September weather forecastCarnac, France
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Carnac, France, with an average temperature fluctuating between 19.7°C (67.5°F) and 13.2°C (55.8°F).Temperature
Carnac records a slight change with September's average high-temperatures adjusting to an enjoyable 19.7°C (67.5°F) from August's 21.2°C (70.2°F). Throughout the month of September, Carnac witnesses an average low-temperature of 13.2°C (55.8°F).Humidity
The months with the lowest humidity in Carnac are August and September, with an average relative humidity of 78%.Rainfall
The month with the least rainfall in Carnac is September, when the rain falls for 10 days and typically collects 24mm (0.94") of precipitation.Snowfall
January, March, May through November are months without snowfall in Carnac, France.Daylight
In September, the average length of the day in Carnac is 12h and 34min.On the first day of September, sunrise is at 07:31 and sunset at 20:52. On the last day of the month, sunrise is at 08:10 and sunset at 19:53 CEST.
Sunshine
The average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carnac, France
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).
Average pressure in September
Carnac, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013mbar).
Average wind speed in September
Carnac, France
- Average wind speed in September: 16.1km/h
The windiest month (with the highest average wind speed) is December (22.9km/h).
The calmest month (with the lowest average wind speed) is August (15.5km/h).
Average humidity in September
Carnac, France
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (83%).
The months with the lowest relative humidity are August and September (78%).
Average rainfall in September
Carnac, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (81mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Carnac, France
- Average rainfall days in September: 10 days
The month with the highest number of rainy days is January (17.7 days).
The month with the least rainy days is September (10 days).
Average snowfall in September
Carnac, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February, April and December (1mm).
The months with the least snowfall are January, March, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Carnac, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Carnac, France
- Average daylight in September: 12h and 36min
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 30min).
- Average sunshine in September: 8h and 0min
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
Carnac, France
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in September
Carnac, 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, March, April, November and December (UV index 3).
Average cloud cover in September
Carnac, France
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in September
Carnac, 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).





