September · Italy
Best time to visit Naples in September Weather, crowds & prices
Weather in Naples in September
Average temperature 22°C, 140 mm of rain, about 28 days with 6+ hours of sunshine and 71% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
7.3/10
Ranked #8 of 12 months
- Avg temp
- 22°C
- Rainfall
- 140 mm
- Humidity
- 71%
- Days with 6h+ sun
- 28
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Naples scores 7.3/10 for sightseeing and cultural travel - ranked #8 of 12. Expect around 22°C, 140 mm of rain, and roughly 28 days with 6+ hours of sunshine this month.
Naples wraps around a wide bay beneath Vesuvius, with Spaccanapoli cutting through the historic center and ferries leaving the port for Capri and Ischia.
September in Naples — reliably good (8th best month)
At 22°C (72°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
140 mm of rain makes this a wet month here, though with about 28 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.3/10 on the same scale — 8th of 12 months, versus 8.9/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Budget for low-season pricing, and crowds are light for this destination.
If your dates are flexible, June is materially better in Naples — 1.6 points higher on the same scale.
Frequently asked
- What is the weather like in Naples in September?
- In September, Naples averages 22°C, 140 mm of rain, and about 28 days with 6+ hours of sunshine. Its climate-comfort score is 7.3/10.
- Is September a good time to visit Naples?
- September earns a 7.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Naples in September?
- Expect about 140 mm of rain in September. Average humidity is 71% and there are about 28 days with 6+ hours of sunshine.
Curated in Naples
Tickets & experiences
Things to do in Naples
Naples, Italy. Live activities and tours from GetYourGuide, matched to this destination.