September weather forecastPenmarch, France

September

Weather in September

The first month of the autumn, September, is still a refreshing month in Penmarch, France, with temperature in the range of an average low of 14.5°C (58.1°F) and an average high of 18.4°C (65.1°F).

Temperature

September's advent presents an average high-temperature of a still comfortable 18.4°C (65.1°F), indicating a slight variation from the conditions of the previous month. Penmarch observes a consistent average low-temperature of 14.5°C (58.1°F) throughout September nights.

Humidity

The months with the lowest humidity are February through April and September, with an average relative humidity of 79%.

Rainfall

September is the month with the least rainfall. Rain falls for 8.4 days and accumulates 13mm (0.51") of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

The average length of the day in September is 12h and 34min.
On the first day of September in Penmarch, sunrise is at 07:36 and sunset at 20:57. On the last day of the month, sunrise is at 08:15 and sunset at 19:58 CEST.

Sunshine

In September, the average sunshine in Penmarch, France, is 7.8h.

UV index

June through September, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

In Penmarch, 18.4°C (65.1°F) is the average high-temperature and 14.5°C (58.1°F) is the average low-temperature during September.

The months with the lowest humidity in Penmarch are February through April and September, with an average relative humidity of 79%.

In September, the average relative humidity in Penmarch, France, is 79%.

The month with the least rainfall in Penmarch, France, is September, when the rain falls for 8.4 days and typically collects 13mm (0.51") of precipitation.

In September, in Penmarch, France, the rain falls for 8.4 days. Throughout September, 13mm (0.51") of precipitation is accumulated.

In Penmarch, snow does not fall in February through November.

In September, the average day length is 12h and 34min.

In September, on the first day of the month, sunrise is at 07:36 and sunset at 20:57. On the last day of the month, in Penmarch, France, sunrise is at 08:15 and sunset at 19:58 CEST.

In Penmarch, the average sunshine duration in September is 7.8h.

June through September, with an average maximum UV index of 5, are months with the highest UV index in Penmarch, France.

The average daily maximum UV index in September in Penmarch is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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 days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Penmarch, France

  • Average high temperature in September: 18.4°C

The warmest month (with the highest average high temperature) is July (19.4°C).
The month with the lowest average high temperature is February (9.8°C).

  • Average low temperature in September: 14.5°C

The month with the highest average low temperature is August (15.8°C).
The coldest month (with the lowest average low temperature) is February (7.1°C).

Average pressure in September
Penmarch, 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 (1012.6mbar).

Average wind speed in September
Penmarch, France

  • Average wind speed in September: 18.7km/h

The windiest month (with the highest average wind speed) is January (27.3km/h).
The calmest month (with the lowest average wind speed) is August (18km/h).

Average humidity in September
Penmarch, France

  • Average humidity in September: 79%

The months with the highest relative humidity are June, July, August and December (81%).
The months with the lowest relative humidity are February, March, April and September (79%).

Average rainfall in September
Penmarch, France

  • Average rainfall in September: 13mm

The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is September (13mm).

Average rainfall days in September
Penmarch, France

  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is January (15.6 days).
The month with the least rainy days is September (8.4 days).

Average snowfall days in September
Penmarch, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 7h and 48min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 36min).

Average sunshine days in September
Penmarch, France

  • Average sunshine days in September: 19.2 days

The month with the most sunshine days is September (19.2 days).
The months with the least sunshine days are January and November (10.8 days).

Average UV index in September
Penmarch, France

  • Average UV index in September: 5

The months with the highest UV index are June, July, August and September (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 3).

Average cloud cover in September
Penmarch, France

  • Average cloud cover in September: 37

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 37).

Average visibility in September
Penmarch, France

  • Average visibility in September: 10km

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