モントレー 8月の天気
モントレーの8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
モントレーでは12か月中2位 · 8月に訪れたい旅行先で1413か所中382位 · 快適スコア87/100(Aランク)
- 日中
- 20°C
- 夜
- 13°C
- 雨の日
- 0
- 日照
- 12.2 h
- 湿度
- 83%
- 日の長さ
- 14 h

8月のモントレーについての旅行者の声
Monterey's forum calls August one of the foggiest months of the year, with roughly half of August days seeing some fog — mornings can start grey and clear to sun by afternoon, or stay socked in past 3pm. Regulars flag the peninsula's sharp microclimates as the real story: Pacific Grove and Pebble Beach see more fog than Monterey itself, while Carmel Valley inland sees very little — layers are essential regardless of where you're headed.
モントレーのほかの月
Regulars are specific this month splits into two real halves - the first typically sunny and warm, an Indian-summer stretch some years pushing into the 80s Fahrenheit, while the second cools off with a real chance of fog rolling in or light-to-moderate rain, though genuine rain stays rare this early. Our row backs that mild, genuinely dry read, 21C over 11.6C nights, with rain minimal at 13.9mm across just 1.4 days and humidity at 77 percent. Regulars are consistent this counts among the sunniest months on the coast overall despite the back-half cooling, layers the standard advice for a day that can swing from warm sun to fog. The sea sits at a cold 15.4C, bracing for most swimmers regardless of the air temperature. The record: 9.8 hours of sun, an 11.8 kph wind and AQI 35.
Regulars name this June Gloom, a thick marine layer that can sit overcast and foggy all day some visits or burn off to a beautiful afternoon on others - not the low, visibility-restricting kind of fog but more like a persistent cloud ceiling, genuinely unpredictable day to day. Our row backs the cool, damp read that fog implies, 18.9C over 11.3C nights, with rain essentially absent, 0.4mm across under a day, and 81 percent humidity from the marine air rather than rain itself. Regulars are split on how much it bothers them - one calls it thoroughly depressing given blue sky is visible just a few miles inland, while most say layering appropriately makes it a non-issue with plenty to do regardless. The sea stays cold at 14.4C. The record: 13.2 hours of sun, a 14.8 kph wind and AQI 36.
Monterey-forum threads on December weather are candid that it swings between genuinely lovely and properly rainy with little warning, chilly regardless of which version shows up, especially right on the water. Posters describe the appeal both ways: a clear day delivers brilliantly sunny conditions that regulars call some of the best sunset light of the year, while a stormy stretch brings dramatic cloud formations and crashing waves some visitors find just as compelling. Coastal storms are described as short-lived, typically a day or so before clearing. The clear upside is thinner crowds than summer, giving spots like Cannery Row and the aquarium a calmer feel. The record: 15.9C days feeling like 14C, 7.3C nights, 76mm across 7 days, a 13.7C sea, 78 percent humidity and 7.1 hours of sun.
July is one of Monterey's two foggiest months, and the forum is blunt about what that means: fog on roughly half the days, several days in a row without sun entirely possible, and a pattern of foggy mornings clearing around ten and the fog returning in the afternoon. Pacific Grove, Carmel and Pebble Beach get it worst. The temperature stays mild inside it - 65 to 75F, our row's 19.2C at 82 percent humidity - which is why layers is the whole advice. The escape is a short drive: five miles inland is about 20 degrees warmer under a cloudless sky. Our row records no precipitation days at all in July, which is the point - this is fog, not rain. The record: 12.3C nights, 13 hours of sun and a 13.9C sea.
地図のモントレーのカードから自分のメモを追加できます。
モントレーの気候平年値 — 8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。
8月のモントレーの混雑
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Monterey Car Week、アメリカ合衆国のSummer break、主な訪問国のうち2か国で学校休暇(推定)
ピークの混雑混雑ショルダーシーズン閑散
モントレーの天気が良い月
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)。
天気が最高モントレーの天気がピークを迎えるのは7月〜9月です。
8月にはMonterey Car Weekがあります。
天気が最高天気はまずまず天気が厳しい
8月のモントレーのイベント
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
Summer fog
6月1日〜8月31日 · 例年霧のシーズンThe upwelling that makes the bay so rich also makes the summer grey: fog most mornings and some full days, while Carmel Valley twenty minutes inland is clear. September and October are the sunny months here.
- 祭り
Monterey Car Week
8月7日〜16日モータースポーツの週末混雑早めの予約をTen days of auctions, the historic races at Laguna Seca and the Concours on the eighteenth fairway at Pebble Beach. It is the dearest week of the peninsula's year by a distance and Highway 1 stops working. 出典 ↗
近くで開催中のイベント
モントレーから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。
モントレーはどこにある?
8月のモントレー — よくある質問
- 8月はモントレーを訪れるのに良い時期ですか?
- モントレーの8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、モントレーの12か月中2位です(87/100)。
- 8月のモントレーはどんな天気ですか?
- 8月のモントレーは、平均最高気温20.3°C、最低気温13.2°C、降水量は約0.5 mmで、雨の日はおよそ0日です。
- 8月のモントレーの大気質はどうですか?
- 8月のモントレーの米国大気質指数(US AQI)は、平均約31です。
300 km圏内:Big SurのBlue and humpback whales offshore(7月1日〜10月15日ごろ)、Yosemite National ParkのTioga and Glacier Point roads open(5月10日〜11月10日ごろ)。