Naples records about 1006mm of rain across roughly 93 wet days a year, which is a 25% chance on an average day. November is the wettest month at 162mm (16% of the annual total) and July the driest at 24mm. Local rain type: brief showers. Naples summers are dry and hot, but autumn and winter bring substantial Mediterranean storms. November is extremely wet — plan indoor activities.
Chance of rain on an average day: 25%
Rainfall climatology for Naples. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 1006mm |
| Rain days per year | 93 |
| Odds on an average day | 25% |
| Wettest month | November — 162mm over 15 days |
| Driest month | July — 24mm over 2 days |
| Rain type | brief showers |
| Best dry window | June through August offers nearly rain-free conditions for exploring Vesuvius and the coast. |
| Worst rain window | November through January delivers heavy Mediterranean storms with dramatic lightning over the bay. |
November delivers 575% more rain than July (162mm vs 24mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 16% of the annual total, so rain in Naples is spread through the year — there is no season you can rely on being dry.
Naples rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 15 days in November against 2 in July — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 104mm | 10 | 33% | 13°C |
| February | 98mm | 9 | 30% | 13°C |
| March | 79mm | 7 | 23% | 15°C |
| April | 76mm | 7 | 23% | 19°C |
| May | 52mm | 5 | 17% | 24°C |
| June | 34mm | 3 | 10% | 28°C |
| July | 24mm | 2 | 7% | 30°C |
| August | 42mm | 4 | 13% | 30°C |
| September | 76mm | 7 | 23% | 28°C |
| October | 130mm | 12 | 40% | 24°C |
| November | 162mm | 15 | 50% | 19°C |
| December | 121mm | 11 | 37% | 15°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Naples we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Naples records rain on roughly 93 days a year — about a 25% chance on any given day — totalling around 1006mm.
November, with about 162mm over 15 rain days. That is 16% of the entire year's rainfall in a single month.
July is the driest month at 24mm across roughly 2 days. June through August offers nearly rain-free conditions for exploring Vesuvius and the coast.
Naples summers are dry and hot, but autumn and winter bring substantial Mediterranean storms. November is extremely wet — plan indoor activities.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.