September weather forecast
Sallanches, France

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Weather in September

September, the first month of the autumn in Sallanches, is still a mild month, with an average temperature ranging between min 4.9°C (40.8°F) and max 15.2°C (59.4°F).

Temperature

With the onset of September, the average high-temperature subtly recedes from August's comfortable 19.6°C (67.3°F) to a moderate 15.2°C (59.4°F). The nighttime temperature dips to a cold 4.9°C (40.8°F) on average during September.

Humidity

The average relative humidity in September is 80%.

Rainfall

The month with the least rainfall in Sallanches is September, when the rain falls for 13.8 days and typically collects 31mm (1.22") of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in September is 12h and 32min.
On the first day of September, sunrise is at 06:54 and sunset at 20:11. On the last day of the month, sunrise is at 07:31 and sunset at 19:15 CEST.

Sunshine

The average sunshine in September in Sallanches is 8.7h.

UV index

In Sallanches, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 3 in September suggests the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.

Frequently asked questions

What is the usual temperature for Sallanches in September?

September temperatures in Sallanches, France, vary between a high-temperature of 15.2°C (59.4°F) and a low-temperature of 4.9°C (40.8°F).

What is the average humidity in September in Sallanches?

The average relative humidity in September is 80%.

What is the driest month in Sallanches?

The month with the least rainfall is September, when the rain falls for 13.8 days and typically collects 31mm (1.22") of precipitation.

How much does it rain in Sallanches in September?

In Sallanches, France, in September, it is raining for 13.8 days, with typically 31mm (1.22") of accumulated precipitation.

When it does not snow in Sallanches?

June through September are months without snowfall in Sallanches, France.

Does it snow in Sallanches in September?

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

How many hours of daylight does Sallanches have in September?

In Sallanches, the average day length in September is 12h and 32min.

When are sunrise and sunset in September in Sallanches?

On the first day of September in Sallanches, France, sunrise is at 06:54 and sunset at 20:11. On the last day of the month, sunrise is at 07:31 and sunset at 19:15 CEST.

How many hours of sunshine does Sallanches have in September?

The average sunshine duration in September in Sallanches is 8.7h.

How high is the UV index in September in Sallanches?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.
Average humidity
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
Sallanches, France

Average temperature in September - Sallanches, France
  • Average high temperature in September: 15.2°C

The warmest month (with the highest average high temperature) is August (19.6°C).
The month with the lowest average high temperature is January (-0.4°C).

  • Average low temperature in September: 4.9°C

The months with the highest average low temperature are July and August (7.6°C).
The coldest month (with the lowest average low temperature) is February (-9.5°C).

Average pressure in September
Sallanches, France

Average pressure in September - Sallanches, France
  • Average pressure in September: 1018.2mbar

The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).

Average wind speed in September
Sallanches, France

Average wind speed in September - Sallanches, France
  • Average wind speed in September: 6.1km/h

The windiest month (with the highest average wind speed) is December (7.9km/h).
The calmest month (with the lowest average wind speed) is September (6.1km/h).

Average humidity in September
Sallanches, France

Average humidity in September - Sallanches, France
  • Average humidity in September: 80%

The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is August (76%).

Average rainfall in September
Sallanches, France

Average rainfall in September - Sallanches, France
  • Average rainfall in September: 31mm

The wettest month (with the highest rainfall) is May (99mm).
The driest month (with the least rainfall) is September (31mm).

Average rainfall days in September
Sallanches, France

Average rainfall days in September - Sallanches, France
  • Average rainfall days in September: 13.8 days

The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and February (7.5 days).

Average snowfall in September
Sallanches, France

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

The month with the highest snowfall is December (384mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September
Sallanches, France

Average snowfall days in September - Sallanches, France
  • Average snowfall days in September: 0.1 days

The month with the highest number of snowfall days is February (13.2 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in September / Average sunshine in September - Sallanches, France
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 12min).

Average sunshine days in September
Sallanches, France

Average sunshine days in September - Sallanches, France
  • Average sunshine days in September: 12.4 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (7.5 days).

Average UV index in September
Sallanches, France

Average UV index in September - Sallanches, France
  • Average UV index in September: 3

The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in September
Sallanches, France

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

The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Sallanches, France

Average visibility in September - Sallanches, France
  • Average visibility in September: 8km

The months with the highest visibility are April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February and March (7km).

Sallanches, France

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