September weather forecastCastelvetrano, Italy
September
Weather in September
September, the first month of the autumn in Castelvetrano, is also a moderately hot month, with an average temperature varying between 22.9°C (73.2°F) and 25.4°C (77.7°F).Temperature
The advent of September signifies a minor shift to an average high-temperature of a still moderately hot 25.4°C (77.7°F), aligning closely with August. September nights in Castelvetrano experience a minor temperature downturn to an agreeable 22.9°C (73.2°F).Humidity
The average relative humidity in September is 70%.Rainfall
In September, the rain falls for 8.4 days. Throughout September, 27mm (1.06") of precipitation is accumulated. Throughout the year, in Castelvetrano, there are 113.2 rainfall days, and 356mm (14.02") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 25min.On the first day of September, sunrise is at 06:39 and sunset at 19:37. On the last day of the month, sunrise is at 07:03 and sunset at 18:53 CEST.
Sunshine
In September, the average sunshine is 11h.UV index
In September, the average daily maximum UV index in Castelvetrano is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castelvetrano, Italy
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is February (13.8°C).
- Average low temperature in September: 22.9°C
The month with the highest average low temperature is August (24.9°C).
The coldest month (with the lowest average low temperature) is February (11.2°C).
Average pressure in September
Castelvetrano, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in September
Castelvetrano, Italy
- Average wind speed in September: 16.8km/h
The windiest months (with the highest average wind speed) are January and February (23.3km/h).
The calmest month (with the lowest average wind speed) is August (15.2km/h).
Average humidity in September
Castelvetrano, Italy
- Average humidity in September: 70%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and August (68%).
Average rainfall in September
Castelvetrano, Italy
- Average rainfall in September: 27mm
The wettest month (with the highest rainfall) is November (78mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Castelvetrano, Italy
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is January (16.3 days).
The months with the least rainy days are July and August (1.8 days).
Average daylight in September /
Average sunshine in September
Castelvetrano, 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 0min
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 6min).
Average sunshine days in September
Castelvetrano, Italy
- Average sunshine days in September: 19.6 days
The month with the most sunshine days is July (28.6 days).
The month with the least sunshine days is January (12 days).
Average UV index in September
Castelvetrano, Italy
- Average UV index in September: 6
The months with the highest UV index are July and August (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 4).
Average cloud cover in September
Castelvetrano, Italy
- Average cloud cover in September: 15
The month with the most cloud cover is January (Cloud cover 36).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Castelvetrano, 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).
