September weather forecastCourlans, France

September

Weather in September

The first month of the autumn, September, is also an agreeable month in Courlans, France, with an average temperature ranging between max 20.5°C (68.9°F) and min 10.2°C (50.4°F).

Temperature

September sees a slight reduction in average high-temperature, with a shift from a warm 25°C (77°F) in August to an agreeable 20.5°C (68.9°F). During the month of September, the temperature in Courlans generally drops to a low average of 10.2°C (50.4°F).

Humidity

The average relative humidity in September is 80%.

Rainfall

September is the month with the least rainfall. Rain falls for 11.6 days and accumulates 30mm (1.18") of precipitation.

Snowfall

May through September are months without snowfall in Courlans, France.

Daylight

In Courlans, the average length of the day in September is 12h and 33min.
On the first day of September in Courlans, sunrise is at 06:58 and sunset at 20:17. On the last day of the month, sunrise is at 07:36 and sunset at 19:19 CEST.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During September, 4 as the daily maximum UV index converts into the following advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Opt for tightly woven and loose clothing to enhance protection from the Sun.

Frequently asked questions

The high-temperature in Courlans during September is 20.5°C (68.9°F) and the low-temperature is 10.2°C (50.4°F).

In Courlans, the average relative humidity in September is 80%.

The month with the least rainfall in Courlans, France, is September, when the rain falls for 11.6 days and typically collects 30mm (1.18") of precipitation.

In September, in Courlans, France, the rain falls for 11.6 days. Throughout September, 30mm (1.18") of precipitation is accumulated.

In Courlans, France, snow does not fall in May through September.

In Courlans, France, in September, it doesn't snow. In October, it regularly snows.

The average day length in September in Courlans, France, is 12h and 33min.

On the first day of September, sunrise is at 06:58 and sunset at 20:17. On the last day of the month, sunrise is at 07:36 and sunset at 19:19 CEST.

The average sunshine duration in September in Courlans is 8.5h.

In September, the average daily maximum UV index in Courlans is 4. A UV Index reading 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 days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Courlans, France

  • Average high temperature in September: 20.5°C

The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (4.8°C).

  • Average low temperature in September: 10.2°C

The months with the highest average low temperature are July and August (13.3°C).
The coldest months (with the lowest average low temperature) are January and February (-0.5°C).

Average pressure in September
Courlans, France

  • Average pressure in September: 1018.7mbar

The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).

Average wind speed in September
Courlans, France

  • Average wind speed in September: 8km/h

The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (7.3km/h).

Average humidity in September
Courlans, France

  • Average humidity in September: 80%

The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).

Average rainfall in September
Courlans, France

  • Average rainfall in September: 30mm

The wettest month (with the highest rainfall) is December (83mm).
The driest month (with the least rainfall) is September (30mm).

Average rainfall days in September
Courlans, France

  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (11.5 days).

Average snowfall in September
Courlans, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is January (61mm).
The months with the least snowfall are May, June, July, August and September (0mm).

Average snowfall days in September
Courlans, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

  • Average daylight in September: 12h and 36min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 8h and 30min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are January and December (Average sunshine: 4h and 36min).

Average sunshine days in September
Courlans, France

  • Average sunshine days in September: 16 days

The months with the most sunshine days are September and October (16 days).
The month with the least sunshine days is June (10 days).

Average UV index in September
Courlans, France

  • Average UV index in September: 4

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September
Courlans, France

  • Average cloud cover in September: 35

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in September
Courlans, France

  • Average visibility in September: 8km

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