September weather forecast and climate
Lorient, France

The first month of the autumn, September, is still a comfortable month in Lorient, France, with temperature in the range of an average low of 12.6°C (54.7°F) and an average high of 19.3°C (66.7°F).

Temperature

In September, the average high-temperature is practically the same as in August - an enjoyable 19.3°C (66.7°F). In September, in Lorient, the average low-temperature is 12.6°C (54.7°F).

Humidity

Months with the lowest humidity in Lorient, France, are April, July and September, with an average relative humidity of 79%.

Rainfall

In Lorient, France, during 10.8 rainfall days, 28mm (1.1") of precipitation is typically accumulated. Throughout the year, in Lorient, there are 176.4 rainfall days, and 623mm (24.53") of precipitation is accumulated.

Snowfall

March, May through November are months without snowfall.

Daylight

In Lorient, the average length of the day is 12.6h.

Sunshine

In September, the average sunshine in Lorient is 7.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 4 translate into the following recommendations:
Take precautions - Protection against the skin and eye damage is obliged. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Lorient?

The average high-temperature, in September, is 19.3°C (66.7°F), while the average low-temperature is 12.6°C (54.7°F).

What is the least humid month in Lorient?

April, July and September, with an average relative humidity of 79%, are the least humid months.

What is the average humidity in September in Lorient?

In September, the average relative humidity is 79%.

How many days does it rain in September in Lorient?

In Lorient, in September, it is raining for 10.8 days, with typically 28mm (1.1") of accumulated precipitation.

When it does not snow in Lorient?

In Lorient snow does not fall in March, May through November.

What is the average length of the day in September in Lorient?

In Lorient, the average length of the day in September is 12.6h.

How long on average sun shines in September in Lorient?

The average sunshine in September in Lorient is 7.8h.

What is the UV index reading in September in Lorient?

The average daily maximum UV index in September in Lorient, France, is 4. A UV Index of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Lorient, France
  • Average high temperature in September: 19.3°C

The warmest months (with the highest average high temperature) are July and August (20.8°C).
Months with the lowest average high temperature are January and February (9.3°C).

  • Average low temperature in September: 12.6°C

The month with the highest average low temperature is July (14.3°C).
The coldest month (with the lowest average low temperature) is February (5.3°C).

Average pressure in September - Lorient, France
  • Average pressure in September: 1018.5mbar

The month with the highest atmospheric pressure is September (1018.5mbar).
The month with the lowest atmospheric pressure is November (1012.8mbar).

Average wind speed in September - Lorient, France
  • Average wind speed in September: 15.5km/h

The windiest months (with the highest average wind speed) are January, February and December (21.6km/h).
The calmest month (with the lowest average wind speed) is August (14.9km/h).

Average humidity in September - Lorient, France
  • Average humidity in September: 79%

Months with the highest relative humidity are January and December (84%).
Months with the lowest relative humidity are April, July and September (79%).

Average rainfall in September - Lorient, France
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is November (87mm).
The driest month (with the least rainfall) is July (27mm).

Average rainfall days in September - Lorient, France
  • Average rainfall days in September: 10.8 days

The month with the highest number of rainy days is December (17.8 days).
The month with the least rainy days is September (10.8 days).

Average snowfall in September - Lorient, France
  • Average snowfall in September: 0mm

The month with the highest snowfall is February (4mm).
Months with the least snowfall are March, May, June, July, August, September, October and November (0mm).

Average snowfall days in September - Lorient, France
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Lorient, France
  • Average daylight in September: 12.6h

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

  • Average sunshine in September: 7.8h

The month with the most sunshine is July (Average sunshine: 10.6h).
The month with the least sunshine is January (Average sunshine: 3.9h).

Average sunshine days in September - Lorient, France
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is November (8.5 days).

Average UV index in September - Lorient, France
  • Average UV index in September: 4

Months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September - Lorient, France
  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 35).

Average visibility in September - Lorient, France
  • Average visibility in September: 10km

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