シラクサ 4月の天気
シラクサの4月:快適、雨が少ない、空気がきれい — 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
シラクサでは12か月中2位 · 4月に訪れたい旅行先で1413か所中113位 · 快適スコア92/100(Sランク)
- 日中
- 19°C
- 夜
- 13°C
- 雨の日
- 4
- 日照
- 11.1 h
- 湿度
- 75%
- 日の長さ
- 13 h

4月のシラクサについての旅行者の声
The Syracuse forum's April thread makes a point most Sicily advice misses: Ortigia has its own climate, with nights running five or six degrees above the rest of the island and more humidity with it. Forecasts of 65 to 70F often come out warmer in practice, sunny afternoons feel properly summery and evenings do not, so layers and a light waterproof are the standard answer. Early April is the cooler, wetter half of the month; late April is the one people remember. Easter is the other variable - it starts Sicily's season, mainland Italians travel for it, and Ortigia is on the list of places that fill. The record: 18.9C days, 13C nights, 4.2 precipitation days and just 15.9mm, 11.1 hours of sun, a 16C sea.
シラクサのほかの月
Regulars are consistent that early-to-mid October stays genuinely warm enough for the beach, with the odd quick shower or short thunderstorm passing through before the sun returns rather than settling in for the day. Our row backs that warm, still-showery read, 23.6C over 18.4C nights, with 81.6mm of rain across 8.2 days and humidity at 77 percent. Regulars are specific that some recent Octobers have run gloriously warm and sunny straight through, though the month's weather stays genuinely changeable year to year. A light rain jacket and a warmer layer for evenings remain the standard packing advice regardless. The sea sits at a warm 24.6C, still comfortably swimmable. The record: 9.3 hours of sun, a 19.5 kph wind and AQI 47.
Regulars call this a very good month, the start of the season proper without July's heat or crowds yet arrived - beach season with full services begins now, and the platforms at spots like Forte Vigliena are normally up in time. Our row backs the warmth, 27.9C reading as 31C over 21.1C nights, with rain essentially gone, 11.5mm across just over a day. Sea temperature is the one point of disagreement: our column reads 23C, and regulars sensitive to water temperature still call June a touch cold for swimming, though visitors from colder climates find it acceptable and do swim regardless. Ortigia's free swimming spots - the rocks at Forte Vigliena, the sand below Hotel Royal Maniace, the pebbles at Cala Rossa - are all named specifically rather than just 'the beach'. The record: humidity 66 percent, 13.3 hours of sun, a 15.8 kph wind and AQI 59.
Syracuse-forum threads on winter stays in Siracusa describe January as mild by Sicilian coastal standards, rarely dropping below the high 40s Fahrenheit, but posters are candid that humidity makes the cold feel sharper than the number alone suggests. Rain is genuinely likely this time of year, since winter is the wet season on the island, and posters describe conditions swinging from lovely and sunny right through December into early January before turning colder and damper as January and February wear on. Ortigia's old town is called fully alive despite the low season, restaurants and pizzerias open and busy with local residents rather than tourists, some coming over from nearby Catania just for a day out. Regulars call it a genuinely pleasant, quiet month for anyone not chasing beach weather. The record: 14.9C days feeling like 12C, 9.7C nights, 49mm across 6.1 days, a 16.2C sea, 76 percent humidity and 8.1 hours of sun.
March in Syracuse is low season and, regulars say, a very good time to be in Sicily anyway: the flowers start, the tourist onslaught has not, and the island is at the end of its rainy season. Their Sicilian range of 43 to 64F depending where you stand is our row's 16.7C over 11C, with 44.7mm across 6.3 precipitation days and a 23 kph wind. What they will not promise is consistency - March and early April are transitional, changeable and hard to predict, so the advice is layers. Ortigia itself is small enough that nothing is far from anything, which matters more in a month that can turn wet without warning. The record: feels-like 15C by day and 8C at night, humidity 76 percent and 10.1 hours of sun.
地図のシラクサのカードから自分のメモを追加できます。
シラクサの気候平年値 — 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月のシラクサの混雑
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Holy Week、Spring bank-holiday bridges、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
シラクサの天気が良い月
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)。
天気はまずまずシラクサの天気は一年を通じて大きく変わりません — どの月も快適さはほぼ一定です。
4月のシラクサのイベント
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
Holy Week
3月29日〜4月6日混雑Processions through Ortigia's lanes and the first week the sea-front tables come out. It is also when Sicilians travel, so the island's roads and ferries are at their fullest. 出典 ↗
- 祝日
Spring bank-holiday bridges
4月25日〜6月2日国民の祝日混雑早めの予約をLiberation Day (25 April), Labour Day (1 May) and Republic Day (2 June) are public holidays, and when one falls near a weekend Italians bridge it into a long break, the ponte. Those weekends bring domestic crowds, fuller trains and higher room rates, and some shops close on the day. 出典 ↗
近くで開催中のイベント
シラクサから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。
シラクサはどこにある?
4月のシラクサ — よくある質問
- 4月はシラクサを訪れるのに良い時期ですか?
- シラクサの4月:快適、雨が少ない、空気がきれい — 一年で最も訪れやすい月のひとつ。SeasonMapの快適スコアでは、シラクサの12か月中2位です(92/100)。
- 4月のシラクサはどんな天気ですか?
- 4月のシラクサは、平均最高気温18.9°C、最低気温13°C、降水量は約15.9 mmで、雨の日はおよそ4.2日です。
- 4月のシラクサの大気質はどうですか?
- 4月のシラクサの米国大気質指数(US AQI)は、平均約46です。
300 km圏内:CataniaのBlood orange harvest(12月15日〜4月15日ごろ)、VallettaのMalta International Fireworks Festival(4月14日〜5月1日ごろ)。