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
Weather in September
Temperature
With the onset of September, the average high-temperature registers at a still agreeable 20.7°C (69.3°F), subtly different from August's 22.4°C (72.3°F). In the month of September, the average temperature in La Barre-de-Monts, France, dips to a cool 12.9°C (55.2°F) during the night.Humidity
The months with the lowest humidity in La Barre-de-Monts are July through September, with an average relative humidity of 76%.Rainfall
In La Barre-de-Monts, in September, it is raining for 9.7 days, with typically 23mm (0.91") of accumulated precipitation. In La Barre-de-Monts, France, during the entire year, the rain falls for 164.1 days and collects up to 535mm (21.06") of precipitation.Snowfall
In La Barre-de-Monts, snow does not fall in March, May through October.Sea temperature
In September, the average sea temperature is 18.8°C (65.8°F).Note: For swimming, a surface water temperature of 18.8°C (65.8°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).
Daylight
The average length of the day in September in La Barre-de-Monts is 12h and 33min.On the first day of September in La Barre-de-Monts, sunrise is at 07:28 and sunset at 20:47. On the last day of the month, sunrise is at 08:06 and sunset at 19:49 CEST.
Sunshine
In September, the average sunshine in La Barre-de-Monts is 8.1h.UV index
In La Barre-de-Monts, France, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
What are September temperatures in La Barre-de-Monts?
What are the least humid months in La Barre-de-Monts?
What is the average humidity in September in La Barre-de-Monts?
How many days does it rain in September in La Barre-de-Monts?
When it does not snow in La Barre-de-Monts?
How cold is the water in September in La Barre-de-Monts?
What is the average length of the day in September in La Barre-de-Monts?
When is the sunrise / sunset in September in La Barre-de-Monts?
How long on average sun shines in September in La Barre-de-Monts?
What is the UV index reading in September in La Barre-de-Monts?
Average temperature in September
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, France
- Average sea temperature in September: 18.8°C
The best month for swimming (with the highest average sea temperature) is August (19.1°C).
The coldest month (with the lowest average sea temperature) is February (9.8°C).
Average daylight in September /
Average sunshine in September
La Barre-de-Monts, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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
La Barre-de-Monts, 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).
La Barre-de-Monts, France
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