ミラノ 5月の天気
ミラノの5月:快適、雨が多い — 一年で最も訪れやすい月のひとつ。
2026年9月更新 · ERA5再解析による気候平年値
ミラノでは12か月中2位 · 5月に訪れたい旅行先で1413か所中397位 · 快適スコア86/100(Aランク)
- 日中
- 23°C
- 夜
- 13°C
- 雨の日
- 15
- 日照
- 10.9 h
- 湿度
- 71%
- 日の長さ
- 15 h

5月のミラノについての旅行者の声
Regulars put May here in the mid-twenties, warn that the evenings still want a jumper, and say rain is always a possibility. Our row makes that last point firmer than they do: 145.3mm across 15.3 days, so rain falls on half the days of the month, usually as afternoon and evening storms off the plain rather than as grey drizzle. Days reach 22.8C and read as 23C at 71 percent humidity, over 13C nights. The packing answer they give is the right one - short sleeves, long trousers, something warm for after dark, and an umbrella that lives in the bag. Daylight is 14.9 hours with 10.9 of sun. The record: a dew point of 11.3C, an 11.6 kph wind and AQI 62.
ミラノのほかの月
Regulars are specific that this month calls for real layers - a cotton sweater and jacket plus an umbrella - since a t-shirt only makes sense on a rare, brightly sunny day rather than as a general bet. Our row backs the cool, damp read, 14.9C over 4.7C nights feeling 2C, with 78.3mm of rain across 8.4 days and only a bare trace of possible snow, 0.9cm, consistent with regulars calling real snow this time of year essentially a non-issue here. Regulars are candid that Milan's weather generally resists prediction, though April is named as typically warmer with its own reputation for rain. The record: humidity 70 percent, 8.8 hours of sun, an 11.4 kph wind and AQI 74.
The June question on this board is air conditioning, and the answer is that it is far from standard in Italy - check the listing and then check the reviews, because a room without it is a different holiday. Our row gives 28.8C reading as 30C over 18C nights, which is hot rather than extreme, at 67 percent humidity. The rain is the part visitors underestimate: 113.4mm across 10.8 days, more than May's, arriving as storms that the boards say tend to come at night and early morning rather than through the sightseeing day. Sunshine is generous at 12.8 hours inside 15.6 of daylight. The record: a dew point of 15.3C, an 11.2 kph wind and AQI 71.
September in Milan is still hot by day - mid-20s, with the worst of the summer gone - and cool enough in the evening for a cardigan, with a folding umbrella as the standing recommendation. The date that dominates the month is Fashion Week in late September, when hotel prices run three or four times normal and, at the top end, past a thousand a night near the Duomo. The crowding is more selective than you would expect: regulars describe the Duomo square and the Galleria as busy when the sun is out and the rest of the city much as usual. Our row's 122.7mm over 10.8 days is why the umbrella. The record: 25.3C days that feel like 27C, 15.1C nights and 10 hours of sun.
Milan forum threads describe January as cold and damp, with daytime highs typically in the mid-40s Fahrenheit, frequent fog, and real snow a genuine possibility though not a given. Posters singled out the late-January stretch, around the 30th-31st, as typically the coldest days of the whole year in the city. The universal packing advice was a proper hat, coat, gloves and an umbrella for the damp - but posters also noted that heating indoors runs very warm, so layering matters both ways: light clothing works fine inside shops and hotels, with the heavy coat reserved for stepping back out.
ミラノの気候平年値 — 5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。
5月のミラノの混雑
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。
混雑主な訪問国のうち4か国で学校休暇、天気が一年で最も良い月のひとつ(推定)
ピークの混雑混雑ショルダーシーズン閑散
ミラノの天気が良い月
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)。
天気が最高ミラノの天気が最も良いのは4月、5月、9月です — ひと続きのシーズンではなく、別々の時期です。
5月にはPiano City Milanoがあります。
天気が最高天気はまずまず天気が厳しい
5月のミラノのイベント
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。
- オープン
Lake ferries on full timetable
4月1日〜10月15日 · 例年夏季営業スタートComo, Maggiore and Garda run the full public boat timetable from around Easter to mid-October, which is what makes the lakes a day out from Milan rather than a drive. Winter service is a skeleton. 出典 ↗
- 祭り
Piano City Milano
5月15日〜17日 · 例年音楽祭A weekend in May when a few hundred free piano concerts appear in courtyards, stairwells and private gardens that are shut the rest of the year. Most need nothing but turning up. 出典 ↗
近くで開催中のイベント
ミラノから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。
ミラノはどこにある?
5月のミラノ — よくある質問
- 5月はミラノを訪れるのに良い時期ですか?
- ミラノの5月:快適、雨が多い — 一年で最も訪れやすい月のひとつ。SeasonMapの快適スコアでは、ミラノの12か月中2位です(86/100)。
- 5月のミラノはどんな天気ですか?
- 5月のミラノは、平均最高気温22.8°C、最低気温13°C、降水量は約145.3 mmで、雨の日はおよそ15.3日です。
- 5月のミラノの大気質はどうですか?
- 5月のミラノの米国大気質指数(US AQI)は、平均約62です。
300 km圏内:ComoのVilla gardens and full boat timetable(3月20日〜11月5日ごろ)、LuganoのSan Salvatore funicular season(3月14日〜11月8日ごろ)。