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
September ushers in a minor alteration in Alessandria's climate, with the average high-temperature moving from August's moderately hot 29°C (84.2°F) to a still warm 24.1°C (75.4°F). Throughout September, Alessandria encounters an average temperature drop to a mild 13.8°C (56.8°F).Humidity
In September, the average relative humidity in Alessandria is 75%.Rainfall
In September, in Alessandria, the rain falls for 11.1 days. Throughout September, 39mm (1.54") of precipitation is accumulated. Throughout the year, there are 138.4 rainfall days, and 612mm (24.09") of precipitation is accumulated.Snowfall
In Alessandria, snow does not fall in April through October.Daylight
In September, the average length of the day in Alessandria is 12h and 31min.On the first day of the month, sunrise is at 06:48 and sunset at 20:02. On the last day of September, sunrise is at 07:22 and sunset at 19:07 CEST.
Sunshine
In Alessandria, Italy, the average sunshine in September is 9.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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 usual temperature for Alessandria in September?
What is the average humidity in September in Alessandria?
How many days does it rain in September in Alessandria?
When it does not snow in Alessandria?
How many hours of daylight does Alessandria have in September?
When is the sunrise / sunset in September in Alessandria?
How many hours of sunshine does Alessandria have in September?
What is the UV index intensity in September in Alessandria?
Average temperature in September
Alessandria, Italy
- Average high temperature in September: 24.1°C
The warmest month (with the highest average high temperature) is July (29.1°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 13.8°C
The month with the highest average low temperature is August (17.1°C).
The coldest month (with the lowest average low temperature) is January (0.5°C).
Average pressure in September
Alessandria, Italy
- Average pressure in September: 1016.5mbar
The month with the highest atmospheric pressure is December (1019.4mbar).
The month with the lowest atmospheric pressure is April (1014.2mbar).
Average wind speed in September
Alessandria, Italy
- Average wind speed in September: 5.5km/h
The windiest months (with the highest average wind speed) are March and April (7.1km/h).
The calmest month (with the lowest average wind speed) is December (5.2km/h).
Average humidity in September
Alessandria, Italy
- Average humidity in September: 75%
The month with the highest relative humidity is November (85%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Alessandria, Italy
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is November (106mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Alessandria, Italy
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Alessandria, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (44mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Alessandria, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Alessandria, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 36min).
The month with the least sunshine is November (Average sunshine: 4h and 42min).
Average sunshine days in September
Alessandria, Italy
- Average sunshine days in September: 17.5 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in September
Alessandria, 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, February, November and December (UV index 2).
Average cloud cover in September
Alessandria, Italy
- Average cloud cover in September: 28
The month with the most cloud cover is November (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in September
Alessandria, Italy
- Average visibility in September: 9km
The months with the highest visibility are April, May, June, July, August and September (9km).
The month with the lowest visibility is November (7km).
