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 shift to September brings a decrease in the average high-temperature, falling from a hot 30.3°C (86.5°F) in August to a moderately hot 24.7°C (76.5°F). Throughout September, the temperature in Allerona falls to an average low of 13.8°C (56.8°F).Humidity
In Allerona, the average relative humidity in September is 71%.Rainfall
In Allerona, during September, the rain falls for 10.5 days and regularly aggregates up to 35mm (1.38") of precipitation. In Allerona, during the entire year, the rain falls for 140.1 days and collects up to 556mm (21.89") of precipitation.Snowfall
April through October are months without snowfall in Allerona.Daylight
In Allerona, 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, sunrise is at 07:08 and sunset at 18:55 CEST.
Sunshine
The average sunshine in September is 10.5h.UV index
In September, the average daily maximum UV index in Allerona is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Allerona?
What is the average humidity in September in Allerona?
How many days does it rain in September in Allerona?
When it does not snow in Allerona?
How many hours of daylight does Allerona have in September?
What time are sunrise and sunset in September in Allerona?
How many hours of sunshine does Allerona have in September?
How high is the UV index in September in Allerona?
Average temperature in September
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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
Allerona, 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).
