Porto Santo Stefano Weather: September
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Average Day Temperature: | 77.9°F |
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Average Night Temperature: | 73.0°F |
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Sea Water Temperature: | 79.1°F |
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Number of Sunny Days: | 19 days |
| Sunshine Hours: | 11.8 - 13.2 hours | |
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Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.9 in | |
| detailed information | ||
forecast
| Porto Santo Stefano |
Temperature
| Porto Santo Stefano |
Air Temperature in September, °F
The highest day temperature in September 2025 was 80°F. The lowest night temperature was 63°F. The average values for day and night temperatures during September were 75.7°F и 72.4°F respectivly.
Porto Santo Stefano Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Porto Santo Stefano was 79.3°F. The maximum and minimum values were 76.8°F and 81.6°F respectively.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Porto Santo Stefano is 0.9 in.
The average wind speed in September is 8.7 mph. It makes September one of the most windless months of the year for Porto Santo Stefano.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Porto Santo Stefano in September is 9.2 hours.
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+54 |
| Cagliari | ![]() |
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| Catania | ![]() |
+52 |
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+48 |
| Genoa | ![]() |
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+56 |
| Palermo | ![]() |
+52 |
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+50 |
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+50 |
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+50 |
| Scalea | ![]() |
+40 |
| Sicily | ![]() |
+44 |
| Tropea | ![]() |
+54 |
| Venice | ![]() |
+48 |
| 0900 | ![]() |
54°F | SW 6 mph |
| 1200 | ![]() |
54°F | S 4 mph |
| 1500 | ![]() |
56°F | S 9 mph |
| 1800 | ![]() |
54°F | S 11 mph |
| 2100 | ![]() |
52°F | S 11 mph |
| 0000 | ![]() |
52°F | S 12 mph |
| 0300 | ![]() |
54°F | S 13 mph |
| 0600 | ![]() |
54°F | S 11 mph |



































