September weather forecastDuffel, Belgium
September
Weather in September
September, the first month of the autumn in Duffel, is also an enjoyable month, with an average temperature fluctuating between 19.5°C (67.1°F) and 11.2°C (52.2°F).Temperature
The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 23.3°C (73.9°F) in August to an enjoyable 19.5°C (67.1°F). Throughout the nights in September, Duffel experiences an average low-temperature of 11.2°C (52.2°F).Humidity
The average relative humidity in September is 78%.Rainfall
In Duffel, in September, it is raining for 7.7 days, with typically 10mm (0.39") of accumulated precipitation. Throughout the year, in Duffel, Belgium, there are 118.8 rainfall days, and 171mm (6.73") of precipitation is accumulated.Snowfall
In Duffel, Belgium, snow does not fall in April through October.Daylight
In Duffel, the average length of the day in September is 12h and 38min.On the first day of September in Duffel, Belgium, sunrise is at 06:56 and sunset at 20:27. On the last day of the month, sunrise is at 07:41 and sunset at 19:21 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Duffel, Belgium
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (14.3°C).
The coldest month (with the lowest average low temperature) is January (1.3°C).
Average pressure in September
Duffel, 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 (1012.3mbar).
Average wind speed in September
Duffel, Belgium
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is December (17.8km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Duffel, Belgium
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The months with the lowest relative humidity are April, July and August (74%).
Average rainfall in September
Duffel, Belgium
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is June (19mm).
The driest month (with the least rainfall) is April (9mm).
Average rainfall days in September
Duffel, Belgium
- Average rainfall days in September: 7.7 days
The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are February and September (7.7 days).
Average snowfall in September
Duffel, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Duffel, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 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
Duffel, 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 24min
The months with the most sunshine are June and July (Average sunshine: 8h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Duffel, Belgium
- Average sunshine days in September: 18.9 days
The month with the most sunshine days is October (19.6 days).
The month with the least sunshine days is June (14.3 days).
Average UV index in September
Duffel, 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
Duffel, Belgium
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are April and August (Cloud cover 43).
Average visibility in September
Duffel, 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).
