September weather forecastSijsele, Belgium
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Sijsele, Belgium, with temperature in the range of an average high of 18.9°C (66°F) and an average low of 13.3°C (55.9°F).Temperature
A minor adjustment in Sijsele's average high-temperature is noted with the start of September, touching a refreshing 18.9°C (66°F) from August's 21.4°C (70.5°F). Sijsele's temperature in September lowers to a consistent average of 13.3°C (55.9°F) during the nights.Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 15.8 days. Throughout September, 38mm (1.5") of precipitation is accumulated. In Sijsele, during the entire year, the rain falls for 191 days and collects up to 505mm (19.88") of precipitation.Snowfall
In Sijsele, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of September, sunrise is at 07:00 and sunset at 20:32. On the last day of the month, sunrise is at 07:46 and sunset at 19:26 CEST.
Sunshine
In September, the average sunshine is 7.3h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sijsele, Belgium
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (21.4°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 13.3°C
The month with the highest average low temperature is August (15.1°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).
Average pressure in September
Sijsele, Belgium
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is September (1017.2mbar).
The month with the lowest atmospheric pressure is November (1011.7mbar).
Average wind speed in September
Sijsele, Belgium
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is December (22.6km/h).
The calmest month (with the lowest average wind speed) is July (15.3km/h).
Average humidity in September
Sijsele, Belgium
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in September
Sijsele, Belgium
- Average rainfall in September: 38mm
The wettest months (with the highest rainfall) are August and December (56mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in September
Sijsele, Belgium
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is November (18.6 days).
The month with the least rainy days is April (12.1 days).
Average snowfall in September
Sijsele, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Sijsele, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Sijsele, Belgium
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Sijsele, Belgium
- Average sunshine days in September: 11.1 days
The month with the most sunshine days is April (15.4 days).
The month with the least sunshine days is December (7 days).
Average UV index in September
Sijsele, 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
Sijsele, Belgium
- Average cloud cover in September: 41
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 38).
Average visibility in September
Sijsele, Belgium
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
