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
September's onset in Clemency corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 21.8°C (71.2°F) in August to an enjoyable 18°C (64.4°F). In the month of September, the nighttime temperature in Clemency dips to a steady average of 9°C (48.2°F).Humidity
In September, the average relative humidity in Clemency is 82%.Rainfall
In Clemency, during September, the rain falls for 12.9 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, there are 179.7 rainfall days, and 616mm (24.25") of precipitation is accumulated.Snowfall
June through September are months without snowfall in Clemency.Daylight
In September, the average length of the day in Clemency, Luxembourg, is 12h and 36min.On the first day of the month, sunrise is at 06:52 and sunset at 20:19. On the last day of September, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
In Clemency, the average sunshine in September is 7.9h.UV index
In Clemency, the average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
What is the temperature in September in Clemency?
What is the average humidity in September in Clemency?
How many days does it rain in September in Clemency?
When it does not snow in Clemency?
Does it snow in Clemency in September?
What is the average length of the day in September in Clemency?
What time are sunrise and sunset in September in Clemency?
How many hours of sunshine does Clemency have in September?
How high is the UV index in September in Clemency?
Average temperature in September
Clemency, Luxembourg
- Average high temperature in September: 18°C
The warmest months (with the highest average high temperature) are July and August (21.8°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 9°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (-1.1°C).
Average pressure in September
Clemency, Luxembourg
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.9mbar).
Average wind speed in September
Clemency, Luxembourg
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (9.8km/h).
Average humidity in September
Clemency, Luxembourg
- Average humidity in September: 82%
The month with the highest relative humidity is December (92%).
The months with the lowest relative humidity are April and August (78%).
Average rainfall in September
Clemency, Luxembourg
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (73mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Clemency, Luxembourg
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (11.6 days).
Average snowfall in September
Clemency, Luxembourg
- Average snowfall in September: 0mm
The months with the highest snowfall are January and December (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Clemency, Luxembourg
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clemency, Luxembourg
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 0min).
Average sunshine days in September
Clemency, Luxembourg
- Average sunshine days in September: 14.7 days
The months with the most sunshine days are April and September (14.7 days).
The month with the least sunshine days is December (9 days).
Average UV index in September
Clemency, Luxembourg
- Average UV index in September: 3
The month with the highest UV index is 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
Clemency, Luxembourg
- Average cloud cover in September: 42
The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Clemency, Luxembourg
- Average visibility in September: 8km
The months with the highest visibility are March, April and August (9km).
The month with the lowest visibility is November (7km).
Clemency, Luxembourg
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