Alta 4月の天気
Altaの4月:寒い、雨が多い、雪が確実 — 訪れるのにとても良い時期。
2026年9月更新 · ERA5再解析による気候平年値
Alta🇺🇸 アメリカ合衆国 · ロッキー山脈 · スキー79
Altaでは12か月中6位 · 4月に訪れたい旅行先で1413か所中648位 · 快適スコア79/100(Bランク)
- 日中
- 4°C
- 夜
- -4°C
- 雨の日
- 13
- 日照
- 10.4 h
- 湿度
- 62%
- 日の長さ
- 13 h

4月のAltaについての旅行者の声
近くのパークシティからのメモ(13 km)
Altaには4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パークシティについてのメモです。
Forum posters describe April as spring-skiing conditions rather than deep winter - daytime highs commonly in the high-40s to low-50sF, overnight temps still around freezing, and snow that softens through the day rather than staying powdery. Posters recommend planning for hard-packed snow first thing in the morning that turns soft by mid-morning and heavier, slushier by afternoon if the previous night dropped below freezing, though a late-season storm can still bring some of the best skiing of the year. Posters note most resorts close around the second weekend of April, with locals specifically prizing the tail end of the season for the chance to ski in the morning and eat lunch at an outdoor cafe in the sun the same day.
Altaのほかの月
Alta-forum threads on a September visit describe lift-served hiking access to Albion Basin as genuinely ending right around the start of the month, posters naming a season that typically runs from late June through the first few days of September. Regulars call Cecret Lake, Red and White Pine, Catherine's Pass and Grizzly Gulch real standard trails around Alta, several posters naming these the go-to routes in Little Cottonwood Canyon. Posters call fall color genuinely starting the last week of September into early October, several regulars naming this a reason to time a trip toward the later part of the month. Regulars call September mornings genuinely cool even with warm afternoons, several threads recommending layers for early hikes. Posters recommend checking lift and parking access before planning around Albion Basin, several regulars calling this standard given how the cutoff shifts year to year. The record: 17C days, 7.8C nights, 96.7mm across 12 days and 52 percent humidity.
Alta-forum threads on a November visit describe opening day as genuinely conditions-dependent, posters naming a typical window around November eighteenth to twenty-first though timing shifts with how much snow has fallen by then. Regulars call Alta's higher elevation and heavier natural snowfall a real advantage, several posters naming this why early-season conditions here hold up better than at nearby Utah resorts. Posters call a confirmed opening date genuinely unreliable to plan around, several regulars recommending flexible travel dates for a November trip. Regulars call early-season terrain considerably more limited than full winter, several threads warning only some runs are typically open right after opening day. Posters recommend checking daily snow reports before finalizing plans, several regulars calling this standard given how much conditions shift early in the season. The record: 1.4C days, -6.3C nights, 73mm across nearly 9 days and 66 percent humidity.
Alta-forum threads on a July visit describe Albion Basin as genuinely at peak wildflower bloom, posters naming the seasonal gate opening July first as the real signal hiking there is finally possible. Regulars call the Cecret Lake trail a real standard pick, several posters naming it an easy, family-friendly way to reach the wildflower meadows. Posters call parking genuinely limited once the gate opens, several regulars recommending an early start or the shuttle to avoid a long wait at the trailhead. Regulars call July mornings comfortably cool before afternoon warmth sets in, several threads naming this the real window for a comfortable hike. Posters recommend checking bloom reports before a July trip, several regulars calling timing genuinely variable year to year depending on the past winter's runoff. The record: 22.8C days, 13.4C nights, 86.4mm across nearly 14 days and 44 percent humidity.
Alta-forum threads on an October visit describe this as genuinely off-season for skiing, posters calling the resort typically not opening lifts until around November eighteenth, conditions permitting, well after most October trips. Regulars call fall colors a real reason to visit anyway, several posters naming late September into early October a beautiful, genuinely lonely window for canyon scenery. Posters call weather risk genuinely rising as October goes on, several regulars warning an early system is possible even before the resort itself is ready to open. Regulars call this a real quiet stretch between summer hiking season and the winter rush, several threads describing October as neither one thing nor the other. Posters recommend treating an October trip as a scenery visit rather than a ski trip, several regulars calling this the honest expectation. The record: 7.7C days, -0.8C nights, an extraordinarily high 75.3mm across over 8 days and 58 percent humidity.
地図のAltaのカードから自分のメモを追加できます。
Alta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Alta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)
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ピークの混雑混雑ショルダーシーズン閑散
Alta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Altaの天気が最も良いのは1月、3月、12月です — ひと続きのシーズンではなく、別々の時期です。
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天気が最高天気はまずまず天気が厳しい
4月のAlta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
Snow season
スキーシーズンAbout 63 cm of snow falls in the month.
気候の平年値から算出
近くで開催中のイベント
Alta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。
Altaはどこにある?
地図を読み込み中…
4月のAlta — よくある質問
- 4月はAltaを訪れるのに良い時期ですか?
- Altaの4月:寒い、雨が多い、雪が確実 — 訪れるのにとても良い時期。SeasonMapの快適スコアでは、Altaの12か月中6位です(79/100)。
- 4月のAltaはどんな天気ですか?
- 4月のAltaは、平均最高気温3.5°C、最低気温-4.4°C、降水量は約93.3 mmで、雨の日はおよそ13日です。
- 4月のAltaの大気質はどうですか?
- 4月のAltaの米国大気質指数(US AQI)は、平均約62です。
- 4月のAltaは雪が降りますか?
- 4月のAltaの降雪量は、およそ63.2 cmです。
300 km圏内:Park CityのSki season(11月20日〜4月12日ごろ)、Salt Lake CityのSki season(11月20日〜4月20日ごろ)。