サンタバーバラ 5月の天気
サンタバーバラの5月:快適、雨が少ない、空気がきれい — 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
サンタバーバラでは12か月中6位 · 5月に訪れたい旅行先で1413か所中536位 · 快適スコア84/100(Aランク)
- 日中
- 22°C
- 夜
- 13°C
- 雨の日
- 1
- 日照
- 12.9 h
- 湿度
- 62%
- 日の長さ
- 14 h

5月のサンタバーバラについての旅行者の声
近くのチャネル諸島国立公園からのメモ(49 km)
サンタバーバラには5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チャネル諸島国立公園についてのメモです。
Channel Islands-forum threads on May are direct this sits inside the region's well-known gray stretch, overcast mornings and a hazy, muted coastal light common enough that locals have a nickname for the pattern. Posters describe afternoon winds picking up fairly reliably once the marine layer starts to burn off, usually after most kayak tours for the day have already wrapped, though crossings can still turn choppy with little warning. Regulars call the ferry crossing itself genuinely rough on an unsettled day, layers and something windproof standing advice even for a short island stay. Overnight camping trips aren't heavily promoted yet in May, ramping up more once summer proper arrives. Posters recommend checking a current marine forecast a few days out rather than trusting the mainland weather report. The record: 14.8C days feeling like 13C, 12.1C nights, 81 percent humidity and 8.7 hours of sun.
サンタバーバラのほかの月
Regulars name this month's own local phenomenon, June Gloom, a morning marine fog that regulars say burns off by around 10:30am most days but can roll back in fast at sunset - averaging about 22 foggy days across the month, occasionally enough to disrupt flights at the local airport. Our row backs that mild, genuinely dry read, 23.3C over 14.6C nights, with rain essentially absent, 2.9mm across half a day on average, and humidity at 61 percent. Regulars are consistent there's no way to predict which days get hit, foggy one morning and clear the next, with a short drive inland to Santa Ynez reliably escaping it into sun and real heat. Mornings spent on State Street or at the mission, afternoons at the beach once the fog lifts, is the standard local rhythm. The sea sits at a cool 17C. The record: 13.4 hours of sun, a 13.8 kph wind and AQI 38.
Regulars name this and September as the region's best weather months, with the summer fog largely gone and rain not yet arrived, making it a genuinely reliable stretch rather than a compromise season. Our row backs the settled, dry read, 24.8C over 13.8C nights, with rain minimal, 11.1mm across under a day, and humidity down to 54 percent. Regulars are consistent that evenings and nights still turn genuinely chilly enough for at least a light jacket, even on a warm-feeling afternoon, and that a rain jacket is rarely needed this time of year even if an umbrella is worth packing just in case. The sea sits at a cool 18.2C. The record: 10.3 hours of sun, a 12.7 kph wind and AQI 35.
Santa Barbara-forum threads on January weather are candid that the month is genuinely a gamble - fog, rain and grey skies are all real possibilities, but so is a perfectly sunny, mild day, and posters describe the actual mix as coming down to luck more than a predictable pattern. What's consistent regardless of the specific day: it runs noticeably cooler than the region's summer reputation suggests, and the ocean itself sits cold enough that swimming isn't appealing even on a warm afternoon. Regulars recommend layering, plus a proper windproof or rain-ready jacket kept handy. Despite the weather roulette, posters are consistent that January is still worth the visit for anyone willing to take the gamble, wine country day trips and the waterfront both holding up fine under cloud as well as sun. The record: 18.2C days feeling like 16C, 8.2C nights, a notably high 108mm across 5.4 days, a 14.2C sea, 64 percent humidity and 8.1 hours of sun.
July in Santa Barbara is when June Gloom thins to a morning habit. The marine layer that grey-outs May and June usually burns off by the afternoon in July, and regulars are clear that no one can predict it - foggy one day, sunny the next, with fog on about 22 June days in an average year, enough to disrupt flights out of the airport a dozen times in a month. The escape is a drive: over the 154 to Santa Ynez, about 45 minutes, where the same day is sunny and in the 80s. Our row gives 25.2C reading as 28C, with 0.5 precipitation days and an 18.2C sea. The record: 15.8C nights, humidity 62 percent and 13.3 hours of sun.
地図のサンタバーバラのカードから自分のメモを追加できます。
サンタバーバラの気候平年値 — 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月のサンタバーバラの混雑
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。
ショルダーシーズン天気は平年並みの月(推定)
ピークの混雑混雑ショルダーシーズン閑散
サンタバーバラの天気が良い月
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)。
天気はまずまずサンタバーバラの天気がピークを迎えるのは7月〜9月で、特に良いのは8月ごろです。
天気が最高天気はまずまず天気が厳しい
5月のサンタバーバラのイベント
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。
- 季節
May gray and June gloom
5月1日〜7月10日 · 例年霧のシーズンA marine layer sits over the coast most mornings in early summer and burns off around midday, or does not. Ten minutes inland over the pass it is clear and much warmer. 出典 ↗
- 自然
Blue and humpback season
5月15日〜9月15日 · 例年ホエールシーズンBlues and humpbacks feed in the channel off the Channel Islands through the summer, the largest animal that has ever lived on a day trip from a small harbour.
近くで開催中のイベント
サンタバーバラから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。
サンタバーバラはどこにある?
5月のサンタバーバラ — よくある質問
- 5月はサンタバーバラを訪れるのに良い時期ですか?
- サンタバーバラの5月:快適、雨が少ない、空気がきれい — 訪れるのに絶好の時期。SeasonMapの快適スコアでは、サンタバーバラの12か月中6位です(84/100)。
- 5月のサンタバーバラはどんな天気ですか?
- 5月のサンタバーバラは、平均最高気温21.7°C、最低気温12.5°C、降水量は約10 mmで、雨の日はおよそ1日です。
- 5月のサンタバーバラの大気質はどうですか?
- 5月のサンタバーバラの米国大気質指数(US AQI)は、平均約39です。
300 km圏内:Sequoia National ParkのCrystal Cave tours(5月20日〜9月10日ごろ)、Big SurのCoastal wildflowers(2月15日〜5月15日ごろ)。