September weather forecastBertholène, France
September
Weather in September
September, the first month of the autumn in Bertholène, is still a pleasant month, with an average temperature ranging between min 9.8°C (49.6°F) and max 22.1°C (71.8°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 26.6°C (79.9°F) in August to an agreeable 22.1°C (71.8°F). Bertholène, in the heat of September, registers a significant plunge to a mean of 9.8°C (49.6°F) during the nights.Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Bertholène, France, is September, when the rain falls for 8.5 days and typically collects 28mm (1.1") of precipitation.Snowfall
June through September are months without snowfall in Bertholène, France.Daylight
The average length of the day in September is 12h and 31min.On the first day of September in Bertholène, sunrise is at 07:12 and sunset at 20:25. On the last day of the month, sunrise is at 07:46 and sunset at 19:31 CEST.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bertholène, France
- Average high temperature in September: 22.1°C
The warmest month (with the highest average high temperature) is August (26.6°C).
The month with the lowest average high temperature is January (6.6°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is July (13°C).
The coldest month (with the lowest average low temperature) is February (-1°C).
Average pressure in September
Bertholène, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).
Average wind speed in September
Bertholène, France
- Average wind speed in September: 7.3km/h
The windiest month (with the highest average wind speed) is March (10km/h).
The calmest months (with the lowest average wind speed) are August and September (7.3km/h).
Average humidity in September
Bertholène, France
- Average humidity in September: 73%
The months with the highest relative humidity are November and December (87%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Bertholène, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (63mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Bertholène, France
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in September
Bertholène, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (91mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Bertholène, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bertholène, France
- Average daylight in September: 12h and 30min
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: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 4h and 30min).
Average sunshine days in September
Bertholène, France
- Average sunshine days in September: 20.1 days
The month with the most sunshine days is September (20.1 days).
The months with the least sunshine days are April and June (14.5 days).
Average UV index in September
Bertholène, 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
Bertholène, France
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Bertholène, France
- Average visibility in September: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January, February, November and December (7km).
