September weather forecastCasto, Italy
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Casto, Italy, with an average temperature ranging between min 10.4°C (50.7°F) and max 18.3°C (64.9°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's agreeable 22.4°C (72.3°F) to an enjoyable 18.3°C (64.9°F). Casto's nighttime temperature in September falls to an average of 10.4°C (50.7°F).Humidity
The average relative humidity in September is 80%.Rainfall
In September, the rain falls for 20.6 days. Throughout September, 98mm (3.86") of precipitation is accumulated. Throughout the year, there are 210.8 rainfall days, and 1353mm (53.27") of precipitation is accumulated.Snowfall
In Casto, snow does not fall in June through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 06:40 and sunset at 19:56. On the last day of September, sunrise is at 07:16 and sunset at 19:00 CEST.
Sunshine
In Casto, the average sunshine in September is 9.5h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Casto, Italy
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is August (22.4°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Casto, Italy
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is May (1014.8mbar).
Average wind speed in September
Casto, Italy
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is March (7.3km/h).
The calmest month (with the lowest average wind speed) is October (6km/h).
Average humidity in September
Casto, Italy
- Average humidity in September: 80%
The month with the highest relative humidity is November (82%).
The month with the lowest relative humidity is December (75%).
Average rainfall in September
Casto, Italy
- Average rainfall in September: 98mm
The wettest month (with the highest rainfall) is June (170mm).
The driest month (with the least rainfall) is January (42mm).
Average rainfall days in September
Casto, Italy
- Average rainfall days in September: 20.6 days
The month with the highest number of rainy days is July (27.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Casto, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (344mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Casto, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Casto, Italy
- Average daylight in September: 12h and 30min
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 30min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 5h and 18min).
Average sunshine days in September
Casto, Italy
- Average sunshine days in September: 6.1 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is June (1.2 days).
Average UV index in September
Casto, Italy
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Casto, Italy
- Average cloud cover in September: 32
The month with the most cloud cover is November (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in September
Casto, 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).
