September weather forecastDiest, Belgium
September
Weather in September
September, the first month of the autumn in Diest, is still a comfortable month, with an average temperature ranging between max 19.5°C (67.1°F) and min 10.9°C (51.6°F).Temperature
September heralds a minor drop in average high-temperature, sliding from August's warm 23.3°C (73.9°F) to an enjoyable 19.5°C (67.1°F). Diest, during the nights of September, experiences an average temperature drop to a fresh 10.9°C (51.6°F).Humidity
In Diest, Belgium, the average relative humidity in September is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 9.5 days and accumulates 17mm (0.67") of precipitation.Snowfall
April through October are months without snowfall in Diest.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 06:54 and sunset at 20:25. On the last day of September, sunrise is at 07:39 and sunset at 19:19 CEST.
Sunshine
In September, the average sunshine in Diest is 7.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Diest, 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 (5.2°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (14°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Diest, 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 (1012.6mbar).
Average wind speed in September
Diest, Belgium
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is December (17.9km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Diest, Belgium
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (74%).
Average rainfall in September
Diest, Belgium
- Average rainfall in September: 17mm
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in September
Diest, Belgium
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is December (17.5 days).
The month with the least rainy days is September (9.5 days).
Average snowfall in September
Diest, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is February (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Diest, Belgium
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (4.7 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
Diest, 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 month with the most sunshine is July (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Diest, Belgium
- Average sunshine days in September: 18.6 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is December (8.8 days).
Average UV index in September
Diest, 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
Diest, Belgium
- Average cloud cover in September: 44
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 42).
Average visibility in September
Diest, 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).
