September weather forecastDeinze, Belgium
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Deinze, Belgium, with an average temperature fluctuating between 19.9°C (67.8°F) and 11.5°C (52.7°F).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's warm 23.2°C (73.8°F) to an enjoyable 19.9°C (67.8°F). Throughout the month of September, Deinze sees a steady low-temperature average of 11.5°C (52.7°F).Humidity
In Deinze, the average relative humidity in September is 77%.Rainfall
In Deinze, in September, during 13.7 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 183.1 rainfall days, and 499mm (19.65") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Deinze.Daylight
In September, the average length of the day in Deinze is 12h and 38min.On the first day of September, sunrise is at 07:00 and sunset at 20:31. On the last day of the month, sunrise is at 07:45 and sunset at 19:25 CEST.
Sunshine
The average sunshine in September in Deinze, Belgium, is 7.2h.UV index
In Deinze, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Deinze, Belgium
- Average high temperature in September: 19.9°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 (5.6°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Deinze, Belgium
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1012.1mbar).
Average wind speed in September
Deinze, Belgium
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is December (16.9km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in September
Deinze, Belgium
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in September
Deinze, Belgium
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (55mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Deinze, Belgium
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is August (17.7 days).
The month with the least rainy days is February (12.6 days).
Average snowfall in September
Deinze, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Deinze, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Deinze, 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 12min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Deinze, Belgium
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is April (14 days).
The month with the least sunshine days is November (10.5 days).
Average UV index in September
Deinze, 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
Deinze, Belgium
- Average cloud cover in September: 45
The months with the most cloud cover are January and December (Cloud cover 63).
The month with the least cloud cover is April (Cloud cover 42).
Average visibility in September
Deinze, Belgium
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).





