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
September
Weather in September
Temperature
The arrival of September is marked by a minor reduction in average high-temperature, sliding from a warm 26.2°C (79.2°F) in August to a pleasant 22.2°C (72°F). September nights in Dun see a notable contrast from daytime highs, with the nighttime temperature averaging at a fresh 10.2°C (50.4°F).Humidity
The average relative humidity in September in Dun is 68%.Rainfall
September is the month with the least rainfall. Rain falls for 10.8 days and accumulates 24mm (0.94") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Dun, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 07:17 and sunset at 20:27. On the last day of the month, sunrise is at 07:49 and sunset at 19:35 CEST.
Sunshine
In Dun, France, the average sunshine in September is 8.9h.UV index
In Dun, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Dun in September?
What is the average humidity in September in Dun?
What is the driest month in Dun?
How many days does it rain in September in Dun?
When it does not snow in Dun?
Does it snow in Dun in September?
What is the average length of the day in September in Dun?
When are sunrise and sunset in September in Dun?
How many hours of sunshine does Dun have in September?
What is the UV index reading in September in Dun?
Average temperature in September
Dun, France
- Average high temperature in September: 22.2°C
The warmest month (with the highest average high temperature) is August (26.2°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Dun, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Dun, France
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is February (10.4km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Dun, France
- Average humidity in September: 68%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Dun, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is May (65mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Dun, France
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is October (9.2 days).
Average snowfall in September
Dun, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Dun, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Dun, France
- Average daylight in September: 12h and 3min
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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Dun, France
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in September
Dun, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Dun, France
- Average cloud cover in September: 24
The months with the most cloud cover are January and February (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 24).
Average visibility in September
Dun, 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).
