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
With the onset of September, the average high-temperature subtly recedes from August's moderately hot 25.6°C (78.1°F) to an agreeable 21.9°C (71.4°F). September brings an average low-temperature of 15.3°C (59.5°F) to Altare.Humidity
In Altare, the average relative humidity in September is 73%.Rainfall
In Altare, in September, it is raining for 12.9 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, there are 151.4 rainfall days, and 753mm (29.65") of precipitation is accumulated.Snowfall
In Altare, snow does not fall in April through November.Daylight
The average length of the day in September in Altare is 12h and 31min.On the first day of September in Altare, sunrise is at 06:50 and sunset at 20:02. On the last day of the month, sunrise is at 07:23 and sunset at 19:09 CEST.
Sunshine
In Altare, the average sunshine in September is 9.8h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
What are the temperatures in Altare in September?
What is the average humidity in September in Altare?
How much does it rain in Altare in September?
When it does not snow in Altare?
How many hours of daylight does Altare have in September?
When is the sunrise / sunset in September in Altare?
How many hours of sunshine does Altare have in September?
How high is the UV index in September in Altare?
Average temperature in September
Altare, Italy
- Average high temperature in September: 21.9°C
The warmest month (with the highest average high temperature) is August (25.6°C).
The month with the lowest average high temperature is January (8.7°C).
- Average low temperature in September: 15.3°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 (3.8°C).
Average pressure in September
Altare, Italy
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1013.8mbar).
Average wind speed in September
Altare, Italy
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (12.3km/h).
The calmest month (with the lowest average wind speed) is July (7.6km/h).
Average humidity in September
Altare, Italy
- Average humidity in September: 73%
The months with the highest relative humidity are June and November (76%).
The months with the lowest relative humidity are January, February, March and December (72%).
Average rainfall in September
Altare, Italy
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is November (150mm).
The driest month (with the least rainfall) is January (37mm).
Average rainfall days in September
Altare, Italy
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is December (9.1 days).
Average snowfall in September
Altare, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Altare, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 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
Altare, 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 5min
The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 48min).
Average sunshine days in September
Altare, Italy
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Altare, Italy
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in September
Altare, Italy
- Average cloud cover in September: 22
The month with the most cloud cover is November (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Altare, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are April and November (9km).
Altare, Italy
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