September weather forecastSaint-Launeuc, France
September
Weather in September
September, the first month of the autumn in Saint-Launeuc, is still a comfortable month, with an average temperature ranging between max 19.7°C (67.5°F) and min 12.5°C (54.5°F).Temperature
The onset of September brings with it an average high-temperature of a comfortable 19.7°C (67.5°F), showing a negligible variation from the month before. Throughout September, the temperature tends to fall to a consistent average low of 12.5°C (54.5°F).Humidity
With an average relative humidity of 78%, September is the least humid month in Saint-Launeuc, France.Rainfall
September is the month with the least rainfall. Rain falls for 14.3 days and accumulates 28mm (1.1") of precipitation.Snowfall
In Saint-Launeuc, snow does not fall in May through October.Daylight
In Saint-Launeuc, the average length of the day in September is 12h and 35min.On the first day of September in Saint-Launeuc, France, sunrise is at 07:27 and sunset at 20:50. On the last day of the month, sunrise is at 08:08 and sunset at 19:50 CEST.
Sunshine
The average sunshine in September is 7.4h.UV index
The average daily maximum UV index in September in Saint-Launeuc, France, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint-Launeuc, France
- Average high temperature in September: 19.7°C
The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in September
Saint-Launeuc, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Saint-Launeuc, France
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is August (14.3km/h).
Average humidity in September
Saint-Launeuc, France
- Average humidity in September: 78%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Saint-Launeuc, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Saint-Launeuc, France
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is January (20.2 days).
The month with the least rainy days is September (14.3 days).
Average snowfall in September
Saint-Launeuc, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (11mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Launeuc, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 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
Saint-Launeuc, France
- Average daylight in September: 12h and 36min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Saint-Launeuc, France
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is September (12.5 days).
The months with the least sunshine days are January and November (6.6 days).
Average UV index in September
Saint-Launeuc, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Saint-Launeuc, 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 September (Cloud cover 39).
Average visibility in September
Saint-Launeuc, France
- Average visibility in September: 9km
The month with the highest visibility is March (10km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (9km).
