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
Stepping into September, Bollène observes a temperature decline, with the average high falling from August's 29.8°C (85.6°F) to a still warm 24.5°C (76.1°F). In September, the average low-temperature records at a refreshing 13.5°C (56.3°F) during the nights.Humidity
In September, the average relative humidity is 66%.Rainfall
In September, the rain falls for 8.4 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, in Bollène, there are 120.6 rainfall days, and 504mm (19.84") of precipitation is accumulated.Snowfall
In Bollène, France, snow does not fall in April through November.Daylight
In Bollène, France, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 07:04 and sunset at 20:17. On the last day of the month, sunrise is at 07:38 and sunset at 19:23 CEST.
Sunshine
In Bollène, the average sunshine in September is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Bollène in September?
What is the average humidity in September in Bollène?
How many days does it rain in September in Bollène?
When it does not snow in Bollène?
How many hours of daylight does Bollène have in September?
What time are sunrise and sunset in September in Bollène?
How long on average sun shines in September in Bollène?
What is the UV index intensity in September in Bollène?
Average temperature in September
Bollène, France
- Average high temperature in September: 24.5°C
The warmest month (with the highest average high temperature) is July (29.9°C).
The month with the lowest average high temperature is January (8.3°C).
- Average low temperature in September: 13.5°C
The month with the highest average low temperature is July (16.9°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).
Average pressure in September
Bollène, France
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is April (1014.7mbar).
Average wind speed in September
Bollène, France
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is February (14.2km/h).
The calmest month (with the lowest average wind speed) is September (11.1km/h).
Average humidity in September
Bollène, France
- Average humidity in September: 66%
The months with the highest relative humidity are November and December (79%).
The months with the lowest relative humidity are July and August (58%).
Average rainfall in September
Bollène, France
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (25mm).
Average rainfall days in September
Bollène, France
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is November (12.9 days).
The month with the least rainy days is July (7.6 days).
Average snowfall in September
Bollène, 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, October and November (0mm).
Average snowfall days in September
Bollène, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.6 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
Bollène, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Bollène, France
- Average sunshine days in September: 18.7 days
The months with the most sunshine days are July and August (19.8 days).
The month with the least sunshine days is April (14.9 days).
Average UV index in September
Bollène, 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, February and November (UV index 2).
Average cloud cover in September
Bollène, France
- Average cloud cover in September: 18
The month with the most cloud cover is November (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in September
Bollène, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, May, June, July and August (10km).
The months with the lowest visibility are January, April, September, October, November and December (9km).
