September weather forecastSusa, Italy
September
Weather in September
September, the first month of the autumn in Susa, is still a refreshing month, with an average temperature fluctuating between 13.9°C (57°F) and 3.7°C (38.7°F).Temperature
September is characterized by a slight reduction in average high-temperature, easing from a comfortable 18.6°C (65.5°F) in August to a moderate 13.9°C (57°F). During September nights, Susa witnesses a consistent average temperature of 3.7°C (38.7°F).Humidity
In September, the average relative humidity is 76%.Rainfall
The month with the least rainfall in Susa is September, when the rain falls for 15.3 days and typically collects 34mm (1.34") of precipitation.Snowfall
Months with snowfall in Susa are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.4 snowfall days, it receives 1mm (0.04") of snow. In Susa, during the entire year, snow falls for 98.6 days and aggregates up to 2112mm (83.15") of snow.Daylight
The average length of the day in September is 12h and 32min.On the first day of September in Susa, Italy, sunrise is at 06:54 and sunset at 20:09. On the last day of the month, sunrise is at 07:29 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Susa is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Susa, Italy
- Average high temperature in September: 13.9°C
The warmest month (with the highest average high temperature) is August (18.6°C).
The month with the lowest average high temperature is January (-1.7°C).
- Average low temperature in September: 3.7°C
The month with the highest average low temperature is August (6.8°C).
The coldest month (with the lowest average low temperature) is January (-10.9°C).
Average pressure in September
Susa, Italy
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is December (1020.1mbar).
The month with the lowest atmospheric pressure is April (1014.6mbar).
Average wind speed in September
Susa, Italy
- Average wind speed in September: 6km/h
The windiest month (with the highest average wind speed) is December (9.1km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Susa, Italy
- Average humidity in September: 76%
The months with the highest relative humidity are February and March (87%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Susa, Italy
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (74mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in September
Susa, Italy
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is June (21.3 days).
The month with the least rainy days is December (6.2 days).
Average snowfall in September
Susa, Italy
- Average snowfall in September: 1mm
The month with the highest snowfall is November (431mm).
The months with the least snowfall are July and August (0mm).
Average snowfall days in September
Susa, Italy
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is March (17.6 days).
The month with the least snowfall days is August (0 days).
Average daylight in September /
Average sunshine in September
Susa, Italy
- 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 12min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Susa, Italy
- Average sunshine days in September: 12.5 days
The month with the most sunshine days is October (17.7 days).
The month with the least sunshine days is May (6.4 days).
Average UV index in September
Susa, Italy
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Susa, Italy
- Average cloud cover in September: 33
The month with the most cloud cover is April (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Susa, Italy
- Average visibility in September: 8km
The months with the highest visibility are June, July and August (9km).
The months with the lowest visibility are January, February, March, April and November (7km).
