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 in September
- Average snowfall days in September
- Average sea temperature 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
The beginning of September brings a slight decrease in the average high-temperature, transitioning from 28°C (82.4°F) in August to a still moderately hot 23.7°C (74.7°F). The average low-temperature, in September, is an enjoyable 17.9°C (64.2°F).Humidity
In Porto San Giorgio, the average relative humidity in September is 68%.Rainfall
In September, the rain falls for 10.7 days. Throughout September, 39mm (1.54") of precipitation is accumulated. In Porto San Giorgio, during the entire year, the rain falls for 139.4 days and collects up to 464mm (18.27") of precipitation.Snowfall
April through November are months without snowfall in Porto San Giorgio, Italy.Sea temperature
In Porto San Giorgio, Italy, the average seawater temperature in September is 24°C (75.2°F).Note: When thinking about a swim in 24°C (75.2°F) waters, consider your cold tolerance, the day's sunshine, wind, and air temperature. It is a fun fact that Olympic swimmers dive into waters of 25°C (77°F) to 28°C (82.4°F).
Daylight
In September, the average length of the day in Porto San Giorgio is 12h and 30min.On the first day of September in Porto San Giorgio, sunrise is at 06:29 and sunset at 19:39. On the last day of the month, sunrise is at 07:01 and sunset at 18:47 CEST.
Sunshine
The average sunshine in September in Porto San Giorgio, Italy, is 10.9h.UV index
The average daily maximum UV index in September in Porto San Giorgio, Italy, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Porto San Giorgio in September?
What is the average humidity in September in Porto San Giorgio?
How many days does it rain in September in Porto San Giorgio?
When it does not snow in Porto San Giorgio?
What is the water temperature in September in Porto San Giorgio?
What is the average length of the day in September in Porto San Giorgio?
When is the sunrise / sunset in September in Porto San Giorgio?
How long on average sun shines in September in Porto San Giorgio?
How high is the UV index in September in Porto San Giorgio?
Average temperature in September
Porto San Giorgio, Italy
- Average high temperature in September: 23.7°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (9.8°C).
- Average low temperature in September: 17.9°C
The month with the highest average low temperature is August (21.4°C).
The coldest month (with the lowest average low temperature) is January (6.1°C).
Average pressure in September
Porto San Giorgio, Italy
- Average pressure in September: 1015.5mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is July (1013.4mbar).
Average wind speed in September
Porto San Giorgio, Italy
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is June (9.7km/h).
Average humidity in September
Porto San Giorgio, Italy
- Average humidity in September: 68%
The month with the highest relative humidity is November (76%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Porto San Giorgio, Italy
- Average rainfall in September: 39mm
The wettest month (with the highest rainfall) is May (54mm).
The driest month (with the least rainfall) is August (26mm).
Average rainfall days in September
Porto San Giorgio, Italy
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is August (7.8 days).
Average snowfall in September
Porto San Giorgio, Italy
- Average snowfall in September: 0mm
The month with the highest snowfall is February (44mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Porto San Giorgio, Italy
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in September
Porto San Giorgio, Italy
- Average sea temperature in September: 24°C
The best month for swimming (with the highest average sea temperature) is August (25.4°C).
The coldest month (with the lowest average sea temperature) is February (12.3°C).
Average daylight in September /
Average sunshine in September
Porto San Giorgio, Italy
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 10h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 36min).
Average sunshine days in September
Porto San Giorgio, Italy
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is August (20.6 days).
The month with the least sunshine days is May (12.8 days).
Average UV index in September
Porto San Giorgio, Italy
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Porto San Giorgio, 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 11).
Average visibility in September
Porto San Giorgio, 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 San Giorgio, Italy
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