September weather forecastCustines, France
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Custines, France, with an average temperature varying between 9.5°C (49.1°F) and 19.5°C (67.1°F).Temperature
With the arrival of September, Custines experiences a modest decline in average high-temperatures, transitioning from a warm 23.4°C (74.1°F) in August to a comfortable 19.5°C (67.1°F). The average temperature in Custines during September nights dips to a chilly 9.5°C (49.1°F).Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall in Custines is September, when the rain falls for 11 days and typically collects 35mm (1.38") of precipitation.Snowfall
In Custines, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 06:53 and sunset at 20:17. On the last day of September, sunrise is at 07:34 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Custines, France, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Custines, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.4°C).
The month with the lowest average high temperature is January (3.6°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).
Average pressure in September
Custines, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is November (1014.6mbar).
Average wind speed in September
Custines, France
- Average wind speed in September: 10.2km/h
The windiest month (with the highest average wind speed) is February (16.1km/h).
The calmest month (with the lowest average wind speed) is August (9.5km/h).
Average humidity in September
Custines, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Custines, France
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (66mm).
The driest month (with the least rainfall) is September (35mm).
Average rainfall days in September
Custines, France
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is September (11 days).
Average snowfall in September
Custines, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (57mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Custines, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Custines, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 12min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Custines, France
- Average sunshine days in September: 17 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in September
Custines, 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
Custines, France
- Average cloud cover in September: 37
The month with the most cloud cover is December (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Custines, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, June, July, August and September (9km).
The months with the lowest visibility are January, May, October, November and December (8km).
