Monthly climate ·Naples weather in September
In September, Naples averages around 27° by day and 18° at night, with 10 rain days a month — about a 33% chance of rain on any given day.
By day
27°C
At night
18°C
Daily rain chance
33%
Rain days a month
10
Monthly precipitation
113 mm
Sunshine hours a day
10.7
Average of 2016–2025 (Open-Meteo archive). Typical climate — not a forecast.
Is September a good time to visit Naples?
September is warm and pleasant in Naples — around 27° by day, but with about 10 rain days a month. Keep some flexibility in your plans.
Every month in Naples
Frequently asked questions
- What is the weather in Naples in September?
- In September, temperatures in Naples average between 18° at night and 27° by day, with 10 rain days a month (average of 2016–2025).
- How much rain falls in Naples in September?
- Naples gets about 113 mm of rain in September on average, spread over roughly 10 rain days.
- Is September a good time to visit Naples?
- September is warm and pleasant in Naples — around 27° by day, but with about 10 rain days a month. Keep some flexibility in your plans.