September weather forecastBacoli, Italy
September
Weather in September
September, the first month of the autumn in Bacoli, is still a warm month, with an average temperature varying between 19.7°C (67.5°F) and 25.8°C (78.4°F).Temperature
Bacoli experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 29.9°C (85.8°F) in August to a still warm 25.8°C (78.4°F). September in Bacoli sees the temperature falling to a mean low of 19.7°C (67.5°F).Humidity
In September, the average relative humidity is 64%.Rainfall
In Bacoli, in September, it is raining for 11.5 days, with typically 49mm (1.93") of accumulated precipitation. In Bacoli, during the entire year, the rain falls for 133.1 days and collects up to 538mm (21.18") of precipitation.Snowfall
March through December are months without snowfall.Sea temperature
In Bacoli, Italy, in September, the average water temperature is 24.8°C (76.6°F).Note: For individuals prone to feeling cold, swimming in 23°C (73.4°F) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 24.8°C (76.6°F).
Daylight
The average length of the day in September in Bacoli is 12h and 28min.On the first day of September, sunrise is at 06:31 and sunset at 19:36. On the last day of the month, sunrise is at 06:59 and sunset at 18:47 CEST.
Sunshine
In Bacoli, the average sunshine in September is 10.9h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, an average UV index of 6 transforms into the following instructions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The reflection of water and sand increases the UV radiation significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bacoli, Italy
- Average high temperature in September: 25.8°C
The warmest month (with the highest average high temperature) is August (29.9°C).
The month with the lowest average high temperature is January (12.3°C).
- Average low temperature in September: 19.7°C
The month with the highest average low temperature is August (22.8°C).
The coldest months (with the lowest average low temperature) are January and February (8°C).
Average pressure in September
Bacoli, Italy
- Average pressure in September: 1015.6mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is April (1014mbar).
Average wind speed in September
Bacoli, Italy
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is February (14.2km/h).
The calmest month (with the lowest average wind speed) is August (9km/h).
Average humidity in September
Bacoli, Italy
- Average humidity in September: 64%
The month with the highest relative humidity is January (73%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Bacoli, Italy
- Average rainfall in September: 49mm
The wettest month (with the highest rainfall) is November (115mm).
The driest month (with the least rainfall) is August (9mm).
Average rainfall days in September
Bacoli, Italy
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is November (14.9 days).
The month with the least rainy days is August (4.9 days).
Average snowfall in September
Bacoli, Italy
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Bacoli, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average sea temperature in September
Bacoli, Italy
- Average sea temperature in September: 24.8°C
The best month for swimming (with the highest average sea temperature) is August (26°C).
The coldest month (with the lowest average sea temperature) is February (13.9°C).
Average daylight in September /
Average sunshine in September
Bacoli, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 54min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Bacoli, Italy
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is July (23.8 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in September
Bacoli, 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 and December (UV index 3).
Average cloud cover in September
Bacoli, Italy
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Bacoli, 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).





