September weather forecastAiffres, France

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Aiffres, France, with an average temperature varying between 12.5°C (54.5°F) and 22.6°C (72.7°F).

Temperature

September is characterized by a slight reduction in average high-temperature, easing from a warm 25.8°C (78.4°F) in August to a pleasant 22.6°C (72.7°F). An average temperature of 12.5°C (54.5°F) marks the nights in Aiffres in September.

Humidity

In September, the average relative humidity in Aiffres is 71%.

Rainfall

In Aiffres, in September, it is raining for 9.3 days, with typically 22mm (0.87") of accumulated precipitation. Throughout the year, in Aiffres, there are 155 rainfall days, and 425mm (16.73") of precipitation is accumulated.

Snowfall

In Aiffres, snow does not fall in April through October.

Daylight

The average length of the day in September in Aiffres is 12h and 32min.
On the first day of September in Aiffres, France, sunrise is at 07:22 and sunset at 20:40. On the last day of the month, sunrise is at 07:59 and sunset at 19:43 CEST.

Sunshine

In September, the average sunshine is 8.1h.

UV index

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Act with care - The suggestion to avoid sunburn is emphasized. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Frequently asked questions

An average high-temperature, in September, in Aiffres, is 22.6°C (72.7°F) and the average low-temperature is 12.5°C (54.5°F).

In September, the average relative humidity is 71%.

In September, in Aiffres, the rain falls for 9.3 days. Throughout September, 22mm (0.87") of precipitation is accumulated.

April through October are months without snowfall.

In Aiffres, France, the average day length in September is 12h and 32min.

On the first day of September, sunrise is at 07:22 and sunset at 20:40. On the last day of the month, sunrise is at 07:59 and sunset at 19:43 CEST.

The average sunshine duration in September in Aiffres is 8.1h.

The average daily maximum UV index in September in Aiffres, France, is 4. A UV Index value of 3 to 5 symbolizes a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Aiffres, France

  • Average high temperature in September: 22.6°C

The warmest month (with the highest average high temperature) is August (25.8°C).
The month with the lowest average high temperature is January (8.1°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (2.4°C).

Average pressure in September
Aiffres, France

  • Average pressure in September: 1018.1mbar

The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).

Average wind speed in September
Aiffres, France

  • Average wind speed in September: 11.9km/h

The windiest month (with the highest average wind speed) is February (17.1km/h).
The calmest month (with the lowest average wind speed) is August (10.9km/h).

Average humidity in September
Aiffres, France

  • Average humidity in September: 71%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (70%).

Average rainfall in September
Aiffres, France

  • Average rainfall in September: 22mm

The wettest month (with the highest rainfall) is November (61mm).
The driest months (with the least rainfall) are July and August (21mm).

Average rainfall days in September
Aiffres, France

  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is September (9.3 days).

Average snowfall in September
Aiffres, 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 and October (0mm).

Average snowfall days in September
Aiffres, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.2 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
Aiffres, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 8h and 6min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in September
Aiffres, France

  • Average sunshine days in September: 19.3 days

The month with the most sunshine days is September (19.3 days).
The month with the least sunshine days is November (12 days).

Average UV index in September
Aiffres, 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 and November (UV index 2).

Average cloud cover in September
Aiffres, France

  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Aiffres, France

  • Average visibility in September: 9km

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).