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
September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 24.2°C (75.6°F) in August to a refreshing 19.6°C (67.3°F). In the month of September, Chazelles-sur-Lyon records a consistent average low-temperature of 9.5°C (49.1°F).Humidity
The average relative humidity in September in Chazelles-sur-Lyon is 78%.Rainfall
In Chazelles-sur-Lyon, during September, the rain falls for 13.4 days and regularly aggregates up to 33mm (1.3") of precipitation. In Chazelles-sur-Lyon, during the entire year, the rain falls for 177.1 days and collects up to 594mm (23.39") of precipitation.Snowfall
In Chazelles-sur-Lyon, snow does not fall in June through September.Daylight
In Chazelles-sur-Lyon, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 07:04 and sunset at 20:20. On the last day of September, sunrise is at 07:40 and sunset at 19:24 CEST.
Sunshine
The average sunshine in September in Chazelles-sur-Lyon is 8.1h.UV index
The average daily maximum UV index in September in Chazelles-sur-Lyon is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Chazelles-sur-Lyon?
What is the average humidity in September in Chazelles-sur-Lyon?
How much does it rain in Chazelles-sur-Lyon in September?
When it does not snow in Chazelles-sur-Lyon?
Does it snow in Chazelles-sur-Lyon in September?
How many hours of daylight does Chazelles-sur-Lyon have in September?
When are sunrise and sunset in September in Chazelles-sur-Lyon?
How long on average sun shines in September in Chazelles-sur-Lyon?
What is the UV index reading in September in Chazelles-sur-Lyon?
Average temperature in September
Chazelles-sur-Lyon, France
- Average high temperature in September: 19.6°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (4.7°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (-1.3°C).
Average pressure in September
Chazelles-sur-Lyon, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Chazelles-sur-Lyon, France
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).
Average humidity in September
Chazelles-sur-Lyon, France
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (86%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Chazelles-sur-Lyon, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is May (67mm).
The driest month (with the least rainfall) is February (32mm).
Average rainfall days in September
Chazelles-sur-Lyon, France
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is October (11.9 days).
Average snowfall in September
Chazelles-sur-Lyon, France
- Average snowfall in September: 0mm
The month with the highest snowfall is November (86mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Chazelles-sur-Lyon, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chazelles-sur-Lyon, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Chazelles-sur-Lyon, France
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (16.4 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in September
Chazelles-sur-Lyon, 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
Chazelles-sur-Lyon, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Chazelles-sur-Lyon, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
Chazelles-sur-Lyon, France
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