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
A modest decline in the average high-temperature is seen during September, decreasing from a hot 31.1°C (88°F) in August to a moderately hot 26.3°C (79.3°F). The low-temperature in Alia averages to an enjoyable 18.9°C (66°F) during the nights of September.Humidity
In Alia, Italy, the average relative humidity in September is 66%.Rainfall
In Alia, Italy, during September, the rain falls for 13.1 days and regularly aggregates up to 49mm (1.93") of precipitation. Throughout the year, in Alia, Italy, there are 119.7 rainfall days, and 399mm (15.71") of precipitation is accumulated.Snowfall
April through November are months without snowfall in Alia, Italy.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 06:35 and sunset at 19:34. On the last day of the month, sunrise is at 07:00 and sunset at 18:49 CEST.
Sunshine
In Alia, Italy, the average sunshine in September is 11h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the temperature in September in Alia?
What is the average humidity in September in Alia?
How much does it rain in Alia in September?
When it does not snow in Alia?
What is the average length of the day in September in Alia?
When is the sunrise / sunset in September in Alia?
How long on average sun shines in September in Alia?
How high is the UV index in September in Alia?
Average temperature in September
Alia, Italy
- Average high temperature in September: 26.3°C
The warmest month (with the highest average high temperature) is August (31.1°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in September: 18.9°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).
Average pressure in September
Alia, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1014.3mbar).
Average wind speed in September
Alia, Italy
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is February (12.5km/h).
The calmest month (with the lowest average wind speed) is August (6.9km/h).
Average humidity in September
Alia, Italy
- Average humidity in September: 66%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is July (52%).
Average rainfall in September
Alia, Italy
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is October (72mm).
The driest month (with the least rainfall) is July (5mm).
Average rainfall days in September
Alia, Italy
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is October (14.8 days).
The month with the least rainy days is July (3.3 days).
Average snowfall in September
Alia, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is March (20mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Alia, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Alia, Italy
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in September
Alia, Italy
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is October (13.1 days).
Average UV index in September
Alia, Italy
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Alia, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 6).
Average visibility in September
Alia, Italy
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).
Alia, Italy
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