シエーナ 11月の天気
シエーナの11月:涼しい、雨が多い、空気がきれい — 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
シエーナでは12か月中10位 · 11月に訪れたい旅行先で1413か所中960位 · 快適スコア65/100(Cランク)
- 日中
- 14°C
- 夜
- 6°C
- 雨の日
- 12
- 日照
- 6.3 h
- 湿度
- 85%
- 日の長さ
- 10 h

11月のシエーナについての旅行者の声
近くのピサからのメモ(86 km)
シエーナには11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ピサについてのメモです。
Forum posters name November as Pisa's rainiest month, with October and November together seeing the heaviest precipitation of the year. Temperatures ease through the month - low-to-mid teens Celsius early on if you're lucky, dropping to around 10C or below by the back half - and posters describe real year-to-year variation in how much of the month is actually wet: one traveler's 11-day November trip saw rain on 4 days, only 2 of those heavy. Posters recommend simple layering (t-shirt, fleece, thin waterproof jacket) as generally sufficient, noting that street umbrella-sellers appear within minutes of any downpour starting. The trade-off for the wetter weather: noticeably thinner crowds around the Leaning Tower compared to peak season.
シエーナのほかの月
Regulars are specific the Piazza del Campo turns wall-to-wall on the August 16th Palio race day itself, gates closing around 4pm ahead of a 5pm parade, though the day before is described as genuinely wonderful, Contradas marching the streets in full ceremonial dress without the crush. Our row backs that hot, genuinely dry read, 30.4C reading as a hot 31C, over 18.9C nights, with 45.2mm of rain across 7.1 days and humidity down to 61 percent. Regulars are consistent this counts as genuinely hot by day, accommodation with pool access or easy water nearby the standard recommendation for cooling off between sightseeing. This remains a real trade-off month, heat and Palio crowds against a once-a-year spectacle. The record: 12.3 hours of sun, a 12.7 kph wind and AQI 47.
July here has a fixed date in it: the Palio runs on the 2nd, and the board warns that the days either side are worse for crowds than the race day itself. Their description of the event is unromantic and useful - a medieval square, uneven and uncomfortable viewing space, packed full, and hot for everybody in it. Outside those days the city keeps a daily rhythm worth planning around: the coach day-trippers arrive about half past ten, the worst of it runs to around three, and by six the Campo is calm enough to sit out with a drink. Our row gives 30.3C reading as 32C at 60.4 percent humidity, over 18.7C nights, with almost no rain, 28.3mm across 5 days. The narrow lanes stay cool. The record: 13.3 hours of sun and AQI 45.
Italy-forum threads asking if March is a good month for travel (Siena specifically singled out as a favorite) land firmly on yes, especially for anyone who prefers a city without the crush of summer tourists. Posters describe days as genuinely pleasant, cool nights giving way to comfortable, often mild afternoons, though the standing advice is to stay flexible: duck into museums and churches when a wet spell rolls through, take advantage of the outdoor cafes on Piazza del Campo whenever the sun cooperates. March also happens to be peak season for white truffle hunting in the surrounding Tuscan countryside. Layering is essential regardless of the day's forecast, since even a warm afternoon can turn chilly fast once the sun starts dropping. The record: 13.8C days feeling like 11C, 3.8C nights, 72mm across 9.6 days, 0.4cm of late-season snowfall, 74 percent humidity and 9.2 hours of sun.
Siena regulars give May a split verdict and the arithmetic behind it is worth having. Mid-May to mid-September is the stretch to avoid if crowds are the priority, and May has been getting busier year on year. But the first days are the exception rather than the rule: Easter, the 25th of April and the 1st of May absorb the Italian holiday travel between them, so once past the 1st it settles down again until the summer proper, with children still in school. Their other note is that Siena thins out fast as you leave the centre for the contrade. The weather risk our row adds is water - 92.4mm across 13.2 precipitation days under a mild 20.8C is more than one wet day in three. The record: 10.6C nights, humidity 74 percent, 11.7 hours of sun and AQI 44.
地図のシエーナのカードから自分のメモを追加できます。
シエーナの気候平年値 — 11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。
11月のシエーナの混雑
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。
閑散主な訪問国のうち2か国で学校休暇、天気が一年で最も悪い月のひとつ(推定)
ピークの混雑混雑ショルダーシーズン閑散
シエーナの天気が良い月
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)。
天気が厳しいシエーナの天気が最も良いのは5月、6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。
天気が最高天気はまずまず天気が厳しい
11月のシエーナのイベント
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。
- 自然
White truffle and new oil
10月20日〜12月15日 · 例年旬の味覚White truffle around San Giovanni d'Asso from late October, then the olive pressing in November and oil so green it stains the bread. The best eating months in the province.
近くで開催中のイベント
シエーナから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。
シエーナはどこにある?
11月のシエーナ — よくある質問
- 11月はシエーナを訪れるのに良い時期ですか?
- シエーナの11月:涼しい、雨が多い、空気がきれい — 訪れるのに良い時期。SeasonMapの快適スコアでは、シエーナの12か月中10位です(65/100)。
- 11月のシエーナはどんな天気ですか?
- 11月のシエーナは、平均最高気温13.8°C、最低気温6.1°C、降水量は約122.6 mmで、雨の日はおよそ12.3日です。
- 11月のシエーナの大気質はどうですか?
- 11月のシエーナの米国大気質指数(US AQI)は、平均約35です。
300 km圏内:FlorenceのOlive harvest and new oil(10月25日〜12月10日ごろ)、San MarinoのChristmas of Wonders(11月22日〜1月6日ごろ)。