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
September
Weather in September
Temperature
September ushers in an average high-temperature of a still agreeable 20.7°C (69.3°F), aligning closely with the preceding month. During September, La Chapelle-Achard sees a mean low-temperature of 15°C (59°F).Humidity
September is the least humid month in La Chapelle-Achard, with an average relative humidity of 73%.Rainfall
September is the month with the least rainfall in La Chapelle-Achard, France. Rain falls for 10.4 days and accumulates 29mm (1.14") of precipitation.Snowfall
January through November are months without snowfall.Daylight
The average length of the day in September is 12h and 33min.On the first day of the month, sunrise is at 07:27 and sunset at 20:45. On the last day of September, sunrise is at 08:04 and sunset at 19:48 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 5 during September leads to these instructions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in La Chapelle-Achard?
What is the least humid month in La Chapelle-Achard?
What is the average humidity in September in La Chapelle-Achard?
What is the driest month in La Chapelle-Achard?
How much does it rain in La Chapelle-Achard in September?
When it does not snow in La Chapelle-Achard?
What is the average length of the day in September in La Chapelle-Achard?
When are sunrise and sunset in September in La Chapelle-Achard?
How many hours of sunshine does La Chapelle-Achard have in September?
When is the highest UV index in La Chapelle-Achard?
What is the UV index intensity in September in La Chapelle-Achard?
Average temperature in September
La Chapelle-Achard, France
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is July (22.2°C).
The months with the lowest average high temperature are January and February (9.9°C).
- Average low temperature in September: 15°C
The month with the highest average low temperature is August (16.8°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in September
La Chapelle-Achard, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The month with the lowest atmospheric pressure is November (1013.8mbar).
Average wind speed in September
La Chapelle-Achard, France
- Average wind speed in September: 16.8km/h
The windiest month (with the highest average wind speed) is December (24.2km/h).
The calmest month (with the lowest average wind speed) is August (15.8km/h).
Average humidity in September
La Chapelle-Achard, France
- Average humidity in September: 73%
The months with the highest relative humidity are January and December (81%).
The month with the lowest relative humidity is September (73%).
Average rainfall in September
La Chapelle-Achard, France
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in September
La Chapelle-Achard, France
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is January (19.3 days).
The month with the least rainy days is September (10.4 days).
Average snowfall in September
La Chapelle-Achard, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (1mm).
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
La Chapelle-Achard, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
La Chapelle-Achard, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in September
La Chapelle-Achard, France
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is January (9.2 days).
Average UV index in September
La Chapelle-Achard, France
- Average UV index in September: 5
The months with the highest UV index are May, June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).
Average cloud cover in September
La Chapelle-Achard, France
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
La Chapelle-Achard, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
