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
The start of September involves a subtle temperature drop, shifting from a warm 24.2°C (75.6°F) in August to a pleasant 20.6°C (69.1°F). A consistent average low of 15.9°C (60.6°F) is noted in Vallebona throughout September, only a small step down from its daytime high.Humidity
The average relative humidity in September in Vallebona, Italy, is 73%.Rainfall
In Vallebona, Italy, in September, during 14.7 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, there are 158.8 rainfall days, and 729mm (28.7") of precipitation is accumulated.Snowfall
January, April through December are months without snowfall.Daylight
In Vallebona, the average length of the day in September is 12h and 31min.On the first day of September in Vallebona, sunrise is at 06:53 and sunset at 20:04. On the last day of the month, sunrise is at 07:26 and sunset at 19:11 CEST.
Sunshine
In Vallebona, the average sunshine in September is 9.9h.UV index
The average daily maximum UV index in September in Vallebona is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Ensure safety - Recommendations to avert sunburn are presented. When the Sun is at its strongest around midday, find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Vallebona in September?
What is the average humidity in September in Vallebona?
How many days does it rain in September in Vallebona?
When it does not snow in Vallebona?
What is the average length of the day in September in Vallebona?
What time are sunrise and sunset in September in Vallebona?
How long on average sun shines in September in Vallebona?
How high is the UV index in September in Vallebona?
Average temperature in September
Vallebona, Italy
- Average high temperature in September: 20.6°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (8.5°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is August (19.2°C).
The coldest month (with the lowest average low temperature) is February (4.4°C).
Average pressure in September
Vallebona, Italy
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is April (1013.8mbar).
Average wind speed in September
Vallebona, Italy
- Average wind speed in September: 9.7km/h
The windiest months (with the highest average wind speed) are February and March (13.3km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Vallebona, Italy
- Average humidity in September: 73%
The month with the highest relative humidity is June (77%).
The months with the lowest relative humidity are January and December (71%).
Average rainfall in September
Vallebona, Italy
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is November (130mm).
The driest month (with the least rainfall) is January (25mm).
Average rainfall days in September
Vallebona, Italy
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is December (7.7 days).
Average snowfall in September
Vallebona, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are January, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Vallebona, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Vallebona, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in September
Vallebona, Italy
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is December (22.5 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Vallebona, Italy
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Vallebona, Italy
- Average cloud cover in September: 20
The months with the most cloud cover are February and November (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in September
Vallebona, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Vallebona, Italy
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