belgium
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (56mm).
The driest months (with the least rainfall) are April and September (28mm).
Average rainfall days in September
Floreffe, Belgium
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (12 days).
Average snowfall in September
Floreffe, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Floreffe, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Floreffe, 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: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Floreffe, Belgium
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in September
Floreffe, 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, November and December (UV index 2).
Average cloud cover in September
Floreffe, Belgium
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 43).
Average visibility in September
Floreffe, Belgium
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August and October (9km).
The months with the lowest visibility are January, September, November and December (8km).
Floreffe, Belgium
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