ナポリ 12月の天気
ナポリの12月:涼しい、雨が多い、蒸し暑い — 訪れるのに良い時期。
2026年9月更新 · ERA5再解析による気候平年値
ナポリでは12か月中10位 · 12月に訪れたい旅行先で1413か所中842位 · 快適スコア66/100(Cランク)
- 日中
- 15°C
- 夜
- 7°C
- 雨の日
- 11
- 日照
- 6.6 h
- 湿度
- 81%
- 日の長さ
- 9 h

12月のナポリについての旅行者の声
近くのソレントからのメモ(27 km)
ナポリには12月のメモがまだありません — これは季節を共にする近くのソレントについてのメモです。
Sorrento-forum threads on whether it's worth visiting in December land firmly on yes, with caveats: cold but not miserable, sunny stretches genuinely possible, though the region's downpours are called legendary when they do arrive, worth keeping an eye on the forecast before planning a Capri or coastal-village day trip. Posters describe daytime temperatures in the high 50s Fahrenheit with much cooler nights, and the town itself leans into the season - both Sorrento and Naples decked out for Christmas, a real draw in its own right. The trade-off for the good rates and thin crowds is that plenty of pavement cafes and restaurants close for the winter, staff largely gone since late October, so dining runs leaner than in summer. Regulars recommend checking forecasts a couple of days out and keeping a backup plan for any coastal excursion. The record: 15.3C days feeling like 13C, 11.8C nights, 144mm across 11.5 days, an 18C sea, 74 percent humidity and just 6.8 hours of sun.
ナポリのほかの月
Regulars describe rain here as brief and self-correcting rather than a lasting event - a few muggy, wet minutes before the sun breaks back through - and are specific that there isn't much rain overall between July and September despite the persistent humidity. Our row backs the warm, humid-but-manageable read, 27.5C reading as a hot 29C at 73 percent humidity, over 18.3C nights, with 127.7mm of rain across 9.4 days. Regulars call this genuinely excellent sightseeing weather, less humid than peak summer and still warm enough for shorts and t-shirts, with crowds noticeably more tolerable than July or August. The sea holds a warm 25C. The record: 10.3 hours of sun, a 13.1 kph wind and AQI 56.
October is high season here until the 31st, and regulars point out that high season in this city is still nothing like Rome or Venice. The weather is generous - warm enough to swim on the good days, with a 24C sea - and unreliable in a specific way: mostly dry, then a short torrential shower, and warm enough through it for shirtsleeves. Our 107.9mm across 10.4 days is that. The practical note is for the ruins: there is almost nowhere to shelter at the archaeological sites, so a hooded waterproof beats an umbrella in the wind. Days average 22.9C over 14.6C. The record: humidity 79 percent, 8.8 hours of sun and AQI 58.
Asked whether June and early July differ much here, regulars answer with the inside of June: the first week runs about 25 to 30C and the last about 28 to 32C, so the month warms through itself and its end is closer to July than to its own beginning. Our single figure of 28.3C is the average of that climb. The other half is humidity, 72 percent, which turns those days into a felt 31C - the opposite arrangement to inland Spain at the same temperature, and the reason the open sites of the bay are a morning job rather than an afternoon one. Rain has nearly stopped at 31.9mm across 4.5 days and the sea is up to 24.1C. The record: 18.6C nights, 13.3 hours of sun and AQI 71.
Naples-forum threads on April crowds point to two clusters worth planning around, not the whole month: Easter and spring break bring one wave, and Italy's own public holidays on April 25 and May 1 bring another. Easter Sunday itself closes most sights, shops and restaurants, while Pasquetta (Easter Monday) is a second holiday that sends locals outdoors to enjoy the day off and the improving weather - so it's busy outside rather than shut. Posters call the shoulder stretches between those clusters noticeably thinner, good for museums like Capodimonte without the crowds. The record: 19.4C days, 9.5C nights, 70mm of rain across ten days, 11 hours of sun and a 15.5C sea still too cool to swim - mild, a little damp, sunshine building through the month.
地図のナポリのカードから自分のメモを追加できます。
ナポリの気候平年値 — 12月
ERA5再解析による月平均値です。AQIはその月の平均US AQI(米国大気質指数)です。
12月のナポリの混雑
その場所自体の混み具合 — 学校休暇や大型連休、編集部がタグ付けした月、そして天気の良さによる人気の高さ。快適スコアには含まれません。
ピークの混雑Crib season, San Gregorio Armeno、イタリアのChristmas holidays、主な訪問国のうち6か国で学校休暇(推定)
ピークの混雑混雑ショルダーシーズン閑散
ナポリの天気が良い月
この旅行先自身の一年間の快適スコアでランキングしています — 混み具合とは別のものです(上の「混雑」を参照)。
天気が厳しいナポリの天気がピークを迎えるのは4月〜6月で、特に良いのは5月ごろです。
天気が最高天気はまずまず天気が厳しい
12月のナポリのイベント
毎年の季節のイベント、自然の見どころ、休業、祝日 — 厳選し出典を明記しています。
- 祭り
Crib season, San Gregorio Armeno
11月1日〜1月6日クリスマス・年末年始混雑The crib-makers' street sells figurines all year, but from November it becomes a single slow column of people that takes half an hour to walk. Go early or take the parallel alleys. 出典 ↗
近くで開催中のイベント
ナポリから300 km以内 — 日帰りやちょっとした移動で行けて、今月何かがある場所です。快適スコアには含まれません。
ナポリはどこにある?
12月のナポリ — よくある質問
- 12月はナポリを訪れるのに良い時期ですか?
- ナポリの12月:涼しい、雨が多い、蒸し暑い — 訪れるのに良い時期。SeasonMapの快適スコアでは、ナポリの12か月中10位です(66/100)。
- 12月のナポリはどんな天気ですか?
- 12月のナポリは、平均最高気温14.8°C、最低気温7.3°C、降水量は約134.4 mmで、雨の日はおよそ11.3日です。
- 12月のナポリの大気質はどうですか?
- 12月のナポリの米国大気質指数(US AQI)は、平均約55です。
300 km圏内:SorrentoのChristmas lights and markets(11月25日〜1月6日)、RomeのBefana market, Piazza Navona(12月8日〜1月6日)。