Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September signifies a gentle decline in Dumes's average high-temperature, easing from 28.5°C (83.3°F) in August to a still warm 25.1°C (77.2°F). Dumes observes a distinct decrease from peak daytime temperatures, with an average low-temperature of 12.9°C (55.2°F) throughout the month of September.Humidity
In September, the average relative humidity is 72%.Rainfall
In Dumes, during September, the rain falls for 11.7 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, in Dumes, there are 177.5 rainfall days, and 528mm (20.79") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In Dumes, the average length of the day in September is 12h and 30min.On the first day of September in Dumes, sunrise is at 07:26 and sunset at 20:37. On the last day of the month, sunrise is at 07:59 and sunset at 19:44 CEST.
Sunshine
The average sunshine in September is 8.6h.UV index
In Dumes, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Guard yourself - Precautionary measures against sun damage are advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Frequently asked questions
What are the temperatures in Dumes in September?
What is the average humidity in September in Dumes?
How much does it rain in Dumes in September?
When it does not snow in Dumes?
How many hours of daylight does Dumes have in September?
When are sunrise and sunset in September in Dumes?
How many hours of sunshine does Dumes have in September?
What is the UV index intensity in September in Dumes?
Average temperature in September
Dumes, France
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is August (28.5°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is July (15.5°C).
The coldest month (with the lowest average low temperature) is February (3.3°C).
Average pressure in September
Dumes, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.6mbar).
The months with the lowest atmospheric pressure are April and November (1015.6mbar).
Average wind speed in September
Dumes, France
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is March (8.5km/h).
The calmest month (with the lowest average wind speed) is September (6.6km/h).
Average humidity in September
Dumes, France
- Average humidity in September: 72%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Dumes, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is November (71mm).
The driest month (with the least rainfall) is August (28mm).
Average rainfall days in September
Dumes, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is October (11.5 days).
Average snowfall in September
Dumes, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Dumes, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Dumes, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 0min).
Average sunshine days in September
Dumes, France
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in September
Dumes, France
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Dumes, France
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility in September
Dumes, France
- Average visibility in September: 8km
The months with the highest visibility are May and June (9km).
The month with the lowest visibility is January (7km).
Dumes, France
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