The climate in Naples during September can be summarized as warm, humid and reasonably dry.
September is in the fall / autumn in Naples and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (79°F), whilst at night 16°C (61°F) is normal.
|Daytime temperature||26°C 78.8°F|
|Nightly temperature||15.9°C 60.6°F|
|Average temperature||20.9°C 69.7°F|
|Daily sunshine||8.4 hrs|
|Avg rainfall||68 mm 2.7 ins|
|Rainy days||9 days|
|Sea temperature||24.9°C 76.9°F|
|Windspeed||7.1kph 4 mph|
On average September is the 6th driest month of the year in Naples with around 68mm 2.7 inches of rain making it a reasonably dry 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 September 2020.
|Hottest month:||August||28.8°C 83.8°F|
|Driest month:||July||22mm 0.9ins|
|Coldest month:||January||12°C 53.6°F|
|Wettest month:||November||137mm 5.4ins|