May in Naples averages highs of 22 °C (71 °F) and lows of 13 °C (56 °F), with about 9 rainy days and 14 h 27 min of daylight. The sea is fresh, around 19 °C (67 °F): fine for a quick swim.
May weather in Naples at a glance
average high to low each dot ≈ 3 rainy days
Is May a good time to visit Naples?
Good time to go: comfortably warm and some rain. May is usually high season in Naples: book rooms early, as prices are typically at their highest.
Our rule: a month scores 2 points for comfortable average highs of 18–28 °C (1 point for 14–18 or 28–32 °C) and 2 points for 5 or fewer rainy days (1 point for 6–10). Average highs above 35 °C or below 8 °C make it a tough month whatever the rain. A rainy day here means 2 mm of rain or more. 4 points = great, 3 = good, 2 = mixed, 0–1 = tough.
Holidays and events in May 2026
- Fri 1 May: International Workers Day (Festa del Lavoro) public holiday
Banks and many shops close on public holidays, and museums may change their hours, so check before you go.
Things to do in Naples in May
May's weather suits a mix of outdoor sights and museums, so the open-air ones come first.
- Centro Storico and Spaccanapoli — pizza on Via dei Tribunali outdoors
- Pompeii and Herculaneum — by Circumvesuviana train outdoors
- Mount Vesuvius — short crater walk outdoors
- Lungomare and Castel dell'Ovo outdoors
- National Archaeological Museum — Pompeii's treasures indoors
- Underground Naples indoors
Where to stay: Centro Storico for pizza and churches; Chiaia for seafront and boutiques.
What to pack for Naples in May
- Light layers for the day and a jumper for evenings, which cool to 13 °C (56 °F).
- An umbrella or a light waterproof: about 9 days this month see real rain.
- Comfortable walking shoes.
What a day in Naples costs
| Budget traveller | Mid-range | |
|---|---|---|
| Typical total per person, per day | €45–100 | €120–260 |
Excluding flights. May is usually high season in Naples: book rooms early, as prices are typically at their highest.
May in nearby cities
| City | High / low | Rainy days | Verdict |
|---|---|---|---|
| Rome | 23° / 13° | 10 | Good time to go |
| Dubrovnik | 22° / 14° | 10 | Good time to go |
| Florence | 22° / 12° | 11 | Mixed weather |
Want the whole trip planned? Join the Journey waitlist: tell it where, when and your budget, and it plans every day hour by hour.
FAQ
Is May a good time to visit Naples?
By the numbers, May is a good time to go: comfortably warm and some rain, with average highs of 22 °C (71 °F) and about 9 rainy days. May is usually high season in Naples: book rooms early, as prices are typically at their highest. The best months for weather are June.
How warm is Naples in May?
Average highs are 22 °C (71 °F) and lows 13 °C (56 °F) (2015–2024 averages). The sea is fresh, around 19 °C (67 °F): fine for a quick swim.
Does it rain a lot in Naples in May?
Expect about 9 days with 2 mm of rain or more, about 80 mm in total. It is the 6th wettest month of the year in Naples.
Sources: climate averages from Open-Meteo historical weather (ERA5 reanalysis, 2015–2024); sea temperatures from the Open-Meteo marine API (2023–2024); public holidays from Nager.Date. Daylight is calculated for the 15th of the month. Averages are a guide, not a forecast. Costs are typical ranges per person per day, excluding flights.