September weather forecastJambes, Belgium
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Jambes, Belgium, with an average temperature varying between 18.8°C (65.8°F) and 9.8°C (49.6°F).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from an agreeable 22.5°C (72.5°F) in August to a comfortable 18.8°C (65.8°F). An average low-temperature of 9.8°C (49.6°F) is recorded in the month of September in Jambes, Belgium.Humidity
In Jambes, the average relative humidity in September is 80%.Rainfall
In Jambes, in September, during 12.9 rainfall days, 35mm (1.38") of precipitation is typically accumulated. In Jambes, during the entire year, the rain falls for 179.6 days and collects up to 508mm (20") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 06:55 and sunset at 20:25. On the last day of September, sunrise is at 07:40 and sunset at 19:20 CEST.
Sunshine
In Jambes, the average sunshine in September is 7.4h.UV index
In September, the average daily maximum UV index in Jambes, Belgium, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jambes, Belgium
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-0.1°C).
Average pressure in September
Jambes, Belgium
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Jambes, Belgium
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is December (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.3km/h).
Average humidity in September
Jambes, Belgium
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Jambes, Belgium
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Jambes, Belgium
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (12 days).
Average snowfall in September
Jambes, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Jambes, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.5 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
Jambes, Belgium
- Average daylight in September: 12h and 36min
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 6min).
- Average sunshine in September: 7h and 24min
The months with the most sunshine are July and August (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Jambes, Belgium
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is June (10.2 days).
Average UV index in September
Jambes, Belgium
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Jambes, Belgium
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Jambes, Belgium
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August and October (9km).
The months with the lowest visibility are January, September, November and December (8km).
