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Naples weather by month
Historical averages 2016–2025 · not a forecast
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When is the best time to visit Naples?
For a warm holiday, the best week has been 15–21 June (Weather Index 96). Favourable start dates for a 7-day trip run from 26 May to 22 June. July and August are warmest (30°C), July is driest and July has the most sun.
- Warmest
- July and August 30°C
- Coolest
- January 13°C
- Driest
- July 8% rain-day chance
- Wettest
- November 53% rain-day chance
- Sunniest
- July 14 hours a day
A rain day has 1 mm or more, snow included, so a short shower counts. Monthly averages below give the amounts.
Monthly averages in Naples
Naples historical monthly estimates, 2016–2025. Temperatures and sunshine are daily averages.
| Month | High (°C) | Low (°C) | Rain-day chance (%) | Expected rain days | Precipitation (mm/month) | Sunshine (hours/day) |
|---|---|---|---|---|---|---|
| January | 12.6 | 7.2 | 43.5 | 13.5 | 117.8 | 7.1 |
| February | 14.2 | 8.0 | 35.0 | 9.8 | 105.2 | 8.4 |
| March | 15.5 | 8.9 | 40.6 | 12.6 | 103.7 | 9.7 |
| April | 18.4 | 11.2 | 34.7 | 10.4 | 69.9 | 11.4 |
| May | 21.8 | 15.0 | 36.8 | 11.4 | 84.2 | 12.2 |
| June | 27.2 | 19.7 | 15.0 | 4.5 | 31.9 | 13.4 |
| July | 30.0 | 22.5 | 7.7 | 2.4 | 14.8 | 13.8 |
| August | 30.4 | 22.7 | 17.1 | 5.3 | 24.3 | 12.8 |
| September | 26.4 | 19.3 | 31.3 | 9.4 | 127.9 | 10.7 |
| October | 22.3 | 15.7 | 32.9 | 10.2 | 107.8 | 9.1 |
| November | 17.6 | 12.1 | 53.0 | 15.9 | 237.1 | 7.1 |
| December | 14.4 | 8.8 | 36.8 | 11.4 | 134.4 | 6.8 |
Each month averages its own days. Precipitation includes snow. About the data
Sources
Open-Meteo · 1 Jan 2016 – 31 Dec 2025
- Open-Meteo Historical Weather API
- Local days, 2016–2025, every year weighted equally. Each weekly chart averages its own seven days, without smoothing.
- Shading shows the 10th–90th percentile of past days, not forecast confidence.
- A rain day has at least 1 mm, snow included. The last weekly period has eight days.
- Wind is the average daytime (10:00–18:00) maximum, not gusts. Daylight is calculated from latitude. Missing readings stay blank.
- Mugginess (dew point) comes from the original daily summaries, on UTC days.
- The live two-week forecast comes from the Open-Meteo Weather Forecast API. The Weather Index does not use it.