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
In September, the meteorological conditions change slightly, with the average high-temperature moving from an enjoyable 18°C (64.4°F) in August to a still refreshing 14.3°C (57.7°F). Châtillon-sur-Cluses records an average nighttime low-temperature of 4.9°C (40.8°F) throughout September.Humidity
In September, the average relative humidity is 81%.Rainfall
September is the month with the least rainfall in Châtillon-sur-Cluses. Rain falls for 11.9 days and accumulates 19mm (0.75") of precipitation.Snowfall
January through December are months with snowfall in Châtillon-sur-Cluses. In Châtillon-sur-Cluses, in September, snow falls for 2 days, with typically accumulated 8mm (0.31") of snow. In Châtillon-sur-Cluses, during the entire year, snow falls for 104.2 days and aggregates up to 1953mm (76.89") of snow.Daylight
In September, the average length of the day in Châtillon-sur-Cluses is 12h and 32min.On the first day of September in Châtillon-sur-Cluses, France, sunrise is at 06:54 and sunset at 20:12. On the last day of the month, sunrise is at 07:31 and sunset at 19:15 CEST.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Châtillon-sur-Cluses?
What is the average humidity in September in Châtillon-sur-Cluses?
What is the driest month in Châtillon-sur-Cluses?
How much does it rain in Châtillon-sur-Cluses in September?
How much does it snow in Châtillon-sur-Cluses in September?
What is the average length of the day in September in Châtillon-sur-Cluses?
When are sunrise and sunset in September in Châtillon-sur-Cluses?
How many hours of sunshine does Châtillon-sur-Cluses have in September?
What is the UV index intensity in September in Châtillon-sur-Cluses?
Average temperature in September
Châtillon-sur-Cluses, France
- Average high temperature in September: 14.3°C
The warmest month (with the highest average high temperature) is August (18°C).
The month with the lowest average high temperature is January (-1.2°C).
- Average low temperature in September: 4.9°C
The month with the highest average low temperature is July (7.9°C).
The coldest month (with the lowest average low temperature) is February (-9.6°C).
Average pressure in September
Châtillon-sur-Cluses, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Châtillon-sur-Cluses, France
- Average wind speed in September: 6.7km/h
The windiest month (with the highest average wind speed) is December (8.9km/h).
The calmest month (with the lowest average wind speed) is September (6.7km/h).
Average humidity in September
Châtillon-sur-Cluses, France
- Average humidity in September: 81%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Châtillon-sur-Cluses, France
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is May (66mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days in September
Châtillon-sur-Cluses, France
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is December (4.6 days).
Average snowfall in September
Châtillon-sur-Cluses, France
- Average snowfall in September: 8mm
The month with the highest snowfall is December (492mm).
The month with the least snowfall is July (1mm).
Average snowfall days in September
Châtillon-sur-Cluses, France
- Average snowfall days in September: 2 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are July and August (0.3 days).
Average daylight in September /
Average sunshine in September
Châtillon-sur-Cluses, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Châtillon-sur-Cluses, France
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (7.5 days).
Average UV index in September
Châtillon-sur-Cluses, France
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Châtillon-sur-Cluses, France
- Average cloud cover in September: 37
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Châtillon-sur-Cluses, France
- Average visibility in September: 7km
The months with the highest visibility are April, June, July, August, October, November and December (8km).
The months with the lowest visibility are January, February, March, May and September (7km).
Châtillon-sur-Cluses, France
Weather forecast for your location
2. Allow the app to use your location