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 commencement of September involves a temperature shift, with the average high-temperature dropping from a moderately hot 29.3°C (84.7°F) in August to a still warm 24.3°C (75.7°F). September is noted for a mean low-temperature of 14.3°C (57.7°F).Humidity
The average relative humidity in September is 73%.Rainfall
In Castel San Giovanni, in September, during 12.6 rainfall days, 55mm (2.17") of precipitation is typically accumulated. Throughout the year, there are 166.5 rainfall days, and 803mm (31.61") of precipitation is accumulated.Snowfall
In Castel San Giovanni, Italy, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 06:44 and sunset at 19:59. On the last day of September, sunrise is at 07:19 and sunset at 19:04 CEST.
Sunshine
The average sunshine in September in Castel San Giovanni, Italy, is 9.8h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the usual temperature for Castel San Giovanni in September?
What is the average humidity in September in Castel San Giovanni?
How much does it rain in Castel San Giovanni in September?
When it does not snow in Castel San Giovanni?
What is the average length of the day in September in Castel San Giovanni?
When is the sunrise / sunset in September in Castel San Giovanni?
How long on average sun shines in September in Castel San Giovanni?
What is the UV index intensity in September in Castel San Giovanni?
Average temperature in September
Castel San Giovanni, Italy
- Average high temperature in September: 24.3°C
The warmest month (with the highest average high temperature) is July (29.5°C).
The month with the lowest average high temperature is January (6.3°C).
- Average low temperature in September: 14.3°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is January (1.1°C).
Average pressure in September
Castel San Giovanni, Italy
- Average pressure in September: 1016.7mbar
The month with the highest atmospheric pressure is December (1019.6mbar).
The months with the lowest atmospheric pressure are April and May (1014.4mbar).
Average wind speed in September
Castel San Giovanni, Italy
- Average wind speed in September: 5.5km/h
The windiest month (with the highest average wind speed) is April (7km/h).
The calmest months (with the lowest average wind speed) are August and December (5.3km/h).
Average humidity in September
Castel San Giovanni, Italy
- Average humidity in September: 73%
The month with the highest relative humidity is November (84%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Castel San Giovanni, Italy
- Average rainfall in September: 55mm
The wettest month (with the highest rainfall) is November (96mm).
The driest month (with the least rainfall) is January (36mm).
Average rainfall days in September
Castel San Giovanni, Italy
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in September
Castel San Giovanni, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is January (40mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Castel San Giovanni, 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, October and November (0 days).
Average daylight in September /
Average sunshine in September
Castel San Giovanni, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is November (Average sunshine: 5h and 0min).
Average sunshine days in September
Castel San Giovanni, Italy
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Castel San Giovanni, Italy
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Castel San Giovanni, Italy
- Average cloud cover in September: 25
The month with the most cloud cover is November (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 19).
Average visibility in September
Castel San Giovanni, Italy
- Average visibility in September: 9km
The month with the highest visibility is June (10km).
The month with the lowest visibility is November (8km).
Castel San Giovanni, Italy
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