September weather forecastTrapani, Italy
September
Weather in September
September, the first month of the autumn in Trapani, is also a moderately hot month, with an average temperature varying between 23.1°C (73.6°F) and 25.4°C (77.7°F).Temperature
Trapani registers an average high-temperature of a still warm 25.4°C (77.7°F) at the commencement of September, closely related to the preceding month. Trapani notes an average temperature descent to a still warm 23.1°C (73.6°F) in September, a small shift from its daytime peak.Humidity
In September, the average relative humidity in Trapani is 70%.Rainfall
In Trapani, in September, it is raining for 8.2 days, with typically 25mm (0.98") of accumulated precipitation. Throughout the year, there are 111.3 rainfall days, and 353mm (13.9") of precipitation is accumulated.Sea temperature
In Trapani, Italy, the average seawater temperature in September is 24.9°C (76.8°F).Note: Cold sensitivities vary, but with the right amount of sunshine, a gentle breeze, and a warm day, a swim in 24.9°C (76.8°F) waters might be just right. Remember, Olympic swimmers are used to waters between 25°C (77°F) and 28°C (82.4°F).
Daylight
In Trapani, Italy, the average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 06:40 and sunset at 19:39. On the last day of September, in Trapani, sunrise is at 07:05 and sunset at 18:54 CEST.
Sunshine
In Trapani, the average sunshine in September is 10.8h.UV index
In September, the average daily maximum UV index in Trapani is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 6 in September suggests the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trapani, Italy
- Average high temperature in September: 25.4°C
The warmest month (with the highest average high temperature) is August (27.8°C).
The month with the lowest average high temperature is February (13.7°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is February (11.5°C).
Average pressure in September
Trapani, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1019mbar).
The month with the lowest atmospheric pressure is July (1014.2mbar).
Average wind speed in September
Trapani, Italy
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is January (23.7km/h).
The calmest months (with the lowest average wind speed) are July and August (14.5km/h).
Average humidity in September
Trapani, 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 (69%).
Average rainfall in September
Trapani, Italy
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (70mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days in September
Trapani, Italy
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is January (15.4 days).
The month with the least rainy days is July (2 days).
Average sea temperature in September
Trapani, Italy
- Average sea temperature in September: 24.9°C
The best month for swimming (with the highest average sea temperature) is August (26.1°C).
The coldest month (with the lowest average sea temperature) is February (14.3°C).
Average daylight in September /
Average sunshine in September
Trapani, Italy
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 10h and 48min
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 0min).
Average sunshine days in September
Trapani, Italy
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is July (27.9 days).
The month with the least sunshine days is January (12.8 days).
Average UV index in September
Trapani, 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
Trapani, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in September
Trapani, 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).
