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
September's onset brings a negligible change in high-temperatures, falling from a warm 23.2°C (73.8°F) in August to a comfortable 18.8°C (65.8°F). In the month of September, Casso records a consistent average low-temperature of 9.6°C (49.3°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Casso, in September, it is raining for 19 days, with typically 91mm (3.58") of accumulated precipitation. In Casso, during the entire year, the rain falls for 217.7 days and collects up to 1342mm (52.83") of precipitation.Snowfall
In Casso, snow does not fall in May through October.Daylight
The average length of the day in September in Casso is 12h and 32min.On the first day of the month, sunrise is at 06:31 and sunset at 19:49. On the last day of September, in Casso, sunrise is at 07:08 and sunset at 18:52 CEST.
Sunshine
In Casso, the average sunshine in September is 9.8h.UV index
In Casso, Italy, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Casso in September?
What is the average humidity in September in Casso?
How much does it rain in Casso in September?
When it does not snow in Casso?
How many hours of daylight does Casso have in September?
What time are sunrise and sunset in September in Casso?
How many hours of sunshine does Casso have in September?
What is the UV index intensity in September in Casso?
Average temperature in September
Casso, Italy
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (23.2°C).
The month with the lowest average high temperature is January (3.1°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (-2.9°C).
Average pressure in September
Casso, Italy
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is May (1015mbar).
Average wind speed in September
Casso, Italy
- Average wind speed in September: 6.4km/h
The windiest month (with the highest average wind speed) is July (7km/h).
The calmest month (with the lowest average wind speed) is November (5.6km/h).
Average humidity in September
Casso, Italy
- Average humidity in September: 79%
The month with the highest relative humidity is November (83%).
The month with the lowest relative humidity is December (75%).
Average rainfall in September
Casso, Italy
- Average rainfall in September: 91mm
The wettest month (with the highest rainfall) is November (173mm).
The driest month (with the least rainfall) is January (50mm).
Average rainfall days in September
Casso, Italy
- Average rainfall days in September: 19 days
The months with the highest number of rainy days are May and July (25.3 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in September
Casso, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (50mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Casso, Italy
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Casso, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is November (Average sunshine: 5h and 12min).
Average sunshine days in September
Casso, Italy
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is December (17.9 days).
The month with the least sunshine days is June (3 days).
Average UV index in September
Casso, Italy
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Casso, Italy
- Average cloud cover in September: 33
The month with the most cloud cover is November (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Casso, Italy
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Casso, Italy
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