What to pack for Naples in September
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
Humidity averages 69%; max daily wind around 16 km/h.
How September compares
Best months in Naples: April & June & September–October. See the full best time to visit Naples guide.
Naples in September: the details
In September, Naples sees average daytime highs of 27°C (81°F) and overnight lows of 19°C (66°F). Rainfall totals roughly 115 mm across 9.8 rainy days, and the sun shines about 10.8 hours per day with 12.3 hours of daylight mid-month. Relative humidity averages 69%.
In context: September is the 4th-warmest month and the third-wettest in Naples. The sunniest month is July (13.8 h/day).
| Metric | September average |
|---|---|
| Daytime high | 27°C / 81°F |
| Overnight low | 19°C / 66°F |
| Rainfall | 115 mm over 9.8 rainy days |
| Sunshine | 10.8 h/day (12.3 h daylight) |
| Humidity | 69% |
| Travel score | 9.1 / 10 |
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Naples, Italy (40.85, 14.27) — see our methodology. Actual conditions vary year to year.
Not set on Naples? Browse the best places to visit in September ranked by travel score.
Frequently asked questions
How hot is Naples in September?
Daytime highs in Naples in September average 27°C (81°F); nights drop to about 19°C.
Does it rain in Naples in September?
Expect around 9.8 rainy days and 115 mm of rainfall in September.
Is September a good time to visit Naples?
September is one of the best months to visit Naples. Overall travel score: 9.1/10. The best months are April & June & September–October.
Also good in September, near Naples
Where should you go next month?
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