September weather forecastCoti-Chiavari, France

September

Weather in September

The first month of the autumn, September, is still a pleasant month in Coti-Chiavari, France, with an average temperature ranging between min 16.5°C (61.7°F) and max 22.8°C (73°F).

Temperature

The arrival of September signals a subtle shift in temperature, down from a warm 26.3°C (79.3°F) in August to an agreeable 22.8°C (73°F). The average temperature drops to a comfortable 16.5°C (61.7°F) during the night in the month of September.

Humidity

In September, the average relative humidity is 71%.

Rainfall

In Coti-Chiavari, France, in September, it is raining for 12.2 days, with typically 53mm (2.09") of accumulated precipitation. In Coti-Chiavari, during the entire year, the rain falls for 149 days and collects up to 623mm (24.53") of precipitation.

Snowfall

In Coti-Chiavari, snow does not fall in January, March through December.

Daylight

In September, the average length of the day in Coti-Chiavari is 12h and 29min.
On the first day of September in Coti-Chiavari, sunrise is at 06:51 and sunset at 19:58. On the last day of the month, sunrise is at 07:21 and sunset at 19:08 CEST.

Sunshine

In Coti-Chiavari, the average sunshine in September is 10h.

UV index

In Coti-Chiavari, France, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 5 in September translates into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To guard against the harmful effects of the Sun, minimize exposure during midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.

Frequently asked questions

The average high-temperature, in September, in Coti-Chiavari, is 22.8°C (73°F), while the average low-temperature is 16.5°C (61.7°F).

The average relative humidity in September is 71%.

In Coti-Chiavari, France, during September, the rain falls for 12.2 days and regularly aggregates up to 53mm (2.09") of precipitation.

January, March through December are months without snowfall.

In September, the average day length in Coti-Chiavari is 12h and 29min.

In September, on the first day of the month, sunrise is at 06:51 and sunset at 19:58. On the last day of the month, sunrise is at 07:21 and sunset at 19:08 CEST.

The average sunshine duration in September in Coti-Chiavari, France, is 10h.

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Coti-Chiavari, France

  • Average high temperature in September: 22.8°C

The warmest month (with the highest average high temperature) is August (26.3°C).
The months with the lowest average high temperature are January and February (10.3°C).

  • Average low temperature in September: 16.5°C

The month with the highest average low temperature is August (18.9°C).
The coldest month (with the lowest average low temperature) is February (5.4°C).

Average pressure in September
Coti-Chiavari, France

  • Average pressure in September: 1015.4mbar

The month with the highest atmospheric pressure is December (1018mbar).
The month with the lowest atmospheric pressure is November (1013.5mbar).

Average wind speed in September
Coti-Chiavari, France

  • Average wind speed in September: 9km/h

The windiest month (with the highest average wind speed) is January (12.4km/h).
The calmest month (with the lowest average wind speed) is August (7.7km/h).

Average humidity in September
Coti-Chiavari, France

  • Average humidity in September: 71%

The months with the highest relative humidity are January and November (78%).
The month with the lowest relative humidity is August (67%).

Average rainfall in September
Coti-Chiavari, France

  • Average rainfall in September: 53mm

The wettest month (with the highest rainfall) is November (101mm).
The driest month (with the least rainfall) is August (25mm).

Average rainfall days in September
Coti-Chiavari, France

  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is November (16.2 days).
The month with the least rainy days is August (6.3 days).

Average snowfall in September
Coti-Chiavari, France

  • Average snowfall in September: 0mm

The month with the highest snowfall is February (15mm).
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0mm).

Average snowfall days in September
Coti-Chiavari, France

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Coti-Chiavari, France

  • Average daylight in September: 12h and 30min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 10h and 0min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).

Average sunshine days in September
Coti-Chiavari, France

  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is August (22.8 days).
The month with the least sunshine days is November (12.2 days).

Average UV index in September
Coti-Chiavari, France

  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Coti-Chiavari, France

  • Average cloud cover in September: 19

The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in September
Coti-Chiavari, 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).