September weather forecastModane, France
September
Weather in September
September, the first month of the autumn in Modane, is still a mild month, with temperature in the range of an average low of 3.5°C (38.3°F) and an average high of 13.1°C (55.6°F).Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's enjoyable 17°C (62.6°F) to a still refreshing 13.1°C (55.6°F). An average low-temperature of 3.5°C (38.3°F) marks the nights throughout September.Humidity
The average relative humidity in September is 78%.Rainfall
The months with the least rainfall are January and September Rain falls for 11.2 days and accumulates 18mm (0.71") of rain.Snowfall
Months with snowfall in Modane are January through December. In September, in Modane, it is snowing for 2 days. Throughout September, 12mm (0.47") of snow is accumulated. In Modane, France, during the entire year, snow falls for 101.3 days and aggregates up to 1617mm (63.66") of snow.Daylight
In September, the average length of the day in Modane is 12h and 32min.On the first day of September in Modane, 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
In September, the average sunshine in Modane is 9h.UV index
In Modane, France, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index, 3 during September, leads to the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Modane, France
- Average high temperature in September: 13.1°C
The warmest month (with the highest average high temperature) is August (17°C).
The month with the lowest average high temperature is January (-2.3°C).
- Average low temperature in September: 3.5°C
The month with the highest average low temperature is August (5.8°C).
The coldest month (with the lowest average low temperature) is January (-12°C).
Average pressure in September
Modane, France
- Average pressure in September: 1017.7mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is April (1014.8mbar).
Average wind speed in September
Modane, France
- Average wind speed in September: 6km/h
The windiest month (with the highest average wind speed) is November (8.1km/h).
The calmest month (with the lowest average wind speed) is September (6km/h).
Average humidity in September
Modane, France
- Average humidity in September: 78%
The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Modane, France
- Average rainfall in September: 18mm
The wettest months (with the highest rainfall) are November and December (45mm).
The driest months (with the least rainfall) are January and September (18mm).
Average rainfall days in September
Modane, France
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is June (13.7 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
Modane, France
- Average snowfall in September: 12mm
The month with the highest snowfall is November (317mm).
The month with the least snowfall is July (2mm).
Average snowfall days in September
Modane, France
- Average snowfall days in September: 2 days
The months with the highest number of snowfall days are February and November (13.7 days).
The months with the least snowfall days are July and August (0.8 days).
Average daylight in September /
Average sunshine in September
Modane, France
- Average daylight in September: 12h and 30min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in September
Modane, France
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is December (20.2 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Modane, 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
Modane, France
- Average cloud cover in September: 34
The month with the most cloud cover is May (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Modane, France
- Average visibility in September: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January and February (6km).
