The climate in Sperlonga during September can be summarized as warm, humid and a little damp.
September is in the fall / autumn in Sperlonga and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 16°C (60°F) is normal.
Daytime temperature | 25.8°C 78.4°F |
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Nightly temperature | 15.6°C 60.1°F |
Average temperature | 20.7°C 69.3°F |
Daily sunshine | 8.4 hrs |
Avg rainfall | 82 mm 3.2 ins |
Rainy days | 9 days |
Sea temperature | 24.5°C 76.1°F |
Humidity | 73% |
Windspeed | 6.8kph 4 mph |
On average September is the 6th wettest month of the year in Sperlonga with around 82mm 3.2 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.4 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sperlonga in September 2025.
Best places to visit in September
Hottest month: | August | 28.7°C 83.7°F |
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Driest month: | July | 22mm 0.9ins |
Sunniest month: | July | 11hrs |
Coldest month: | January | 11.7°C 53.1°F |
Wettest month: | November | 149mm 5.9ins |