イビサ島の月別の天気
イビサ島を訪れるベストシーズンは6月〜8月です — 7月は95/100、最高30°C、雨の日1日。 ベストな季節は夏(6月〜8月)で、平均94/100です。
最も不向きな月は1月で、67/100です — 涼しい、ときどき雨、空気がきれい。 1月を見る →
2026年9月更新 · ERA5再解析による気候平年値
周辺も含めて旅を計画するなら スペイン旅行のベストシーズン →
イビサ島Ibiza, Spain🇪🇸 スペイン · カタルーニャ・バレンシア・バレアレス諸島 · 島95
ベストな季節:6月〜8月(平均94/100) · 最も不向きなのは1月(67/100)
- 日中
- 30°C
- 夜
- 22°C
- 雨の日
- 1
- 日照
- 13.4 h
- 湿度
- 62%
- 日の長さ
- 15 h

イビサ島の月ごとのようす
イビサ島に最も合う旅のタイプでの100点満点の快適スコア、気候平年値による平均最高気温・雨の日数・1日の日照時間、そして混雑具合の目安です。
イビサ島の年間イベント
祭り、自然の見どころ、祝日、そして注意したい季節 — 厳選し出典を明記しています。詳しくは各月のページで。
7月のイビサ島の混雑
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August peak、スペインのSummer holidays、主な訪問国のうち6か国で学校休暇(推定)
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ピークの混雑混雑ショルダーシーズン閑散
イビサ島の旅行者の声
実際に訪れた人たちの声です — 通年のメモを先に、そのあと月ごとに並べています。
Forum posters describe February as capable of some genuinely decent daytime weather, though not warm enough for a picnic or a swim - a pleasant beach walk on a sunny day is realistic, but that's about the extent of outdoor comfort this time of year. Posters are consistent that Ibiza runs very quiet in February, with a limited choice of open accommodation and no clubs operating - just bars and restaurants serving the local population. Posters generally recommend basing in Ibiza Town for culture and food during this off-season stretch, and note that travelers specifically wanting warmer February beach weather would do better in Malaga or the Canary Islands, which are in their peak winter season at the same time.
Ibiza-forum threads on April weather describe a genuinely lovely but not-quite-summer month: warm in sheltered, sunny spots, properly cool the moment wind picks up or the sun dips, and evenings cold enough that regulars pack jeans and a jumper alongside their shorts. The sea is the clearest giveaway that summer hasn't arrived - still cold enough for only a brief dip, nowhere near warm enough for a young child to splash around comfortably for long. Posters call April and May, together, the best stretch of the year for a certain kind of visitor: crisp air, plenty of sun, cooler nights, and beaches that stay genuinely uncrowded before the summer season takes over. The standing advice is simply to dress in layers and treat the sea as scenery rather than a swimming destination this early in the year. The record: 19.5C days feeling like 18C, 11.5C nights, just 31mm across 4.6 days, a chilly 17C sea, 66 percent humidity, 11.2 hours of sun and wind averaging nearly 24 km/h.
June is the month Ibiza regulars name as the most reliable for weather - long days, the least chance of rain in the year, which our row puts at 1.2 precipitation days and 8mm - with a cardigan for the evening the only concession. The season is the other half of the answer, and it turns inside the month. Early June is quiet, with the opening parties on but the clubs not really running until mid-June, after which the crowds build; you still get nothing like July and August. One regular's phrase for early June is being the first person to arrive at a party, and the bonus they point out is service, because the hotels, bars and restaurants are fresh. The record: 27.5C days that feel like 28C, 18.8C nights, 13.5 hours of sun and a 23.9C sea.
July and August are the two months regulars will guarantee a warm sea, and July is the one they pick of the pair if the clubbing is the point. It is hot - the countryside burns off by midsummer and some visitors find the middle of the day too much to be out in - with the sea breeze doing the work, and evenings that stay very warm. The crowd is not spread evenly: one early-July report has the beaches manageable and the clubs packed. If avoiding people is the aim, the advice is the blunt one, which is not to come in July or August at all. The record: 30.3C days that feel like 32C, 22.1C nights, 0.5 precipitation days, 13.4 hours of sun and a 27.9C sea.
Ibiza's forum calls August hotter and more humid than July, with sea temperatures over 27°C and reliably good weather guaranteed for the beach. Regulars flag August as the single most crowded month on the island — the French, Italian, Spanish and British holiday calendars all overlap — so those wanting the same reliable weather with fewer people are pointed toward July instead.
Ibiza-forum threads on September describe a real handoff: the crowds of August thin out fast, most Italian visitors gone by the end of the first week, and by the last week the island runs genuinely quieter and calmer - San Antonio and Ibiza Town stay busy but without August's crush or prices. Weather-wise, posters call September and October among their favorite months, typically great, though end-of-summer storms do roll through and an occasional torrential downpour is part of the deal, usually short-lived rather than ruining the day. The overall vibe shifts too - relaxed, closing parties across the clubs, free parties filling the gaps. The record: 27.8C days feeling like 30C, 19.9C nights, 76mm across 4.5 days, a 26.7C sea, 67 percent humidity and 10.7 hours of sun.
Ibiza-forum threads on December weather are consistent that the sea is firmly off the table for swimming - cold enough that even a quick dip isn't appealing - while daytime air temperatures can still climb into the high teens or low twenties Celsius in full sun, a pleasant surprise for visitors expecting a harsher winter. Nights run genuinely cold, into the upper single digits Celsius on the coldest stretches, and wind is a regular feature that makes it feel colder still. The clubbing season that defines Ibiza's summer reputation is entirely dormant by December, but posters frame this as an upside: deserted beaches, the countryside at its most beautiful, and the island's best restaurants still open at off-season prices. Rain shows up on a good number of days without ever being described as a washout. The record: 17.3C days feeling like 15C, 8.8C nights, 38mm across 4.4 days, a 17.5C sea, 73 percent humidity and wind averaging over 23 km/h.
地図のイビサ島のカードから自分のメモを追加できます。