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
September
Weather in September
Temperature
The decrease of average high-temperatures is mild in September, with a decline from a hot 31.2°C (88.2°F) in August to a moderately hot 25.4°C (77.7°F). Graffignano, during September, witnesses an average low-temperature of 15.2°C (59.4°F).Humidity
The average relative humidity in September in Graffignano is 69%.Rainfall
In Graffignano, in September, during 12.2 rainfall days, 44mm (1.73") of precipitation is typically accumulated. In Graffignano, during the entire year, the rain falls for 137.9 days and collects up to 479mm (18.86") of precipitation.Snowfall
In Graffignano, snow does not fall in April through December.Daylight
In September, the average length of the day is 12h and 29min.On the first day of September in Graffignano, sunrise is at 06:36 and sunset at 19:45. On the last day of the month, sunrise is at 07:07 and sunset at 18:54 CEST.
Sunshine
In September, the average sunshine is 10.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Graffignano?
What is the average humidity in September in Graffignano?
How many days does it rain in September in Graffignano?
When it does not snow in Graffignano?
How many hours of daylight does Graffignano have in September?
What time are sunrise and sunset in September in Graffignano?
How many hours of sunshine does Graffignano have in September?
What is the UV index reading in September in Graffignano?
Average temperature in September
Graffignano, Italy
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (31.2°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 15.2°C
The month with the highest average low temperature is August (18.3°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average pressure in September
Graffignano, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The months with the lowest atmospheric pressure are April and July (1014mbar).
Average wind speed in September
Graffignano, Italy
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is February (13.8km/h).
The calmest month (with the lowest average wind speed) is July (8.6km/h).
Average humidity in September
Graffignano, Italy
- Average humidity in September: 69%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Graffignano, Italy
- Average rainfall in September: 44mm
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (20mm).
Average rainfall days in September
Graffignano, Italy
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is November (14.1 days).
The month with the least rainy days is August (5.8 days).
Average snowfall in September
Graffignano, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Graffignano, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Graffignano, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 4min
The months with the most sunshine are July and August (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Graffignano, Italy
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is November (14 days).
Average UV index in September
Graffignano, Italy
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Graffignano, Italy
- Average cloud cover in September: 21
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Graffignano, Italy
- Average visibility in September: 10km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
