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 reveals a small adjustment in temperature, transitioning from an average high of a warm 23.1°C (73.6°F) in August to a comfortable 19.9°C (67.8°F). Rollegem observes an average low-temperature of 11.8°C (53.2°F) during September.Humidity
The average relative humidity in September is 77%.Rainfall
In Rollegem, during September, the rain falls for 5.9 days and regularly aggregates up to 8mm (0.31") of precipitation. In Rollegem, Belgium, during the entire year, the rain falls for 91.4 days and collects up to 116mm (4.57") of precipitation.Snowfall
In Rollegem, snow does not fall in March through November.Daylight
In September, the average length of the day is 12h and 37min.On the first day of September in Rollegem, sunrise is at 07:01 and sunset at 20:31. On the last day of the month, sunrise is at 07:46 and sunset at 19:26 CEST.
Sunshine
The average sunshine in September in Rollegem is 7.2h.UV index
In Rollegem, 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 unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What is the average September temperature in Rollegem?
What is the average humidity in September in Rollegem?
How many days does it rain in September in Rollegem?
When it does not snow in Rollegem?
How many hours of daylight does Rollegem have in September?
When is the sunrise / sunset in September in Rollegem?
How many hours of sunshine does Rollegem have in September?
What is the UV index intensity in September in Rollegem?
Average temperature in September
Rollegem, Belgium
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is July (23.2°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Rollegem, 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 (1012.1mbar).
Average wind speed in September
Rollegem, Belgium
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is December (17.3km/h).
The calmest month (with the lowest average wind speed) is August (12km/h).
Average humidity in September
Rollegem, Belgium
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Rollegem, Belgium
- Average rainfall in September: 8mm
The wettest months (with the highest rainfall) are June and December (13mm).
The driest month (with the least rainfall) is April (7mm).
Average rainfall days in September
Rollegem, Belgium
- Average rainfall days in September: 5.9 days
The month with the highest number of rainy days is June (9.3 days).
The month with the least rainy days is September (5.9 days).
Average snowfall in September
Rollegem, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Rollegem, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rollegem, 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 0min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Rollegem, Belgium
- Average sunshine days in September: 22.2 days
The months with the most sunshine days are September and October (22.2 days).
The month with the least sunshine days is June (16.3 days).
Average UV index in September
Rollegem, 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
Rollegem, Belgium
- Average cloud cover in September: 43
The months with the most cloud cover are January and December (Cloud cover 61).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Rollegem, 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).
Rollegem, Belgium
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