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 arrival of September corresponds with a light shift in temperature, down from a pleasant 21.6°C (70.9°F) in August to an enjoyable 17.6°C (63.7°F). During September, Lontzen records an average temperature of 9.1°C (48.4°F) at night.Humidity
The average relative humidity in September is 83%.Rainfall
In Lontzen, in September, during 13.5 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, in Lontzen, there are 188.4 rainfall days, and 587mm (23.11") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Lontzen is 12h and 37min.On the first day of the month, sunrise is at 06:50 and sunset at 20:20. On the last day of September, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September is 7.7h.UV index
In September, the average daily maximum UV index in Lontzen is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 3 in September translates into the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. It's recommended to limit sun exposure when its radiation is at its peak during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are the temperatures in Lontzen in September?
What is the average humidity in September in Lontzen?
How much does it rain in Lontzen in September?
When it does not snow in Lontzen?
Does it snow in Lontzen in September?
How many hours of daylight does Lontzen have in September?
What time are sunrise and sunset in September in Lontzen?
How long on average sun shines in September in Lontzen?
What is the UV index intensity in September in Lontzen?
Average temperature in September
Lontzen, Belgium
- Average high temperature in September: 17.6°C
The warmest months (with the highest average high temperature) are July and August (21.6°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 9.1°C
The month with the highest average low temperature is August (12.1°C).
The coldest months (with the lowest average low temperature) are January and February (-0.8°C).
Average pressure in September
Lontzen, Belgium
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is September (1017.7mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).
Average wind speed in September
Lontzen, Belgium
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is December (17km/h).
The calmest month (with the lowest average wind speed) is August (10.5km/h).
Average humidity in September
Lontzen, Belgium
- Average humidity in September: 83%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and August (79%).
Average rainfall in September
Lontzen, Belgium
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Lontzen, Belgium
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (12.3 days).
Average snowfall in September
Lontzen, Belgium
- Average snowfall in September: 0mm
The month with the highest snowfall is February (76mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Lontzen, Belgium
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lontzen, Belgium
- Average daylight in September: 12h and 4min
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 4min
The month with the most sunshine is August (Average sunshine: 8h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Lontzen, Belgium
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in September
Lontzen, Belgium
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Lontzen, Belgium
- Average cloud cover in September: 44
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 43).
Average visibility in September
Lontzen, Belgium
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The months with the lowest visibility are January, February, May, June, July, September, October, November and December (8km).
Lontzen, Belgium
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