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 transition to September results in a modest reduction in average high-temperature, moving from a warm 24.4°C (75.9°F) in August to an agreeable 20.7°C (69.3°F). The average low-temperature of 11.5°C (52.7°F) is witnessed during September.Humidity
In September, the average relative humidity is 74%.Rainfall
September is the month with the least rainfall in Courlon-sur-Yonne, France. Rain falls for 11.2 days and accumulates 24mm (0.94") of precipitation.Snowfall
April through October are months without snowfall in Courlon-sur-Yonne.Daylight
In Courlon-sur-Yonne, France, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:05 and sunset at 20:28. On the last day of September, in Courlon-sur-Yonne, sunrise is at 07:45 and sunset at 19:28 CEST.
Sunshine
In September, the average sunshine is 7.9h.UV index
In Courlon-sur-Yonne, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Act with care - The need to guard against sun damage is communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Courlon-sur-Yonne in September?
What is the average humidity in September in Courlon-sur-Yonne?
What is the driest month in Courlon-sur-Yonne?
How many days does it rain in September in Courlon-sur-Yonne?
When it does not snow in Courlon-sur-Yonne?
What is the average length of the day in September in Courlon-sur-Yonne?
When are sunrise and sunset in September in Courlon-sur-Yonne?
How many hours of sunshine does Courlon-sur-Yonne have in September?
What is the UV index intensity in September in Courlon-sur-Yonne?
Average temperature in September
Courlon-sur-Yonne, France
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is August (24.4°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (1.5°C).
Average pressure in September
Courlon-sur-Yonne, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013.7mbar).
Average wind speed in September
Courlon-sur-Yonne, France
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is February (15.6km/h).
The calmest month (with the lowest average wind speed) is August (10km/h).
Average humidity in September
Courlon-sur-Yonne, France
- Average humidity in September: 74%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Courlon-sur-Yonne, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is June (58mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Courlon-sur-Yonne, France
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is September (11.2 days).
Average snowfall in September
Courlon-sur-Yonne, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (28mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Courlon-sur-Yonne, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Courlon-sur-Yonne, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- 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
Courlon-sur-Yonne, France
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in September
Courlon-sur-Yonne, 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
Courlon-sur-Yonne, 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 September (Cloud cover 36).
Average visibility in September
Courlon-sur-Yonne, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
