Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As August makes way for September, Porto Santo Stefano's average high-temperature eases from 27.3°C (81.1°F) to a still warm 24°C (75.2°F). In Porto Santo Stefano, the nighttime temperature in September descends gently to an average of 20.4°C (68.7°F).Humidity
In September, the average relative humidity in Porto Santo Stefano is 68%.Rainfall
In Porto Santo Stefano, in September, during 10.9 rainfall days, 52mm (2.05") of precipitation is typically accumulated. Throughout the year, in Porto Santo Stefano, there are 121.1 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
January, March through December are months without snowfall.Daylight
In Porto Santo Stefano, the average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 06:41 and sunset at 19:49. On the last day of the month, sunrise is at 07:12 and sunset at 18:58 CEST.
Sunshine
In September, the average sunshine in Porto Santo Stefano is 10.7h.UV index
The average daily maximum UV index in September in Porto Santo Stefano is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
Frequently asked questions
What is the usual temperature for Porto Santo Stefano in September?
What is the average humidity in September in Porto Santo Stefano?
How many days does it rain in September in Porto Santo Stefano?
When it does not snow in Porto Santo Stefano?
What is the average length of the day in September in Porto Santo Stefano?
When are sunrise and sunset in September in Porto Santo Stefano?
How long on average sun shines in September in Porto Santo Stefano?
How high is the UV index in September in Porto Santo Stefano?
Average temperature in September
Porto Santo Stefano, Italy
- Average high temperature in September: 24°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (11.6°C).
- Average low temperature in September: 20.4°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 (8.7°C).
Average pressure in September
Porto Santo Stefano, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.3mbar).
The month with the lowest atmospheric pressure is April (1013.9mbar).
Average wind speed in September
Porto Santo Stefano, Italy
- Average wind speed in September: 14.7km/h
The windiest month (with the highest average wind speed) is February (20.7km/h).
The calmest month (with the lowest average wind speed) is July (12.3km/h).
Average humidity in September
Porto Santo Stefano, Italy
- Average humidity in September: 68%
The months with the highest relative humidity are March, April, May and November (74%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Porto Santo Stefano, Italy
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is November (108mm).
The driest month (with the least rainfall) is August (16mm).
Average rainfall days in September
Porto Santo Stefano, Italy
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is November (15.6 days).
The month with the least rainy days is August (4.3 days).
Average snowfall days in September
Porto Santo Stefano, 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 January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Porto Santo Stefano, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 4min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in September
Porto Santo Stefano, Italy
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is August (23.6 days).
The month with the least sunshine days is November (12.5 days).
Average UV index in September
Porto Santo Stefano, Italy
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Porto Santo Stefano, Italy
- Average cloud cover in September: 17
The month with the most cloud cover is January (Cloud cover 37).
The months with the least cloud cover are July and August (Cloud cover 9).
Average visibility in September
Porto Santo Stefano, 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).
Porto Santo Stefano, Italy
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