Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a comfortable 18.3°C (64.9°F) in August to a moderate 13.7°C (56.7°F). Pralognan-la-Vanoise reports an average nighttime low-temperature of 3.6°C (38.5°F) in September.Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall in Pralognan-la-Vanoise is September, when the rain falls for 13.6 days and typically collects 38mm (1.5") of precipitation.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.5 snowfall days, it receives 1mm (0.04") of snow. In Pralognan-la-Vanoise, during the entire year, snow falls for 85.6 days and aggregates up to 2837mm (111.69") of snow.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:55 and sunset at 20:10. On the last day of the month, sunrise is at 07:30 and sunset at 19:15 CEST.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Pralognan-la-Vanoise is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What are the temperatures in Pralognan-la-Vanoise in September?
What is the average humidity in September in Pralognan-la-Vanoise?
What is the driest month in Pralognan-la-Vanoise?
How much does it rain in Pralognan-la-Vanoise in September?
When does it start snowing in Pralognan-la-Vanoise?
What is the average length of the day in September in Pralognan-la-Vanoise?
When is the sunrise / sunset in September in Pralognan-la-Vanoise?
How many hours of sunshine does Pralognan-la-Vanoise have in September?
What is the UV index intensity in September in Pralognan-la-Vanoise?
Average temperature in September
Pralognan-la-Vanoise, France
- Average high temperature in September: 13.7°C
The warmest month (with the highest average high temperature) is August (18.3°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in September: 3.6°C
The month with the highest average low temperature is August (6.1°C).
The coldest months (with the lowest average low temperature) are January and February (-11.8°C).
Average pressure in September
Pralognan-la-Vanoise, France
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is April (1014.9mbar).
Average wind speed in September
Pralognan-la-Vanoise, France
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is November (7.4km/h).
The calmest month (with the lowest average wind speed) is September (5.7km/h).
Average humidity in September
Pralognan-la-Vanoise, France
- Average humidity in September: 79%
The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Pralognan-la-Vanoise, France
- Average rainfall in September: 38mm
The wettest month (with the highest rainfall) is December (111mm).
The driest month (with the least rainfall) is September (38mm).
Average rainfall days in September
Pralognan-la-Vanoise, France
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in September
Pralognan-la-Vanoise, France
- Average snowfall in September: 1mm
The month with the highest snowfall is December (788mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Pralognan-la-Vanoise, France
- Average snowfall days in September: 0.5 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Pralognan-la-Vanoise, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Pralognan-la-Vanoise, France
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is April (8.9 days).
Average UV index in September
Pralognan-la-Vanoise, 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
Pralognan-la-Vanoise, France
- Average cloud cover in September: 34
The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Pralognan-la-Vanoise, France
- Average visibility in September: 8km
The months with the highest visibility are May, June, July, August, September, October and November (8km).
The months with the lowest visibility are January and February (6km).
Pralognan-la-Vanoise, France
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