September weather forecastValdieri, Italy
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Valdieri, Italy, with temperature in the range of an average low of 9.8°C (49.6°F) and an average high of 20.7°C (69.3°F).Temperature
The start of September signals a gentle decrease in the average high-temperature, transitioning from a moderately hot 25.1°C (77.2°F) in August to a pleasant 20.7°C (69.3°F). In the month of September, the nighttime temperature dips to a steady average of 9.8°C (49.6°F).Humidity
In Valdieri, the average relative humidity in September is 72%.Rainfall
In September, in Valdieri, the rain falls for 11.7 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, there are 152.2 rainfall days, and 789mm (31.06") of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall in Valdieri, Italy. September is the first month it typically snows. Throughout September, in the average 0.1 snowfall days, it receives 1mm (0.04") of snow. In Valdieri, during the entire year, snow falls for 22.1 days and aggregates up to 758mm (29.84") of snow.Daylight
In Valdieri, the average length of the day in September is 12h and 31min.On the first day of September in Valdieri, sunrise is at 06:53 and sunset at 20:06. On the last day of the month, sunrise is at 07:27 and sunset at 19:12 CEST.
Sunshine
In Valdieri, the average sunshine in September is 9.7h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Valdieri, Italy
- Average high temperature in September: 20.7°C
The warmest month (with the highest average high temperature) is August (25.1°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (-2.2°C).
Average pressure in September
Valdieri, Italy
- Average pressure in September: 1016.3mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is April (1014.1mbar).
Average wind speed in September
Valdieri, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is March (7km/h).
The calmest month (with the lowest average wind speed) is November (5.7km/h).
Average humidity in September
Valdieri, Italy
- Average humidity in September: 72%
The months with the highest relative humidity are February, May and November (75%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Valdieri, Italy
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is November (146mm).
The driest month (with the least rainfall) is January (31mm).
Average rainfall days in September
Valdieri, Italy
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (19 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Valdieri, Italy
- Average snowfall in September: 1mm
The month with the highest snowfall is February (215mm).
The months with the least snowfall are May, June, July and August (0mm).
Average snowfall days in September
Valdieri, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (6.3 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Valdieri, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 42min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Valdieri, Italy
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in September
Valdieri, Italy
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Valdieri, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is November (Cloud cover 33).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Valdieri, Italy
- Average visibility in September: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).
