September weather forecastDechy, France
September
Weather in September
September, the first month of the autumn in Dechy, is still a refreshing month, with temperature in the range of an average low of 11.4°C (52.5°F) and an average high of 19.8°C (67.6°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's moderately hot 23.3°C (73.9°F) to a refreshing 19.8°C (67.6°F). In Dechy, the average low-temperature during the month of September is a fresh 11.4°C (52.5°F).Humidity
In Dechy, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall in Dechy is September, when the rain falls for 7 days and typically collects 5mm (0.2") of precipitation.Snowfall
In Dechy, snow does not fall in March through November.Daylight
In September, the average length of the day in Dechy is 12h and 37min.On the first day of September, sunrise is at 07:02 and sunset at 20:31. On the last day of the month, sunrise is at 07:46 and sunset at 19:27 CEST.
Sunshine
In September, the average sunshine in Dechy, France, is 7.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Dechy, France
- Average high temperature in September: 19.8°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 11.4°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in September
Dechy, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1012.4mbar).
Average wind speed in September
Dechy, France
- Average wind speed in September: 12.4km/h
The windiest months (with the highest average wind speed) are February and December (18.1km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in September
Dechy, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Dechy, France
- Average rainfall in September: 5mm
The wettest month (with the highest rainfall) is December (18mm).
The driest month (with the least rainfall) is September (5mm).
Average rainfall days in September
Dechy, France
- Average rainfall days in September: 7 days
The month with the highest number of rainy days is June (11.1 days).
The month with the least rainy days is September (7 days).
Average snowfall in September
Dechy, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Dechy, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Dechy, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Dechy, France
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is June (14.1 days).
Average UV index in September
Dechy, 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
Dechy, France
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are April and August (Cloud cover 41).
Average visibility in September
Dechy, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
