ミラノ 4月の天気
ミラノの4月:快適、雨が多い — 訪れるのに絶好の時期。
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3位 · 4月に訪れたい旅行先で1413か所中378位 · 快適スコア85/100(Aランク)
- 日中
- 19°C
- 夜
- 9°C
- 雨の日
- 10
- 日照
- 10.5 h
- 湿度
- 67%
- 日の長さ
- 14 h

4月のミラノについての旅行者の声
Milan forum regulars call April a genuine sweet spot but not without its own wrinkles: it may rain but temperature is pleasant, with the month acting as “the transition...between spring and summer” — go prepared for anything, especially earlier in the month. Days run comfortably mild, “mid-60s to mid-70s°F,” but afternoons that turn warm and sunny cool down fast once evening hits, which is why layering shows up in every thread. One date-specific warning worth knowing before booking: Salone del Mobile (Design Week), typically the second or third week of April, sends hotel prices sharply up and availability down. Our record: 17.6°C days, 6.9°C nights, 9.4 rain days and 10.4 hours of sun — mild with real rain risk, matching the “pleasant but pack for anything” read.
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.
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.
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.
ミラノの気候平年値 — 4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。
4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。
ピークの混雑Easter and Pasquetta、Milano Marathon、イタリアのEaster holidays(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。
4月にはMilano Marathonがあります。
天気が最高天気はまずまず天気が厳しい
4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。
- 祝日
Easter and Pasquetta
4月4日〜6日イースター・聖週間混雑休業Easter Sunday and Easter Monday (Pasquetta) are public holidays, and Italians use the long weekend for short breaks and day trips: trains and hotels fill, old towns and sights are busier than the weeks around, and many shops and some restaurants close on Easter Sunday. 出典 ↗
- 祭り
Milano Marathon
3月28日〜4月14日 · 例年スポーツイベント休業混雑A flat course through the centre and the western districts on a Sunday in early April, with a relay that puts thousands of teams on the road. The streets inside the ring close for the morning. 出典 ↗
- 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
Salone del Mobile and Fuorisalone
4月21日〜26日芸術祭混雑早めの予約をThe furniture fair itself is out at Rho, but the Fuorisalone takes over Brera, Tortona and Isola for the week. It is the single hardest week of the year to find a bed at a sane price. 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?
4月のミラノ — よくある質問
- 4月はミラノを訪れるのに良い時期ですか?
- ミラノの4月:快適、雨が多い — 訪れるのに絶好の時期。SeasonMapの快適スコアでは、ミラノの12か月中3位です(85/100)。
- 4月のミラノはどんな天気ですか?
- 4月のミラノは、平均最高気温19.2°C、最低気温8.6°C、降水量は約86.8 mmで、雨の日はおよそ9.6日です。
- 4月のミラノの大気質はどうですか?
- 4月のミラノの米国大気質指数(US AQI)は、平均約59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Camellias and magnolias(3月10日〜4月15日ごろ)。