September weather forecastLouannec, France

September

Weather in September

September, the first month of the autumn in Louannec, is still a comfortable month, with temperature in the range of an average high of 18°C (64.4°F) and an average low of 12.7°C (54.9°F).

Temperature

The beginning of September reveals an average high-temperature of a still refreshing 18°C (64.4°F), showing minimal deviation from the previous month. Throughout September, Louannec anticipates an average low-temperature of 12.7°C (54.9°F).

Humidity

February through April, September and October, with an average relative humidity of 82%, are the least humid months in Louannec, France.

Rainfall

The month with the least rainfall in Louannec, France, is September, when the rain falls for 13.7 days and typically collects 28mm (1.1") of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 35min.
On the first day of the month, sunrise is at 07:31 and sunset at 20:55. On the last day of September, in Louannec, sunrise is at 08:12 and sunset at 19:54 CEST.

Sunshine

In September, the average sunshine in Louannec is 7.3h.

UV index

In Louannec, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Take precautions - Protection against sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.

Frequently asked questions

The average high-temperature and low-temperature during September are 18°C (64.4°F) and 12.7°C (54.9°F) respectively.

February through April, September and October, with an average relative humidity of 82%, are the least humid months.

In Louannec, France, the average relative humidity in September is 82%.

September is the month with the least rainfall in Louannec, France. Rain falls for 13.7 days and accumulates 28mm (1.1") of precipitation.

In Louannec, France, in September, it is raining for 13.7 days, with typically 28mm (1.1") of accumulated precipitation.

In Louannec, France, snow does not fall in April through October.

In Louannec, France, the average day length in September is 12h and 35min.

On the first day of September in Louannec, sunrise is at 07:31 and sunset at 20:55. On the last day of the month, sunrise is at 08:12 and sunset at 19:54 CEST.

In Louannec, France, the average sunshine duration in September is 7.3h.

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from 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
Louannec, France

  • Average high temperature in September: 18°C

The warmest month (with the highest average high temperature) is August (19.1°C).
The month with the lowest average high temperature is January (9°C).

  • Average low temperature in September: 12.7°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).

Average pressure in September
Louannec, France

  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is September (1018.2mbar).
The month with the lowest atmospheric pressure is November (1011.9mbar).

Average wind speed in September
Louannec, France

  • Average wind speed in September: 18km/h

The windiest months (with the highest average wind speed) are February and December (25.3km/h).
The calmest month (with the lowest average wind speed) is July (16.3km/h).

Average humidity in September
Louannec, France

  • Average humidity in September: 82%

The month with the highest relative humidity is June (85%).
The months with the lowest relative humidity are February, March, April, September and October (82%).

Average rainfall in September
Louannec, France

  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is November (82mm).
The driest month (with the least rainfall) is September (28mm).

Average rainfall days in September
Louannec, France

  • Average rainfall days in September: 13.7 days

The month with the highest number of rainy days is November (21.7 days).
The month with the least rainy days is September (13.7 days).

Average snowfall in September
Louannec, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).

Average snowfall days in September
Louannec, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Louannec, France

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).

  • Average sunshine in September: 7h and 18min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in September
Louannec, France

  • Average sunshine days in September: 11.1 days

The month with the most sunshine days is September (11.1 days).
The month with the least sunshine days is November (4.8 days).

Average UV index in September
Louannec, France

  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).

Average cloud cover in September
Louannec, France

  • Average cloud cover in September: 42

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are April, July and September (Cloud cover 42).

Average visibility in September
Louannec, France

  • Average visibility in September: 10km

The months with the highest visibility are March, April, June, July and September (10km).
The months with the lowest visibility are January, February, May, August, October, November and December (9km).