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
The move into September indicates a reduction in the average high-temperature, down from August's moderately hot 25.5°C (77.9°F) to a pleasant 20°C (68°F). Throughout September, a steady low-temperature average of 9.5°C (49.1°F) is noted.Humidity
In September, the average relative humidity is 76%.Rainfall
In Fossa, during September, the rain falls for 17.4 days and regularly aggregates up to 69mm (2.72") of precipitation. In Fossa, during the entire year, the rain falls for 211.4 days and collects up to 1009mm (39.72") of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September in Fossa, sunrise is at 06:31 and sunset at 19:39. On the last day of the month, sunrise is at 07:02 and sunset at 18:49 CEST.
Sunshine
In Fossa, the average sunshine in September is 10.3h.UV index
In Fossa, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are the temperatures in Fossa in September?
What is the average humidity in September in Fossa?
How many days does it rain in September in Fossa?
When it does not snow in Fossa?
How many hours of daylight does Fossa have in September?
What time are sunrise and sunset in September in Fossa?
How many hours of sunshine does Fossa have in September?
What is the UV index reading in September in Fossa?
Average temperature in September
Fossa, Italy
- Average high temperature in September: 20°C
The warmest month (with the highest average high temperature) is August (25.5°C).
The month with the lowest average high temperature is January (5°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is January (-1.6°C).
Average pressure in September
Fossa, 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 (1013.8mbar).
Average wind speed in September
Fossa, Italy
- Average wind speed in September: 5.9km/h
The windiest month (with the highest average wind speed) is February (8.5km/h).
The calmest month (with the lowest average wind speed) is August (5km/h).
Average humidity in September
Fossa, Italy
- Average humidity in September: 76%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Fossa, Italy
- Average rainfall in September: 69mm
The wettest month (with the highest rainfall) is May (127mm).
The driest month (with the least rainfall) is October (57mm).
Average rainfall days in September
Fossa, Italy
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is May (23.4 days).
The month with the least rainy days is December (13.2 days).
Average snowfall in September
Fossa, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (262mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Fossa, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Fossa, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Fossa, Italy
- Average sunshine days in September: 10 days
The month with the most sunshine days is December (12.8 days).
The month with the least sunshine days is May (5.8 days).
Average UV index in September
Fossa, Italy
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Fossa, Italy
- Average cloud cover in September: 30
The months with the most cloud cover are January and February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Fossa, Italy
- Average visibility in September: 9km
The months with the highest visibility are June, July, August and September (9km).
The month with the lowest visibility is January (7km).
Fossa, Italy
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