January in Naples averages highs of 12 °C (54 °F) and lows of 5 °C (41 °F), with about 10 rainy days and 9 h 33 min of daylight. The sea is cold, around 16 °C (62 °F).
January weather in Naples at a glance
average high to low each dot ≈ 3 rainy days
Is January a good time to visit Naples?
Tough month: cold and some rain. January 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 January 2026
- Thu 1 Jan: New Year's Day (Capodanno) public holiday
- Tue 6 Jan: Epiphany (Epifania) 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 January
January'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 January
- A warm jacket and layers; evenings drop to around 5 °C (41 °F).
- An umbrella or a light waterproof: about 10 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. January is usually low season in Naples: rooms are typically easier to find and cheaper.
January in nearby cities
| City | High / low | Rainy days | Verdict |
|---|---|---|---|
| Rome | 12° / 4° | 8 | Tough month |
| Dubrovnik | 11° / 4° | 11 | Tough month |
| Florence | 11° / 2° | 9 | 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 January a good time to visit Naples?
By the numbers, January is a tough month: cold and some rain, with average highs of 12 °C (54 °F) and about 10 rainy days. January 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 January?
Average highs are 12 °C (54 °F) and lows 5 °C (41 °F) (2015–2024 averages). The sea is cold, around 16 °C (62 °F).
Does it rain a lot in Naples in January?
Expect about 10 days with 2 mm of rain or more, about 97 mm in total. It is the 3rd 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.