September weather forecastBornem, Belgium
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Bornem, Belgium, with an average temperature fluctuating between 11.8°C (53.2°F) and 19.7°C (67.5°F).Temperature
As September commences, the average high-temperature subtly reduces, transitioning from an agreeable 22.9°C (73.2°F) in August to a comfortable 19.7°C (67.5°F). Bornem's average low-temperature in September is measured at a cool 11.8°C (53.2°F).Humidity
In September, the average relative humidity in Bornem is 78%.Rainfall
In Bornem, in September, it is raining for 12.9 days, with typically 32mm (1.26") of accumulated precipitation. Throughout the year, in Bornem, Belgium, there are 180.8 rainfall days, and 462mm (18.19") of precipitation is accumulated.Snowfall
In Bornem, snow does not fall in April through October.Daylight
In Bornem, the average length of the day in September is 12h and 38min.On the first day of September in Bornem, sunrise is at 06:57 and sunset at 20:28. On the last day of the month, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
In Bornem, Belgium, the average sunshine in September is 7.5h.UV index
In Bornem, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 4 during September translates into the following guidance:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bornem, Belgium
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (22.9°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 11.8°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 (1.7°C).
Average pressure in September
Bornem, 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
Bornem, Belgium
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is December (17.6km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in September
Bornem, 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 and August (74%).
Average rainfall in September
Bornem, Belgium
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Bornem, Belgium
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (12.4 days).
Average snowfall in September
Bornem, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Bornem, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.4 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
Bornem, 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 30min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Bornem, Belgium
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is September (14.3 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Bornem, 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
Bornem, Belgium
- Average cloud cover in September: 42
The months with the most cloud cover are January and December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Bornem, 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).
