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 sea temperature 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 advent of September sees the average high-temperature at a still pleasant 20.7°C (69.3°F), subtly shifted from August's 22.4°C (72.3°F). Le Croisic observes an average nighttime temperature of 12.9°C (55.2°F) during September.Humidity
July through September, with an average relative humidity of 76%, are the least humid months.Rainfall
In Le Croisic, France, during September, the rain falls for 9.7 days and regularly aggregates up to 23mm (0.91") of precipitation. In Le Croisic, France, during the entire year, the rain falls for 164.1 days and collects up to 535mm (21.06") of precipitation.Snowfall
March, May through October are months without snowfall in Le Croisic.Sea temperature
August and September, with an average sea temperature of 18.3°C (64.9°F), are months with the warmest seawater in Le Croisic.Note: The majority of people find swimming in 18.3°C (64.9°F) unenjoyable. As the water temperature decreases from 21°C (69.8°F) to 15°C (59°F), breathing becomes more challenging to control.
Daylight
In September, the average length of the day is 12h and 34min.On the first day of the month, sunrise is at 07:29 and sunset at 20:49. On the last day of September, sunrise is at 08:08 and sunset at 19:51 CEST.
Sunshine
In September, the average sunshine is 8.1h.UV index
The average daily maximum UV index in September in Le Croisic is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Le Croisic in September?
What are the least humid months in Le Croisic?
What is the average humidity in September in Le Croisic?
How many days does it rain in September in Le Croisic?
When it does not snow in Le Croisic?
What are the months with the warmest sea water in Le Croisic?
What is the sea water temperature in September in Le Croisic?
How many hours of daylight does Le Croisic have in September?
When is the sunrise / sunset in September in Le Croisic?
How long on average sun shines in September in Le Croisic?
What is the UV index reading in September in Le Croisic?
Average temperature in September
Le Croisic, France
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is July (22.6°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 12.9°C
The months with the highest average low temperature are July and August (14.8°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in September
Le Croisic, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Le Croisic, France
- Average wind speed in September: 14.8km/h
The windiest month (with the highest average wind speed) is February (21.1km/h).
The calmest month (with the lowest average wind speed) is August (14.1km/h).
Average humidity in September
Le Croisic, France
- Average humidity in September: 76%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are July, August and September (76%).
Average rainfall in September
Le Croisic, France
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (77mm).
The driest month (with the least rainfall) is July (22mm).
Average rainfall days in September
Le Croisic, France
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is January (18.1 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in September
Le Croisic, France
- Average snowfall in September: 0mm
The months with the highest snowfall are January, February, April, November and December (1mm).
The months with the least snowfall are March, May, June, July, August, September and October (0mm).
Average snowfall days in September
Le Croisic, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Le Croisic, France
- Average sea temperature in September: 18.3°C
The best months for swimming (with the highest average sea temperature) are August and September (18.3°C).
The coldest month (with the lowest average sea temperature) is February (9.6°C).
Average daylight in September /
Average sunshine in September
Le Croisic, 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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Le Croisic, France
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is November (10.5 days).
Average UV index in September
Le Croisic, France
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Le Croisic, France
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Le Croisic, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
