September weather forecastPositano, Italy
September
Weather in September
September holds a mixed bag of weather conditions. While the upper range of temperatures plummet from August's high, the city remains quite warm. A notable feature of this month is the re-emergence of rainfall, which curbs the long-standing low-humidity phase. Despite the weather changes, the city continues to offer significant daylight hours for sightseeing and exploration. Moreover, the sea remains inviting at 24.8°C (76.6°F), ensuring the continuity of maritime activities and beach lounging.Temperature
September marks a gentle change in average high-temperature, declining from August's 28.1°C (82.6°F) to a still moderately hot 24.9°C (76.8°F). During the nights of September, Positano records an average low-temperature of 21.4°C (70.5°F), reflecting a modest decrease from daytime highs.Humidity
The least humid month in Positano is September, with an average relative humidity of 65%.Rainfall
In Positano, in September, it is raining for 12.6 days, with typically 64mm (2.52") of accumulated precipitation. Throughout the year, there are 147.3 rainfall days, and 721mm (28.39") of precipitation is accumulated.Snowfall
January, March through November are months without snowfall in Positano.Sea temperature
In September, the average sea temperature is 24.8°C (76.6°F).Note: If cold is not your friend, swimming at 24.8°C (76.6°F) might be daunting. But the right mix of sunshine, wind, and external temperature can make a difference. Although wetsuits are not essential, they can enhance the swimming experience.
Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 06:29 and sunset at 19:34. On the last day of September, sunrise is at 06:58 and sunset at 18:45 CEST.
Sunshine
In September, the average sunshine is 10.9h.UV index
In September, the average daily maximum UV index in Positano is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Heed this! UV intensity is much stronger when reflected off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Positano, Italy
- Average high temperature in September: 24.9°C
The warmest month (with the highest average high temperature) is August (28.1°C).
The months with the lowest average high temperature are January and February (12.8°C).
- Average low temperature in September: 21.4°C
The month with the highest average low temperature is August (24.3°C).
The coldest months (with the lowest average low temperature) are January and February (9.9°C).
Average pressure in September
Positano, 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
Positano, Italy
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Positano, Italy
- Average humidity in September: 65%
The months with the highest relative humidity are March, April, May and November (71%).
The month with the lowest relative humidity is September (65%).
Average rainfall in September
Positano, Italy
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is November (145mm).
The driest month (with the least rainfall) is August (10mm).
Average rainfall days in September
Positano, Italy
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is November (16.3 days).
The month with the least rainy days is August (4.7 days).
Average snowfall days in September
Positano, Italy
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Positano, 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
Positano, Italy
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 10h and 54min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Positano, Italy
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is February (11.1 days).
Average UV index in September
Positano, 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, November and December (UV index 4).
Average cloud cover in September
Positano, Italy
- Average cloud cover in September: 19
The month with the most cloud cover is January (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 9).
Average visibility in September
Positano, 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).
