September weather forecast
Saint-Jacut-de-la-Mer, France

September

Weather in September

The first month of the autumn, September, is also an enjoyable month in Saint-Jacut-de-la-Mer, France, with an average temperature fluctuating between 12.5°C (54.5°F) and 19.7°C (67.5°F).

Temperature

Upon the beginning of September, Saint-Jacut-de-la-Mer's high-temperatures register at a comfortable 19.7°C (67.5°F), closely mirroring the preceding month. The average low-temperature, in September, in Saint-Jacut-de-la-Mer, is a cool 12.5°C (54.5°F).

Humidity

With an average relative humidity of 78%, September is the least humid month.

Rainfall

September is the month with the least rainfall. Rain falls for 14.3 days and accumulates 28mm (1.1") of precipitation.

Snowfall

In Saint-Jacut-de-la-Mer, snow does not fall in May through October.

Daylight

In Saint-Jacut-de-la-Mer, France, the average length of the day in September is 12h and 35min.
On the first day of the month, sunrise is at 07:26 and sunset at 20:50. On the last day of September, in Saint-Jacut-de-la-Mer, sunrise is at 08:07 and sunset at 19:49 CEST.

Sunshine

In Saint-Jacut-de-la-Mer, France, the average sunshine in September is 7.4h.

UV index

In September, the average daily maximum UV index in Saint-Jacut-de-la-Mer is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.

Frequently asked questions

What are September temperatures in Saint-Jacut-de-la-Mer?
The high-temperature, in September, in Saint-Jacut-de-la-Mer, is 19.7°C (67.5°F), while the low-temperature averages to 12.5°C (54.5°F).
What is the least humid month in Saint-Jacut-de-la-Mer?
With an average relative humidity of 78%, September is the least humid month in Saint-Jacut-de-la-Mer.
What is the average humidity in September in Saint-Jacut-de-la-Mer?
The average relative humidity in September in Saint-Jacut-de-la-Mer, France, is 78%.
What is the driest month in Saint-Jacut-de-la-Mer?
September is the month with the least rainfall in Saint-Jacut-de-la-Mer, France. Rain falls for 14.3 days and accumulates 28mm (1.1") of precipitation.
How much does it rain in Saint-Jacut-de-la-Mer in September?
In Saint-Jacut-de-la-Mer, France, in September, during 14.3 rainfall days, 28mm (1.1") of precipitation is typically accumulated.
When it does not snow in Saint-Jacut-de-la-Mer?
In Saint-Jacut-de-la-Mer, snow does not fall in May through October.
How many hours of daylight does Saint-Jacut-de-la-Mer have in September?
The average day length in September in Saint-Jacut-de-la-Mer is 12h and 35min.
When are sunrise and sunset in September in Saint-Jacut-de-la-Mer?
On the first day of September, sunrise is at 07:26 and sunset at 20:50. On the last day of the month, sunrise is at 08:07 and sunset at 19:49 CEST.
How many hours of sunshine does Saint-Jacut-de-la-Mer have in September?
In September, the average sunshine duration in Saint-Jacut-de-la-Mer, France, is 7.4h.
What is the UV index intensity in September in Saint-Jacut-de-la-Mer?
In Saint-Jacut-de-la-Mer, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Saint-Jacut-de-la-Mer, France
  • Average high temperature in September: 19.7°C

The warmest month (with the highest average high temperature) is August (21.3°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in September: 12.5°C

The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).

Average pressure in September
Saint-Jacut-de-la-Mer, 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 (1012.4mbar).

Average wind speed in September
Saint-Jacut-de-la-Mer, France
  • Average wind speed in September: 15.3km/h

The windiest month (with the highest average wind speed) is December (22.3km/h).
The calmest month (with the lowest average wind speed) is August (14.3km/h).

Average humidity in September
Saint-Jacut-de-la-Mer, France
  • Average humidity in September: 78%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is September (78%).

Average rainfall in September
Saint-Jacut-de-la-Mer, France
  • Average rainfall in September: 28mm

The wettest month (with the highest rainfall) is November (72mm).
The driest month (with the least rainfall) is September (28mm).

Average rainfall days in September
Saint-Jacut-de-la-Mer, France
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is January (20.2 days).
The month with the least rainy days is September (14.3 days).

Average snowfall in September
Saint-Jacut-de-la-Mer, France
  • Average snowfall in September: 0mm

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

Average snowfall days in September
Saint-Jacut-de-la-Mer, 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
Saint-Jacut-de-la-Mer, France
  • Average daylight in September: 12h and 4min

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 24min).

  • Average sunshine in September: 7h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in September
Saint-Jacut-de-la-Mer, France
  • Average sunshine days in September: 12.5 days

The month with the most sunshine days is September (12.5 days).
The months with the least sunshine days are January and November (6.6 days).

Average UV index in September
Saint-Jacut-de-la-Mer, France
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).

Average cloud cover in September
Saint-Jacut-de-la-Mer, France
  • Average cloud cover in September: 39

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 39).

Average visibility in September
Saint-Jacut-de-la-Mer, France
  • Average visibility in September: 9km

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

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