September weather forecastCasteltermini, Italy
September
Weather in September
September, the first month of the autumn in Casteltermini, is also a moderately hot month, with temperature in the range of an average low of 20.7°C (69.3°F) and an average high of 26.4°C (79.5°F).Temperature
The transition to September results in a modest reduction in average high-temperature, moving from a hot 30.5°C (86.9°F) in August to a moderately hot 26.4°C (79.5°F). Casteltermini witnesses a consistent average low-temperature of 20.7°C (69.3°F) throughout September.Humidity
In Casteltermini, the average relative humidity in September is 67%.Rainfall
In September, the rain falls for 9.3 days. Throughout September, 32mm (1.26") of precipitation is accumulated. In Casteltermini, during the entire year, the rain falls for 120.4 days and collects up to 395mm (15.55") of precipitation.Snowfall
January through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of September in Casteltermini, sunrise is at 06:36 and sunset at 19:34. On the last day of the month, sunrise is at 07:00 and sunset at 18:50 CEST.
Sunshine
In Casteltermini, the average sunshine in September is 11.1h.UV index
In September, the average daily maximum UV index in Casteltermini is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Casteltermini, Italy
- Average high temperature in September: 26.4°C
The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is January (13.1°C).
- Average low temperature in September: 20.7°C
The month with the highest average low temperature is August (23.2°C).
The coldest month (with the lowest average low temperature) is February (7.3°C).
Average pressure in September
Casteltermini, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1019.2mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in September
Casteltermini, Italy
- Average wind speed in September: 11.3km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Casteltermini, Italy
- Average humidity in September: 67%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (56%).
Average rainfall in September
Casteltermini, Italy
- Average rainfall in September: 32mm
The wettest month (with the highest rainfall) is November (83mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Casteltermini, Italy
- Average rainfall days in September: 9.3 days
The months with the highest number of rainy days are January and November (14.8 days).
The month with the least rainy days is July (1.9 days).
Average snowfall days in September
Casteltermini, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.2 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Casteltermini, Italy
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 11h and 6min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Casteltermini, Italy
- Average sunshine days in September: 18.3 days
The month with the most sunshine days is July (28.2 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in September
Casteltermini, Italy
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is February (UV index 3).
Average cloud cover in September
Casteltermini, Italy
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Casteltermini, Italy
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
