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
In September, the average high-temperature marginally drops from a moderately hot 23.2°C (73.8°F) in August to a refreshing 19.4°C (66.9°F). September is noted for a mean low-temperature of 11°C (51.8°F).Humidity
The average relative humidity in September in Oppum is 79%.Rainfall
In September, in Oppum, the rain falls for 13.3 days. Throughout September, 30mm (1.18") of precipitation is accumulated. In Oppum, during the entire year, the rain falls for 183.8 days and collects up to 478mm (18.82") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Oppum, Belgium, is 12h and 38min.On the first day of the month, sunrise is at 06:53 and sunset at 20:24. On the last day of September, in Oppum, sunrise is at 07:39 and sunset at 19:19 CEST.
Sunshine
In Oppum, Belgium, the average sunshine in September is 7.7h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. Around midday, solar radiation is most harmful; hence, exposure should be limited. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Oppum?
What is the average humidity in September in Oppum?
How much does it rain in Oppum in September?
When it does not snow in Oppum?
How many hours of daylight does Oppum have in September?
What time are sunrise and sunset in September in Oppum?
How long on average sun shines in September in Oppum?
What is the UV index intensity in September in Oppum?
Average temperature in September
Oppum, Belgium
- Average high temperature in September: 19.4°C
The warmest months (with the highest average high temperature) are July and August (23.2°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Oppum, 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 (1012.8mbar).
Average wind speed in September
Oppum, Belgium
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is December (17.5km/h).
The calmest month (with the lowest average wind speed) is August (11km/h).
Average humidity in September
Oppum, 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
Oppum, Belgium
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (52mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Oppum, Belgium
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is July (17.8 days).
The months with the least rainy days are February and April (12.5 days).
Average snowfall in September
Oppum, Belgium
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (27mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Oppum, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 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
Oppum, 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 July (Average sunshine: 9h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).
Average sunshine days in September
Oppum, Belgium
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in September
Oppum, 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
Oppum, Belgium
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 62).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Oppum, 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).
Oppum, Belgium
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