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
In the transition to September, Colle Sestriere observes a minor drop in the average high-temperature, shifting from an enjoyable 18.3°C (64.9°F) in August to a still refreshing 14°C (57.2°F). Nighttime temperatures in September average to a cold 4°C (39.2°F) in Colle Sestriere.Humidity
In September, the average relative humidity in Colle Sestriere, Italy, is 76%.Rainfall
In Colle Sestriere, in September, during 13.6 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Colle Sestriere, during the entire year, the rain falls for 125.5 days and collects up to 745mm (29.33") of precipitation.Snowfall
Months with snowfall in Colle Sestriere are January through December. In Colle Sestriere, in September, snow falls for 1.7 days, with typically accumulated 21mm (0.83") of snow. In Colle Sestriere, during the entire year, snow falls for 105 days and aggregates up to 3486mm (137.24") of snow.Daylight
In Colle Sestriere, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 06:55 and sunset at 20:09. On the last day of September, in Colle Sestriere, sunrise is at 07:29 and sunset at 19:14 CEST.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Colle Sestriere is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 3 in September translates into the following recommendations:
Take precautions - Protection against sunburn is recommended. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Colle Sestriere in September?
What is the average humidity in September in Colle Sestriere?
How many days does it rain in September in Colle Sestriere?
How many days does it snow in September in Colle Sestriere?
What is the average length of the day in September in Colle Sestriere?
What time are sunrise and sunset in September in Colle Sestriere?
How many hours of sunshine does Colle Sestriere have in September?
How high is the UV index in September in Colle Sestriere?
Average temperature in September
Colle Sestriere, Italy
- Average high temperature in September: 14°C
The warmest months (with the highest average high temperature) are July and August (18.3°C).
The month with the lowest average high temperature is January (-1.8°C).
- Average low temperature in September: 4°C
The months with the highest average low temperature are July and August (7.2°C).
The coldest month (with the lowest average low temperature) is January (-10.4°C).
Average pressure in September
Colle Sestriere, Italy
- Average pressure in September: 1017.2mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is April (1014.5mbar).
Average wind speed in September
Colle Sestriere, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is December (8.9km/h).
The calmest month (with the lowest average wind speed) is August (5.7km/h).
Average humidity in September
Colle Sestriere, Italy
- Average humidity in September: 76%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Colle Sestriere, Italy
- Average rainfall in September: 37mm
The wettest month (with the highest rainfall) is November (120mm).
The driest month (with the least rainfall) is January (33mm).
Average rainfall days in September
Colle Sestriere, Italy
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is June (18.9 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in September
Colle Sestriere, Italy
- Average snowfall in September: 21mm
The month with the highest snowfall is November (970mm).
The month with the least snowfall is August (2mm).
Average snowfall days in September
Colle Sestriere, Italy
- Average snowfall days in September: 1.7 days
The month with the highest number of snowfall days is April (16.3 days).
The months with the least snowfall days are July and August (0.2 days).
Average daylight in September /
Average sunshine in September
Colle Sestriere, Italy
- 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Colle Sestriere, Italy
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is December (20.2 days).
The month with the least sunshine days is May (8.5 days).
Average UV index in September
Colle Sestriere, Italy
- 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 February and October (UV index 1).
Average cloud cover in September
Colle Sestriere, Italy
- Average cloud cover in September: 32
The month with the most cloud cover is April (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Colle Sestriere, 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 February, March, April and November (7km).
Colle Sestriere, Italy
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