午前中は快晴が続き、穏やかな登高が期待できる。山頂での体感気温は7度前後で推移する見込みだ。ベースレイヤーは速乾性素材、ミッドレイヤーにフリースや薄手のダウン、アウターには防水透湿性のレインジャケットを用意し、三層で臨むこと。
午後15時頃から弱い霧雨が降り始め、気温は10度前後まで下がる。濡れることで体感はさらに低下し、低体温症のリスクが高まる。特に旧道(連続する滝)では、濡れた岩場での滑落に厳重な注意が必要となる。足元は午前中ドライだが、午後から沢筋を中心にウェットコンディションへ移行する。防水性のトレッキングシューズは必須装備だ。
ヒグマ生息地であるため、複数人での行動を原則とし、熊鈴などの対策を怠らないこと。夕方にかけて気温は8度台まで下がり、夜間は快晴となるが、3度前後まで冷え込む。日没後の行動は避けるのが賢明だ。雷や強風のリスクは低いが、視程の変化と気温低下には常に警戒すること。
北海道
斜里岳
Mt. Shari
2026年7月3日 07:05 更新
沢筋は穏やか 午後から霧雨と冷え込みに注意
Clear morning for stream routes. Prepare for light drizzle and cooler
現在の気象状況 — Current Conditions
▲ 山頂エリア (Summit)
気温 Temp
+8.7°C
風速 Wind
0.4m/s
E
天候 Weather
☀️ 快晴
体感 Feels Like
+7.1°C
▼ 登山口・山麓エリア (Base)
気温 Temp
+14.1°C
風速 Wind
0.4m/s
NW
天候 Weather
☀️ 快晴
標高 Altitude
688m
山頂の3時間予報 — Summit Forecast
09:00
+11°C
0.4m/s
NE
💧 0mm
(2%)
12:00
+12°C
0.5m/s
S
💧 0mm
(33%)
15:00
+10°C
1.6m/s
SSE
💧 0.1mm
(67%)
18:00
+8°C
2.6m/s
S
💧 0mm
(16%)
21:00
+5°C
1.7m/s
S
💧 0mm
(0%)
00:00
+3°C
0.7m/s
SSW
💧 0mm
(0%)
03:00
+5°C
0.2m/s
SSW
💧 0mm
(0%)
気象分析 — Analysis Report
日本語
コンディション概ね良好 — 通常の山岳安全対策を実施すること
English
Conditions generally good — Conduct standard mountain safety measures
The morning offers clear skies and calm conditions for ascending Mt. Shari. Summit temperatures will feel around 7 degrees Celsius. A robust layering system is crucial: a wicking base layer, a fleece or thin down mid-layer, and a waterproof-breathable outer jacket. This setup is vital to manage the temperature fluctuations throughout the day.
From approximately 3 PM, light drizzle is expected, with temperatures dropping to around 10 degrees Celsius. Wet conditions will further reduce the perceived temperature, significantly increasing the risk of hypothermia, especially if clothing becomes saturated. Particular caution is advised on the Kyudo (Old Route) with its continuous waterfalls, as wet rocks will become extremely slick, posing a severe slipping and falling hazard.
Ground conditions will be predominantly dry in the morning, but stream sections will transition to wet conditions in the afternoon. Waterproof trekking shoes with good grip are essential for navigating these potentially slippery areas. As this region is a known habitat for brown bears, always travel in groups, carry a bear bell, and exercise strict food management.
Temperatures will continue to fall to around 8 degrees Celsius by evening. While the night will be clear, expect temperatures to cool significantly to around 3 degrees Celsius. Planning to conclude your activity before sunset is strongly recommended to avoid colder conditions and reduced visibility.
From approximately 3 PM, light drizzle is expected, with temperatures dropping to around 10 degrees Celsius. Wet conditions will further reduce the perceived temperature, significantly increasing the risk of hypothermia, especially if clothing becomes saturated. Particular caution is advised on the Kyudo (Old Route) with its continuous waterfalls, as wet rocks will become extremely slick, posing a severe slipping and falling hazard.
Ground conditions will be predominantly dry in the morning, but stream sections will transition to wet conditions in the afternoon. Waterproof trekking shoes with good grip are essential for navigating these potentially slippery areas. As this region is a known habitat for brown bears, always travel in groups, carry a bear bell, and exercise strict food management.
Temperatures will continue to fall to around 8 degrees Celsius by evening. While the night will be clear, expect temperatures to cool significantly to around 3 degrees Celsius. Planning to conclude your activity before sunset is strongly recommended to avoid colder conditions and reduced visibility.
山岳ガイド — Mountain Guide
概要 Overview
北海道斜里郡清里町に位置する標高1,547mの百名山。オホーツク海に裾野を伸ばす独立峰の山容から「斜里富士」とも呼ばれる、知床エリアを代表する秀峰。
特徴・地形 Features
沢沿いに登る旧道(連続する滝の景観)と、稜線をたどる新道のループルートが特徴。山頂稜線は森林限界を超え、北海道らしい広大なパノラマが広がる。
ベストシーズン Best Season
7月〜9月中旬。沢ルートは増水・滑滝注意。残雪期はピッケル・アイゼン要。
主要ルート Main Routes
清岳荘起点・旧道〜山頂〜新道のループ(最一般的)、三井コース。
注意点・危険箇所 Cautions
旧道沢ルートは滝の連続で滑落事故が多発。沢の急増水時は通過不可。ヒグマ生息地。
アクセス Access
JR釧網本線清里町駅から車・タクシーで清岳荘へ。バス便はなし。
※ 本ガイド情報は一般的な参考資料であり、最新の登山道状況・規制情報は各自治体・登山口の公式情報をご確認ください。