Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The onset of September is marked by a minor decrease in temperature, transitioning from a moderately hot 23.1°C (73.6°F) in August to a refreshing 19.5°C (67.1°F). During September, Niel experiences an average low-temperature of 11.5°C (52.7°F) at night.Humidity
In Niel, the average relative humidity in September is 78%.Rainfall
In Niel, Belgium, in September, during 11.7 rainfall days, 22mm (0.87") of precipitation is typically accumulated. Throughout the year, in Niel, there are 179.3 rainfall days, and 449mm (17.68") of precipitation is accumulated.Snowfall
In Niel, snow does not fall in April through October.Daylight
The average length of the day in September in Niel, Belgium, is 12h and 38min.On the first day of the month, sunrise is at 06:56 and sunset at 20:28. On the last day of September, sunrise is at 07:42 and sunset at 19:22 CEST.
Sunshine
In September, the average sunshine in Niel is 7.6h.UV index
In September, the average daily maximum UV index in Niel is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: An average maximum UV index of 4 in September leads to these recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the average September temperature in Niel?
What is the average humidity in September in Niel?
How many days does it rain in September in Niel?
When it does not snow in Niel?
How many hours of daylight does Niel have in September?
When is the sunrise / sunset in September in Niel?
How many hours of sunshine does Niel have in September?
What is the UV index intensity in September in Niel?
Average temperature in September
Niel, Belgium
- Average high temperature in September: 19.5°C
The warmest months (with the highest average high temperature) are July and August (23.1°C).
The month with the lowest average high temperature is January (5.4°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.3°C).
The coldest months (with the lowest average low temperature) are January and February (1.6°C).
Average pressure in September
Niel, 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 (1012.2mbar).
Average wind speed in September
Niel, Belgium
- Average wind speed in September: 11.8km/h
The windiest month (with the highest average wind speed) is December (17.2km/h).
The calmest month (with the lowest average wind speed) is August (11.6km/h).
Average humidity in September
Niel, Belgium
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is April (73%).
Average rainfall in September
Niel, Belgium
- Average rainfall in September: 22mm
The wettest month (with the highest rainfall) is December (57mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Niel, Belgium
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is December (18.7 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in September
Niel, Belgium
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (31mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Niel, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.3 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
Niel, Belgium
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is June (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Niel, Belgium
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is December (8.2 days).
Average UV index in September
Niel, 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
Niel, Belgium
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Niel, Belgium
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).
Niel, Belgium
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