September weather forecastDuclair, France
September
Weather in September
September, the first month of the autumn in Duclair, is still a comfortable month, with an average temperature varying between 10.4°C (50.7°F) and 19.4°C (66.9°F).Temperature
Duclair observes a minor difference in average high-temperatures between August's 22.1°C (71.8°F) and September's 19.4°C (66.9°F). Duclair's temperature lowers to a mean of 10.4°C (50.7°F) during the nights in September.Humidity
The average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall in Duclair. Rain falls for 12.1 days and accumulates 24mm (0.94") of precipitation.Snowfall
In Duclair, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 36min.On the first day of September, sunrise is at 07:13 and sunset at 20:39. On the last day of the month, sunrise is at 07:55 and sunset at 19:37 CEST.
Sunshine
In September, the average sunshine is 7.1h.UV index
In Duclair, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Duclair, France
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Duclair, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Duclair, France
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Duclair, France
- Average humidity in September: 81%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Duclair, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Duclair, France
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (12.1 days).
Average snowfall in September
Duclair, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Duclair, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Duclair, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 6min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Duclair, France
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Duclair, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Duclair, France
- Average cloud cover in September: 47
The months with the most cloud cover are January and November (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 46).
Average visibility in September
Duclair, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April and December (9km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (8km).
