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
The shift from August to September includes a small decrease in the average high-temperature, from a warm 25.3°C (77.5°F) to an agreeable 21.3°C (70.3°F). Throughout September in Authiou, a steady low-temperature average of 10.8°C (51.4°F) is noted.Humidity
In Authiou, the average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 7.1 days and accumulates 10mm (0.39") of precipitation.Snowfall
In Authiou, snow does not fall in April through September.Daylight
In Authiou, the average length of the day in September is 12h and 34min.On the first day of September, sunrise is at 07:06 and sunset at 20:26. On the last day of the month, sunrise is at 07:44 and sunset at 19:27 CEST.
Sunshine
The average sunshine in September is 7.9h.UV index
In Authiou, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Authiou in September?
What is the average humidity in September in Authiou?
What is the driest month in Authiou?
How much does it rain in Authiou in September?
When it does not snow in Authiou?
Does it snow in Authiou in September?
What is the average length of the day in September in Authiou?
When are sunrise and sunset in September in Authiou?
How many hours of sunshine does Authiou have in September?
How high is the UV index in September in Authiou?
Average temperature in September
Authiou, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in September
Authiou, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Authiou, France
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Authiou, France
- Average humidity in September: 75%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Authiou, France
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is December (28mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Authiou, France
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is September (7.1 days).
Average snowfall in September
Authiou, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Authiou, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Authiou, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Authiou, France
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Authiou, 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
Authiou, France
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Authiou, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August and September (9km).
The months with the lowest visibility are January, May, June, October, November and December (8km).
