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
At the onset of September, Longroy records an average high-temperature of a comfortable 18.8°C (65.8°F), showing little deviation from the preceding month. In Longroy, an average temperature of 11.6°C (52.9°F) is noted during September nights.Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 13.6 days. Throughout September, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 190.2 rainfall days, and 547mm (21.54") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Longroy.Daylight
In Longroy, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 07:09 and sunset at 20:37. On the last day of September, in Longroy, sunrise is at 07:53 and sunset at 19:34 CEST.
Sunshine
In September, the average sunshine is 7.3h.UV index
In September, the average daily maximum UV index in Longroy, France, is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What are September temperatures in Longroy?
What is the average humidity in September in Longroy?
How much does it rain in Longroy in September?
When it does not snow in Longroy?
How many hours of daylight does Longroy have in September?
What time are sunrise and sunset in September in Longroy?
How many hours of sunshine does Longroy have in September?
What is the UV index reading in September in Longroy?
Average temperature in September
Longroy, France
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (21.7°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.8°C).
Average pressure in September
Longroy, France
- 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 (1012.2mbar).
Average wind speed in September
Longroy, France
- Average wind speed in September: 14km/h
The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is August (13.4km/h).
Average humidity in September
Longroy, France
- Average humidity in September: 80%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Longroy, France
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Longroy, France
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (17.4 days).
The month with the least rainy days is April (13.5 days).
Average snowfall in September
Longroy, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (29mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Longroy, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 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
Longroy, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Longroy, France
- Average sunshine days in September: 13.5 days
The months with the most sunshine days are March and April (13.7 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in September
Longroy, France
- 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
Longroy, France
- Average cloud cover in September: 42
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in September
Longroy, France
- 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).
Longroy, France
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