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
With the onset of September, Mont-Louis's climate undergoes a slight change as the average high-temperature moves from an agreeable 20.3°C (68.5°F) in August to a comfortable 16.3°C (61.3°F). During September, Mont-Louis experiences a consistent low-temperature average of 5.8°C (42.4°F).Humidity
The average relative humidity in September in Mont-Louis is 78%.Rainfall
In Mont-Louis, in September, it is raining for 14.6 days, with typically 59mm (2.32") of accumulated precipitation. In Mont-Louis, France, during the entire year, the rain falls for 160.5 days and collects up to 840mm (33.07") of precipitation.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 4mm (0.16") of snow. In Mont-Louis, during the entire year, snow falls for 54 days and aggregates up to 1387mm (54.61") of snow.Daylight
In September, the average length of the day in Mont-Louis is 12h and 29min.On the first day of the month, sunrise is at 07:17 and sunset at 20:25. On the last day of September, in Mont-Louis, sunrise is at 07:48 and sunset at 19:34 CEST.
Sunshine
The average sunshine in September in Mont-Louis is 8.1h.UV index
The average daily maximum UV index in September in Mont-Louis is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in September leads to these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Mont-Louis in September?
What is the average humidity in September in Mont-Louis?
How much does it rain in Mont-Louis in September?
When does it start to snow in Mont-Louis?
How many hours of daylight does Mont-Louis have in September?
When are sunrise and sunset in September in Mont-Louis?
How many hours of sunshine does Mont-Louis have in September?
How high is the UV index in September in Mont-Louis?
Average temperature in September
Mont-Louis, France
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 5.8°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is February (-6°C).
Average pressure in September
Mont-Louis, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Mont-Louis, France
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Mont-Louis, France
- Average humidity in September: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Mont-Louis, France
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is April (96mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Mont-Louis, France
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is April (19.5 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Mont-Louis, France
- Average snowfall in September: 4mm
The month with the highest snowfall is January (482mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Mont-Louis, France
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Mont-Louis, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 42min).
Average sunshine days in September
Mont-Louis, France
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is April (7.2 days).
Average UV index in September
Mont-Louis, France
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Mont-Louis, France
- Average cloud cover in September: 37
The month with the most cloud cover is April (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Mont-Louis, France
- Average visibility in September: 8km
The month with the highest visibility is December (9km).
The month with the lowest visibility is April (7km).
