December in Naples averages highs of 14 °C (58 °F) and lows of 7 °C (44 °F), with about 8 rainy days and 9 h 15 min of daylight. The sea is fresh, around 18 °C (64 °F): fine for a quick swim.
December weather in Naples at a glance
average high to low each dot ≈ 3 rainy days
Is December a good time to visit Naples?
Mixed weather: cool and some rain. December is usually low season in Naples: rooms are typically easier to find and cheaper.
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 December 2026
- Tue 8 Dec: Immaculate Conception (Immacolata Concezione) public holiday
- Fri 25 Dec: Christmas Day (Natale) public holiday
- Sat 26 Dec: St. Stephen's Day (Santo Stefano) 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 December
December'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 December
- Layers and a light jacket: days around 14 °C (58 °F), nights near 7 °C (44 °F).
- 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. December is usually low season in Naples: rooms are typically easier to find and cheaper.
December in nearby cities
| City | High / low | Rainy days | Verdict |
|---|---|---|---|
| Rome | 14° / 5° | 8 | Tough month |
| Dubrovnik | 13° / 6° | 11 | Tough month |
| Florence | 12° / 3° | 10 | Tough month |
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 December a good time to visit Naples?
By the numbers, December is a mixed month: cool and some rain, with average highs of 14 °C (58 °F) and about 8 rainy days. December is usually low season in Naples: rooms are typically easier to find and cheaper. The best months for weather are June.
How warm is Naples in December?
Average highs are 14 °C (58 °F) and lows 7 °C (44 °F) (2015–2024 averages). The sea is fresh, around 18 °C (64 °F): fine for a quick swim.
Does it rain a lot in Naples in December?
Expect about 8 days with 2 mm of rain or more, about 101 mm in total. It is the 6th driest 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.