September weather forecastGuer, France
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Guer, France, with an average temperature varying between 20.8°C (69.4°F) and 10.8°C (51.4°F).Temperature
The arrival of September marks a slight shift to an average high-temperature of a pleasant 20.8°C (69.4°F) from August's 23.1°C (73.6°F). Nighttime temperatures consistently average a cool 10.8°C (51.4°F) during September.Humidity
The months with the lowest humidity are July through September, with an average relative humidity of 78%.Rainfall
September is the month with the least rainfall in Guer, France. Rain falls for 8.4 days and accumulates 12mm (0.47") of precipitation.Snowfall
May through October are months without snowfall in Guer, France.Daylight
In Guer, the average length of the day in September is 12h and 34min.On the first day of the month, sunrise is at 07:27 and sunset at 20:49. On the last day of September, in Guer, France, sunrise is at 08:06 and sunset at 19:49 CEST.
Sunshine
In September, the average sunshine in Guer is 7.5h.UV index
The average daily maximum UV index in September in Guer, France, is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Guer, France
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (8.4°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (2.3°C).
Average pressure in September
Guer, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Guer, France
- Average wind speed in September: 12.1km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.7km/h).
Average humidity in September
Guer, France
- Average humidity in September: 78%
The month with the highest relative humidity is December (88%).
The months with the lowest relative humidity are July, August and September (78%).
Average rainfall in September
Guer, France
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is June (39mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in September
Guer, France
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is September (8.4 days).
Average snowfall in September
Guer, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February, March, April and December (2mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Guer, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Guer, 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 30min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Guer, France
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is May (12.1 days).
Average UV index in September
Guer, 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
Guer, France
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in September
Guer, France
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, June, July, October, November and December (9km).
The months with the lowest visibility are May, August and September (8km).
