Naples works in December for travelers who want museums, ruins and a volcano more than beach time. Afternoons reach 58°F (14°C), and the sea is still 62°F (17°C).
Rain falls on ten days of the month, and the days are short, with just over nine hours of daylight in mid-December. Plan the outdoor sights for the morning and keep the museums for the wet hours.
At a glance
- Afternoon high: 58°F (14°C)
- Night low: 43°F (6°C)
- Rainy days: 9.9, with 4.4 inches (112 mm) of rain
- Sunshine: 3.4 hours a day
- Sea: 62°F (17°C)
- Daylight on December 15: 9 hours 16 minutes
What is the weather like in Naples in December?
| Month | Average high | Average low | Rain | Rainy days | Sunshine per day | Sea | Daylight (15th) |
|---|---|---|---|---|---|---|---|
| November | 65°F (18°C) | 49°F (10°C) | 6.0 in (152 mm) | 10 | 4.2 h | 67°F (19°C) | 9 h 57 |
| December | 58°F (14°C) | 43°F (6°C) | 4.4 in (112 mm) | 10 | 3.4 h | 62°F (17°C) | 9 h 16 |
| January | 56°F (13°C) | 41°F (5°C) | 3.6 in (92 mm) | 9 | 3.7 h | 59°F (15°C) | 9 h 32 |
*Long-term monthly averages.*
December in Naples is cool and mostly gray. Afternoons reach 58°F (14°C), and nights fall to 43°F (6°C), so a jacket is needed from morning to night.
Rain falls on ten days of the month, and the sun shines just over three hours a day on average. The sea stays at 62°F (17°C). Bring a rain layer and keep a museum on standby for the wet days. With 9 hours 16 minutes of daylight in mid-December, start the outdoor sights early.
November is warmer, with a 65°F (18°C) afternoon high, a night low of 49°F (10°C) and a little more rain. January is the coolest of the three, with a 56°F (13°C) high and a 41°F (5°C) low, and it is the driest of the three. December sits between them.
What to do in Naples in December
Pompeii and the Great Pompeii sites
The Pompeii ticket covers the ancient city and its suburban villas, the Villa of the Mysteries and the Villa of Diomedes. It also includes Villa Regina in Boscoreale, with its Antiquarium and a shuttle bus. The Pompeii Plus ticket adds Oplontis, Villa Arianna, Villa San Marco, the Archaeological Museum of Stabiae and Boscoreale.
All the sites are linked by a shuttle service, Pompeii Artebus. The themed itineraries Civic Pompeii and Daily Pompeii last about 1.5 hours and cost €8 on top of the entrance ticket. Daylight is short in December, so start the city early and leave the outlying villas for another day.
Vesuvius, the Great Cono trail
Nature trail no. 5 to the Great Cono starts at the square at 3,281 feet (1,000 meters) above sea level in Ercolano. The round trip takes up to 2 hours on the shortest route and 3 hours on the longest. The trail admits at most 360 hikers per hour, and the high route on the crater summit is closed to visitors.
Naples nights drop to 43°F (6°C) in December, and the square sits high above the city. Dress in layers for the hike and allow the full three hours in the short daylight.
Herculaneum Park
The Herculaneum Park includes the Archaeological Area, the Theater, the Villa of the Papyri, the Antiquarium and the Boat Pavilion. It is a good second ruin site for a day when Pompeii feels like too much walking in the damp.
Check the site’s opening hours before you go, since winter hours can differ.
Castel Nuovo, the Maschio Angioino
Castel Nuovo is a castle, museum and picture gallery. It houses the Museo Civico and hosts exhibitions and cultural initiatives. The museum itinerary takes in the Sala dell’Armeria, the Cappella Palatina or di Santa Barbara, and the first and second floors of the southern curtain.
The castle has a trapezoidal plan with a tuff curtain wall and five cylindrical towers. The courtyard has Catalan elements, among them the low-arched portico and the external piperno staircase by Guglielmo Sagrera. It makes a good use of a rainy morning.
Procida by hydrofoil
SNAV hydrofoils connect Naples to Procida with daily departures all year round, December included. Procida is the smallest island of the Campania archipelago, and the same boats link it on to Ischia, at the Casamicciola port.
SNAV is based at the Stazione Marittima, Molo Angioino. Pick a day without rain for the crossing, and bring a windproof layer for the deck.
Is Naples busy in December?
The city describes its tourism as constantly growing. Book rooms ahead for any weekend you plan to spend in Naples.
Tourist tax is charged per person per night, up to a maximum of 14 consecutive days. It applies to non-residents over 14 years of age staying in accommodation in the city. The 2026 rates are €1 higher than the base values in force at the start of the year.
Can you swim in Naples in December?
The sea near Naples averages 62°F (17°C) in December. That is a monthly average, and it is cold for swimming. November’s sea is 67°F (19°C) and January’s falls to 59°F (15°C).
December works better for a boat than for a swim. The SNAV hydrofoil to Procida runs daily all year.
What to pack for Naples in December
December in Naples asks for layers and something waterproof. Pack for cool nights, ten rainy days and long walks on wet stone.
- A warm layer for nights of 43°F (6°C)
- A rain jacket or small umbrella for the ten rainy days
- Waterproof walking shoes for the ruins at Pompeii and Herculaneum
- A fleece and a windproof layer for the Vesuvius trail, which starts at 3,281 feet (1,000 m)
- A phone and headphones for the app audio guide at Gallerie d’Italia, on Via Toledo
What to know before visiting Naples in December
The State Department’s travel advisory for Italy is Level 2, Exercise increased caution, issued September 10, 2026. It advises increased caution in Italy due to terrorism, recommends enrolling in the Smart Traveler Enrollment Program (STEP) for alerts from the U.S. embassy or consulate, and highly recommends buying travel insurance before you travel.
The Sansevero Chapel, also known as S. Maria della Pietà, is at Via Francesco De Sanctis 19/21. The National Archaeological Museum is at Piazza Museo 18/19. These are good fallback stops on rainy days.
Is December a good time to visit Naples?
Yes, December suits travelers who want museums, ruins and a volcano hike in cool weather. It does not suit those who want the beach.
If you want swimming, pick another month. If you want museums and archaeology, December works: the Gallerie d’Italia, Castel Nuovo, the National Archaeological Museum and the Sansevero Chapel are all indoor stops, and Pompeii and Herculaneum are best on a dry morning.
Sources
- comune.napoli.it (https://www.comune.napoli.it/novita/presentato-programma-feste-patronali/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/maschioangioino), checked 2026-10-30
- snav.it (https://www.snav.it/en/destinations/ischia-2/procida-casamicciola-2), checked 2026-10-30
- parconazionaledelvesuvio.it (https://www.parconazionaledelvesuvio.it/en/visit-the-park/the-paths/the-great-cono-of-vesuvius/), checked 2026-10-30
- ambwashingtondc.esteri.it (https://ambwashingtondc.esteri.it/en/chi-siamo/gli-uffici/), checked 2026-10-25
- comune.napoli.it (https://www.comune.napoli.it/tipi_evento/raduno-di-comunita/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/novita/napoli-aggiornate-le-tariffe-dellimposta-di-soggiorno-per-il-2026/), checked 2026-10-30
- comune.napoli.it (https://www.comune.napoli.it/vivere-il-comune/eventi/secondigliano-tra-corti-e-cortili/), checked 2026-10-30