筑波山山頂は薄曇り、気温13.9℃、体感12℃で推移している。日中は薄曇りからほぼ晴れとなり、最高気温は15.4℃まで上がる見込み。山麓との気温差は約4℃あるため、標高差による気温変化を考慮した準備が必要となる。
地面コンディションは全体的にドライ傾向だが、湿度71%とやや高め。奇岩怪石が点在する筑波山では、日陰や湧水のある岩場区間で部分的に濡れている可能性がある。特に男体山・女体山の双耳峰に至る御幸ヶ原コースや白雲橋コースの岩場区間では、スリップに十分警戒すること。
風は日中を通して南寄りの風が2m/s台で吹くが、突風は13m/sから15m/s近くに達する予報が出ている。稜線や展望の良い奇岩怪石の露出した区間では体が煽られ、バランスを崩す危険性がある。行動中は常に足元と周囲の状況を確認し、強風時は無理せずやり過ごす判断も重要だ。体感気温は風のない場所で13〜15℃、突風時は10〜13℃程度まで低下する。ベースレイヤーは速乾性素材、ミッドレイヤーに薄手のフリースや長袖シャツ、アウターには防風性のあるジャケットを必ず携行すること。休憩時や風の強い場所ではフリースなどを重ね着し、低体温症のリスクを避ける。雨具（防水防風アウター上下）、行動食、水分、ヘッドライト、ファーストエイドキットは必須装備だ。雷のリスクは低いが、突風によるバランス喪失と岩場でのスリップには最大の注意を払うこと。アイゼンやチェーンスパイクは不要。
夕方18時以降は風が弱まり、快晴となる見込み。気温は10℃台まで下がるため、夜間行動を予定する場合はヘッドライトと防寒着の準備を怠らないこと。
茨城県
筑波山
Mt. Tsukuba
2026年6月4日 08:05 更新
稜線に突風。奇岩怪石の岩場に注意
Gusty Winds Expected on Exposed Ridges. Exercise Caution on Wet Rocky Sections.
現在の気象状況 — Current Conditions
▲ 山頂エリア (Summit)
気温 Temp
+13.9°C
風速 Wind
2.8m/s
NNE
天候 Weather
⛅ 薄曇り
体感 Feels Like
+12°C
▼ 登山口・山麓エリア (Base)
気温 Temp
+17.9°C
風速 Wind
2.9m/s
NNE
天候 Weather
🌤️ ほぼ晴れ
標高 Altitude
269m
山頂の3時間予報 — Summit Forecast
09:00
+14°C
2.7m/s
NNE
💧 0mm
(0%)
12:00
+15°C
2.7m/s
NNE
💧 0mm
(0%)
15:00
+15°C
2.4m/s
NNE
💧 0mm
(0%)
18:00
+15°C
1.1m/s
NE
💧 0mm
(0%)
21:00
+11°C
1.2m/s
ESE
💧 0mm
(0%)
00:00
+11°C
1m/s
NNE
💧 0mm
(0%)
03:00
+9°C
1.3m/s
NNE
💧 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
Mount Tsukuba summit currently experiences light cloud cover with a temperature of 13.9℃, feeling like 12℃. Throughout the day, conditions will shift from light cloud to mostly clear skies, with the temperature peaking at 15.4℃. A temperature difference of approximately 4℃ exists between the summit and the base, necessitating preparation for varying conditions across elevations.
Ground conditions are generally dry. However, with 71% humidity, there's a possibility that some of the rocky sections, especially in shaded areas or near springs, may be wet. Extreme caution is advised for potential slips on the rocky terrain of the Miyukigahara Course and Shirakumobashi Course, leading to the twin peaks of Mt. Nantai and Mt. Nyotai, where numerous unique rock formations are present.
Winds will be predominantly southerly at around 2 meters per second throughout the day, but gusts are forecast to reach between 13 and 15 meters per second. These strong gusts pose a risk of losing balance, particularly on exposed ridges and prominent rock formations offering expansive views. Always maintain awareness of your footing and surroundings. During strong gusts, it is crucial to assess whether it is safer to pause your ascent. The apparent temperature will range from 13-15℃ in sheltered areas, dropping to 10-13℃ during gusts. Essential layering includes a wicking base layer, a light fleece or long-sleeved shirt as a mid-layer, and a windproof jacket as an outer layer. Carry an additional fleece for stops or windy sections to mitigate hypothermia risk. Full rain gear (waterproof and windproof top and bottom), trail food, water, a headlamp, and a first-aid kit are mandatory. The risk of lightning is low, but be highly vigilant against losing balance due to strong gusts and slipping on wet rocks. Crampons or microspikes are not required.
After 6 PM, winds are expected to subside, and the skies will clear. Temperatures will drop to around 10℃, so those planning night activities must be prepared with a headlamp and adequate warm clothing.
Ground conditions are generally dry. However, with 71% humidity, there's a possibility that some of the rocky sections, especially in shaded areas or near springs, may be wet. Extreme caution is advised for potential slips on the rocky terrain of the Miyukigahara Course and Shirakumobashi Course, leading to the twin peaks of Mt. Nantai and Mt. Nyotai, where numerous unique rock formations are present.
Winds will be predominantly southerly at around 2 meters per second throughout the day, but gusts are forecast to reach between 13 and 15 meters per second. These strong gusts pose a risk of losing balance, particularly on exposed ridges and prominent rock formations offering expansive views. Always maintain awareness of your footing and surroundings. During strong gusts, it is crucial to assess whether it is safer to pause your ascent. The apparent temperature will range from 13-15℃ in sheltered areas, dropping to 10-13℃ during gusts. Essential layering includes a wicking base layer, a light fleece or long-sleeved shirt as a mid-layer, and a windproof jacket as an outer layer. Carry an additional fleece for stops or windy sections to mitigate hypothermia risk. Full rain gear (waterproof and windproof top and bottom), trail food, water, a headlamp, and a first-aid kit are mandatory. The risk of lightning is low, but be highly vigilant against losing balance due to strong gusts and slipping on wet rocks. Crampons or microspikes are not required.
After 6 PM, winds are expected to subside, and the skies will clear. Temperatures will drop to around 10℃, so those planning night activities must be prepared with a headlamp and adequate warm clothing.
山岳ガイド — Mountain Guide
概要 Overview
茨城県つくば市の標高877mの双耳峰（男体山・女体山）。日本百名山の中で最も標高が低く、関東平野から特徴的な姿を望むことができる。古来より「西の富士、東の筑波」と並び称されてきた信仰の山。
特徴・地形 Features
男体山と女体山の二峰からなり、両峰の間には御幸ヶ原。奇岩怪石（弁慶七戻り、ガマ石など）が点在する独特の地形。ケーブルカー・ロープウェイで気軽にアクセス可能。
ベストシーズン Best Season
通年登山可能。紅葉は11月中旬。冬季は山頂部凍結に注意。アジサイは6月、桜は4月初旬。
主要ルート Main Routes
御幸ヶ原コース（最一般的）、白雲橋コース、おたつ石コース、ケーブルカー・ロープウェイ。
注意点・危険箇所 Cautions
標高は低いが冬季の凍結・突風に注意。岩場区間でのスリップ事故が散発。混雑期の登山道渋滞。
アクセス Access
つくばエクスプレスつくば駅からシャトルバス。常磐道土浦北ICから車。
※ 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。