山岳レポート – 日本山岳気象レポート

Latest Report — 2026-07-28 07:07 JST

槍ヶ岳：濡れた岩稜は滑りやすい。低体温に警戒

今日の槍ヶ岳は午前7時半現在、弱い雨が降り、山頂の気温は7.3℃、体感は5.3℃となっている。湿度99%と高く、濡れた体には一層の冷え込みを感じる。山麓との気温差は10℃と大きく、標高を上げるにつれて体感は急激に低下する。日中にかけて雨は強まり、正午には強い雨が予想されている。午後3時以降も雨は続き、夜間も弱い雨や霧雨が翌早朝まで残る見込みだ。地面は完全にウェットな状態であり、穂先の鎖場や梯子といった岩稜帯は滑りやすくなっている。山頂直下の落石リスクも通常より高まるため、慎重な行動が求められる。気温が低く降雨と高湿度が続くため、低体温症のリスクが非常に高い。完全防水のレインウェア上下、防水手袋、帽子は必須装備だ。行動中も休憩時も、濡れたウェアは速やかに着替え、ミッドレイヤーを重ねて保温を徹底すること。行動食と水分補給も怠らない。現在の風速は穏やかだが、突風時にはバランスを崩す可能性もある。雷の予報はないが、夏山特有の天気の急変には常に注意を払い、空の変化を注視すること。午後の降水確率も高く、稜線上での行動は危険度が増す。今日の行動は無理をせず、早めの判断で引き返すことも視野に入れること。

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81 件

2026 / July

24 reports

Mt. Yari — 槍ヶ岳

濡れた岩稜は滑りやすい。低体温に警戒

Wet and Chilly Conditions on Exposed Ridges. Hypothermia Risk Present.

Mt. Yari — 槍ヶ岳

槍ヶ岳稜線冷涼。午後の霧雨に備えよ

Cool and Clear Morning on Exposed Ridges. Prepare for Afternoon Light Rain.

Mt. Yari — 槍ヶ岳

槍ヶ岳快晴の岩稜帯。穂先は突風に注意

Clear Alpine Conditions. Beware of Intermittent Strong Gusts on Exposed Ridges.

Mt. Yari — 槍ヶ岳

槍ヶ岳快晴も午後には雷雨の兆候

Clear morning on Yari. Anticipate afternoon storm risk. Descend early for

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先は快晴ドライ。快適な登攀

Clear Skies and Dry Rock on Mt. Yari. Ideal Conditions for Summit Ascent.

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先はドライ。視界良好で絶好の登攀日和

Clear Skies and Calm Winds. Excellent Conditions for Exposed Rock Climbs.

Mt. Yari — 槍ヶ岳

槍ヶ岳午後霧雨で視界悪化。早めの下山を

Clear Morning on Yari. Expect Afternoon Drizzle and Reduced Visibility.

Mt. Yari — 槍ヶ岳

午前中の好天。午後は濡れる岩稜に注意

Clear Morning on Rocky Peaks. Anticipate Afternoon Drizzle and Wet Conditions.

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先薄霧に包まれ視界不良注意

Misty morning on the summit. Expect improved visibility and mild winds later.

Mt. Yari — 槍ヶ岳

午後から雨と視界不良。濡れた岩稜に注意

Rainy Afternoons and Poor Visibility. Ascend Early, Prioritize Safety on

Mt. Yari — 槍ヶ岳

槍ヶ岳午後天気急変穂先鎖場は午前中勝負

Clear Morning for Hozaki Chains. Afternoon Rain Risk Demands Early Descent.

Mt. Yari — 槍ヶ岳

日中は好天と穏やかな風。穂先は午前中の通過を

Stable Conditions on Yari Peak. Secure Summit Push Early, Prepare for Evening

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先はドライ。午後のにわか雨に備えよ

Stable Ridge Conditions at Yari. Expect Dry Rock, but Afternoon Showers

Mt. Yari — 槍ヶ岳

穂先は霧雨に濡れ視界不良。滑落に警戒

Poor Visibility and Cold on Summit. Expect Wet, Slippery Rock Climbing. Proceed

Mt. Yari — 槍ヶ岳

槍ヶ岳稜線は穏やか。視界良好な一日

Calm Conditions on Mount Yari. Exposed Ridges are Dry. Enjoy Clear Views.

Mt. Yari — 槍ヶ岳

槍ヶ岳快晴視界良好。穂先の鎖場はドライ

Clear Conditions on Yari-gatake. Ideal for exposed rock routes.

Mt. Yari — 槍ヶ岳

午前は快晴の槍ヶ岳。午後から岩稜は霧雨

Clear Morning on Rocky Ridges. Afternoon Drizzle Expected. Prepare for Cooler

Mt. Yari — 槍ヶ岳

稜線は午後から雨。早めの行動を

Clear morning on alpine ridges, but prepare for afternoon rain and temperature

Mt. Yari — 槍ヶ岳

槍ヶ岳は薄曇り視界不良穂先の岩稜は湿潤

Limited visibility at the summit. Expect moist rock on exposed sections.

Mt. Yari — 槍ヶ岳

穂先は霧雨に覆われ視界不良。滑落に警戒

Misty and Low Visibility on Rocky Ridges. Exercise Extreme Caution on Hozaki.

Mt. Yari — 槍ヶ岳

冷涼な岩稜帯午後雨具は必須

Cool Rocky Ridges with Light Winds. Afternoon Rain Expected.

Mt. Yari — 槍ヶ岳

午後は霧雨と気温低下。穂先の岩場は滑りやすい

Summit Visibility Low. Wet Rock Sections on Ascent. Prepare for Afternoon Rain.

Mt. Yari — 槍ヶ岳

雨霧に包まれた槍ヶ岳濡れた岩稜に細心の注意

Wet and Foggy Ascent. Expect Slippery Chains and Ladders on Yariho.

Mt. Yari — 槍ヶ岳

槍ヶ岳穏やかな朝。午後から雲量増加

Stable Daytime Conditions on Yari-ga-take. Prepare for Wet Rocks Overnight.

2026 / June

30 reports

Mt. Yari — 槍ヶ岳

槍ヶ岳濡れた岩稜に霧雨。滑落に注意

Wet and Cold Conditions on Rocky Ridges. Prepare for Afternoon Drizzle.

Mt. Yari — 槍ヶ岳

午後から霧雨予想。濡れた岩稜に足元注意

Afternoon Drizzle Brings Wet Rock Conditions. Prepare for Chilly Summit

Mt. Yari — 槍ヶ岳

日中の岩稜帯はドライ。午後雷リスク警戒

Stable Morning Conditions on Exposed Ridges. Aim for Early Summit Push to Avoid

Mt. Yari — 槍ヶ岳

岩稜帯は不安定な突風。午後の天候変化に備え早めの行動を

Moderate Alpine Conditions. Prepare for Afternoon Cloud Build-up on Exposed

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先は雨と突風で滑落危険

Severe Rain and Strong Gusts on Exposed Ridges. Hypothermia Risk High. Avoid

Mt. Yari — 槍ヶ岳

穂先鎖場は滑りやすい。行動は早めに

Wet Rock Ridges and Low Visibility. Exercise Extreme Caution on Chains Today.

Mt. Yari — 槍ヶ岳

槍ヶ岳は微風で穏やか。穂先の岩稜は冷涼

Calm Conditions for Alpine Ascent. Prepare for Cold and Afternoon Cloudiness.

Mt. Yari — 槍ヶ岳

穂先薄曇り気温低下午後から注意

Cool, cloudy summit conditions. Prepare for afternoon temperature drop. Secure

Mt. Yari — 槍ヶ岳

槍ヶ岳稜線は霧中。慎重な行動を

Low Visibility and Cold Winds on Mt. Yari Summit. Layer Up for Exposed Ridges.

Mt. Yari — 槍ヶ岳

槍ヶ岳濡れた岩稜、視界不良に注意

Low Visibility and Cold Rain on Ridgelines. Expect Wet and Slippery Conditions.

Mt. Yari — 槍ヶ岳

日中から雨強まる。濡れた岩稜帯に滑落警戒

Rainfall Intensifies Afternoon. Wet and Slippery Rock Climbing. Hypothermia

Mt. Yari — 槍ヶ岳

穂先の鎖場は穏やか。視界良好

Stable Weather for Ascent. Excellent Visibility on Exposed Ridges Today.

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先の鎖場滑りやすい午後霧雨

Wet rock sections on summit approach. Expect poor visibility and slick

Mt. Yari — 槍ヶ岳

穂先の鎖場は安定。午後の気象変化に注意

Stable Dry Conditions on Yarigatake's Summit Ridge. Optimal for Ascent.

Mt. Yari — 槍ヶ岳

槍ヶ岳稜線は風穏やか。穂先アタックに好機

Calm Conditions on Yari Summit. Good Visibility for Ascent to Hozaki.

Mt. Yari — 槍ヶ岳

槍ヶ岳氷点下の岩稜視界不良に霧雨警戒

Icy conditions on exposed ridges. Expect poor visibility and afternoon drizzle.

Mt. Yari — 槍ヶ岳

槍ヶ岳日中穏やか。岩稜帯は露出

Mild cloudy conditions with light winds. Exposed rock ridges are dry. Prepare

Mt. Yari — 槍ヶ岳

槍ヶ岳の岩稜はドライ。穂先の鎖場は午前中の通過が肝要

Clear Rock Climbing Conditions on Yarigatake. Expect Dry Rock Faces Through

Mt. Yari — 槍ヶ岳

穂先の鎖場濡れた岩肌に冷たい霧雨

Damp and Cold Summit Conditions. Wet Rock Faces and Reduced Visibility.

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先は午前中勝負午後から天候下り坂

Clear Morning on Yari-ga-take. Expect Afternoon Moisture and Overnight Snow.

Mt. Yari — 槍ヶ岳

快晴の槍ヶ岳穂先ルートは午前中勝負

Clear skies and calm winds offer prime morning ascent. Prepare for afternoon

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先は冷気とガスに注意

Chilly Conditions and Restricted Visibility on Yari Peak. Expect Clouds by

Mt. Yari — 槍ヶ岳

午後から霧雨。穂先の足元は冷え込みで滑りやすい

Afternoon Drizzle and Cooling. Prepare for Worsening Conditions on Exposed

Mt. Yari — 槍ヶ岳

槍ヶ岳視界不良と低温続く。穂先の鎖場は慎重に

Low Visibility and Cold Conditions at Yari. Expect Drizzle Afternoon.

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先ガス中。午後から視界回復へ

Low Visibility Morning at Jagged Peak. Clearing Afternoon. Prepare for Alpine

Mt. Yari — 槍ヶ岳

穂先はガスの中。足元を確実に進め

Summit Visibility Limited. Secure Foothold on Exposed Rock Sections.

Mt. Yari — 槍ヶ岳

穂先周辺濡れた岩稜帯に視界不良。慎重な行動を

Low Visibility and Damp Conditions on Summit. Exercise Caution on Exposed Rocky

Mt. Yari — 槍ヶ岳

雨とガスで濡れた岩稜穂先は滑落注意

Cold Rain and Poor Visibility on Summit. Conditions Improve by Afternoon.

Mt. Yari — 槍ヶ岳

霧雨で濡れる岩稜。残雪に足元注意

Misty Rain and Cold Conditions. Residual Snow Requires Careful Footing.

Mt. Yari — 槍ヶ岳

穏やかな快晴。穂先の残雪と凍結に注意

Clear skies and light winds, but residual snow on routes. Prepare for cold

2026 / May

27 reports

Mt. Yari — 槍ヶ岳

残雪の槍ヶ岳。岩稜帯は足元注意

Mild conditions with residual snow on rocky terrain. Expect clear skies by

Mt. Yari — 槍ヶ岳

残雪の穂先は快晴微風。岩稜露出箇所に注意

Clear Skies, Mild Winds. Firm Spring Snow on Upper Slopes. Prepare for Exposed

Mt. Yari — 槍ヶ岳

残雪と強風の稜線。穂先の鎖場は極めて危険

Lingering Snowpack with Strong Gusts. Extreme Caution for Summit Approach.

Mt. Yari — 槍ヶ岳

日中残雪と岩稜露出。午後は霧雨で濡れる斜面。

Wet Snow and Exposed Rock Mix. Afternoon Rain Increases Slip and Hypothermia

Mt. Yari — 槍ヶ岳

残雪と岩稜が混在。穂先の鎖場は慎重に

Mixed Snow and Rock Conditions. Ascend Carefully on Icy Sections.

Mt. Yari — 槍ヶ岳

残雪と低い視界。慎重な行動が求められる

Melted Snowpack and Poor Visibility. Navigate Carefully on Upper Slopes.

Mt. Yari — 槍ヶ岳

残雪と岩稜の穂先。好天を逃さず

Excellent Visibility on Mt. Yari. Navigate Mixed Snow and Rock on Yariho Peak.

Mt. Yari — 槍ヶ岳

穂先の鎖場凍結注意。残雪と霧雨で足元を固めよ

Misty Conditions on Summit. Expect Wet Snow and Icy Patches on Exposed Rock.

Mt. Yari — 槍ヶ岳

残雪の槍ヶ岳視界不良。穂先鎖場に注意

Snowy Summit with Poor Visibility. Icy Sections on Chains and Ladders.

Mt. Yari — 槍ヶ岳

残雪の槍ヶ岳穂先の鎖場は慎重な足運びを

Spring Snow Conditions on Upper Peaks. Expect Moderate Winds and Good

Mt. Yari — 槍ヶ岳

強い雨と湿雪。穂先への登攀は中止を

Heavy Rain and Wet Snow on Yari. Summit Climb via Exposed Chains Extremely

Mt. Yari — 槍ヶ岳

残雪と岩稜のミックス。早めの行動で山頂を目指せ

Morning Window for Summit Push. Expect Mixed Snow and Rock Conditions.

Mt. Yari — 槍ヶ岳

残雪の穂先は快晴穏やか。午後気温上昇に注意

Clear Summit Conditions with Melting Snow. Prepare for Cold Evening.

Mt. Yari — 槍ヶ岳

残雪の岩稜は硬く締まる。快晴の展望

Clear Skies and Calm Winds. Expect Firm Snow on Ascent, Exposed Rock on Ridge.

Mt. Yari — 槍ヶ岳

快晴微風の好条件。残雪と凍結箇所に厳重警戒

Clear Skies and Calm Winds. Expect Firm Snow and Icy Sections on Steep Terrain.

Mt. Yari — 槍ヶ岳

快晴微風の槍ヶ岳。残雪と凍結箇所に注意を

Excellent Weather for Ascent. Expect Mixed Snow and Icy Rock Conditions.

Mt. Yari — 槍ヶ岳

春の陽差し穏やか。残雪の岩稜は慎重に

Clear skies, mild winds. Firm snow on upper slopes. Summit traverse requires

Mt. Yari — 槍ヶ岳

穂先凍結と午後からの降雪。残雪期アルパインの覚悟で

Mixed Alpine Conditions on Yari. Expect Icy Holds and Afternoon Snowfall.

Mt. Yari — 槍ヶ岳

午後から新雪と視界不良。急斜面に注意

New Snow and Poor Visibility Midday. Exercise Caution on Exposed Slopes.

Mt. Yari — 槍ヶ岳

残雪の岩稜帯午後から霧雨と降雪

Clear Morning on Exposed Ridges. Prepare for Afternoon Precipitation and Cold.

Mt. Yari — 槍ヶ岳

残雪の槍、日中緩むも岩稜は凍結注意

Spring Snowpack Softens. Ascend Icy Alpine Rock Early. Prepare for Diurnal

Mt. Yari — 槍ヶ岳

快晴の槍ヶ岳凍結した岩稜帯に注意

Clear Skies and Cold Alpine Conditions. Expect Firm Snow and Icy Sections on

Mt. Yari — 槍ヶ岳

槍ヶ岳穂先は強風と極寒。視界不良で行動困難

Summit blizzard with poor visibility. Extreme cold and gusty winds demand

Mt. Yari — 槍ヶ岳

湿雪と凍結の穂先。午後の降雪と急激な寒の戻りに備えろ

Midday Rain Turning to Heavy Snow. Summit Ridgelines Dangerous with Gusts.

Mt. Yari — 槍ヶ岳

青空広がる穏やかな残雪期。早朝の雪面は引き締まる

Clear Skies and Calm Winds. Stable Snowpack on Ascent Routes.

Mt. Yari — 槍ヶ岳

残雪の稜線は静穏。締まった雪面が続く

Calm Conditions on Snow-Covered Ridges. Expect Firm Snow and Clear Visibility.

Mt. Yari — 槍ヶ岳

残雪期の槍ヶ岳、早朝は硬い雪面に注意

Clear Skies, Calm Winds. Firm Spring Snow on Alpine Ridges. Early Morning