September weather forecastGreffeil, France
September
Weather in September
September, the first month of the autumn in Greffeil, is still a warm month, with an average temperature fluctuating between 23.2°C (73.8°F) and 12.5°C (54.5°F).Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's 27.8°C (82°F) to a still warm 23.2°C (73.8°F). Greffeil, in September, witnesses an average low-temperature of 12.5°C (54.5°F).Humidity
In September, the average relative humidity is 70%.Rainfall
The months with the least rainfall in Greffeil are August and September Rain falls for 9 days and accumulates 16mm (0.63") of rain.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September in Greffeil is 12h and 29min.On the first day of September, sunrise is at 07:15 and sunset at 20:25. On the last day of the month, sunrise is at 07:47 and sunset at 19:33 CEST.
Sunshine
In September, the average sunshine in Greffeil, France, is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. When the Sun is at its strongest around midday, find shade and limit exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Greffeil, France
- Average high temperature in September: 23.2°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is January (8.1°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (15.4°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in September
Greffeil, France
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Greffeil, France
- Average wind speed in September: 11.2km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is September (11.2km/h).
Average humidity in September
Greffeil, France
- Average humidity in September: 70%
The months with the highest relative humidity are January, November and December (81%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Greffeil, France
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is October (43mm).
The driest months (with the least rainfall) are August and September (16mm).
Average rainfall days in September
Greffeil, France
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is April (13.5 days).
The month with the least rainy days is August (8.8 days).
Average snowfall in September
Greffeil, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Greffeil, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greffeil, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Greffeil, France
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Greffeil, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Greffeil, France
- Average cloud cover in September: 25
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Greffeil, France
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February, March, April, May, September, October, November and December (9km).
