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 onset of September results in a decrease in the average high-temperature, receding from a tropical 30.3°C (86.5°F) in August to a warm 24.7°C (76.5°F). Nighttime temperatures in September average to a mild 13.8°C (56.8°F).Humidity
The average relative humidity in September in Chiusi is 71%.Rainfall
In September, in Chiusi, the rain falls for 10.5 days. Throughout September, 35mm (1.38") of precipitation is accumulated. Throughout the year, in Chiusi, Italy, there are 140.1 rainfall days, and 556mm (21.89") of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Chiusi, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 06:37 and sunset at 19:46. On the last day of September, in Chiusi, sunrise is at 07:08 and sunset at 18:55 CEST.
Sunshine
In September, the average sunshine in Chiusi is 10.5h.UV index
In Chiusi, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 in September translates into this advice:
Take precautions - Protection against skin and eye damage is obliged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Chiusi?
What is the average humidity in September in Chiusi?
How many days does it rain in September in Chiusi?
When it does not snow in Chiusi?
How many hours of daylight does Chiusi have in September?
When is the sunrise / sunset in September in Chiusi?
How long on average sun shines in September in Chiusi?
What is the UV index intensity in September in Chiusi?
Average temperature in September
Chiusi, Italy
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (17.2°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Chiusi, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is July (1013.7mbar).
Average wind speed in September
Chiusi, Italy
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is February (12.4km/h).
The calmest month (with the lowest average wind speed) is July (7.7km/h).
Average humidity in September
Chiusi, Italy
- Average humidity in September: 71%
The month with the highest relative humidity is November (85%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Chiusi, Italy
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Chiusi, Italy
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is August (7.7 days).
Average snowfall in September
Chiusi, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (104mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Chiusi, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Chiusi, 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 3min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in September
Chiusi, Italy
- Average sunshine days in September: 18 days
The month with the most sunshine days is August (22.1 days).
The month with the least sunshine days is April (12.4 days).
Average UV index in September
Chiusi, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Chiusi, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility in September
Chiusi, Italy
- Average visibility in September: 9km
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is November (8km).
