Onigaiwa-no-Atama
鬼ヶ岩ノ頭
Yamakita, Kanagawa / Sagamihara, Kanagawa · Elevation 1,608 m
A 1,608 m summit straddling the border of Sagamihara and Yamakita in Kanagawa, inside Tanzawa-Ōyama Quasi-National Park. It sits roughly 200 m east of Mount Hiru — Kanagawa's high point — on the main spine ridge running between Hirugatake, Fudō-no-atama and Mount Tanzawa. The peak takes its name from the jagged "demon-horn" rocks just below the summit, and is a noted vantage point over the main Tanzawa ridges.
Onigaiwa-no-Atama at a glance
- Weather: The most settled day in the next 7 days is Fri, November 6: clear, gusts up to 8 m/s.
- Route: The shortest is Tanzawa Main Ridge Traverse from Nishi-Tanzawa to Okura: about 14 h 30 min, 22.7 km, about 2,240 m of climbing.
Onigaiwa-no-Atama weather (hourly, 14 days)
Sunrise today 06:06, sunset 16:48
| Tue, 11/3 | Wed, 11/4 | Thu, 11/5 | Fri, 11/6 | Sat, 11/7 | Sun, 11/8 | Mon, 11/9 | Tue, 11/10 | Wed, 11/11 | Thu, 11/12 | Fri, 11/13 | Sat, 11/14 | Sun, 11/15 | Mon, 11/16 | Tue, 11/17 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Japan time | 15 | 17 | 19 | 21 | 23 | 1 | 3 | 5 | 7 | 9 | 11 | 13 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 0 | 3 | 6 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | 21 | 3 | 9 | 15 | |
| Temperature | °C | 9° | 8° | 7° | 7° | 6° | 6° | 5° | 5° | 4° | 6° | 6° | 6° | 5° | 4° | 4° | 4° | 5° | 5° | 8° | 13° | 12° | 9° | 7° | 5° | 6° | 5° | 12° | 15° | 14° | 9° | 8° | 8° | 7° | 4° | 8° | 9° | 7° | 5° | 3° | 3° | 2° | 1° | 6° | 8° | 7° | 4° | 3° | 4° | 3° | 2° | 3° | 5° | 3° | 1° | 3° | 5° | 2° | 2° | 5° | 8° | -1° | -3° | 4° | 5° | 3° | -1° | 7° | 7° | 0° | 0° | 2° | 4° | 2° | 0° | 7° | 9° | 7° | 7° | 12° | 13° | 4° | 2° | 2° | 3° |
| Precipitation | mm | 0.2 | 0.3 | 0.3 | 1.0 | 2.2 | 6 | 10 | 17 | 15 | 2.5 | 1.2 | 0.2 | 1.5 | 0.4 | 0.8 | 0.5 | 0.3 | 1.0 | 0.1 | 0.2 | 0.1 | 10 | 24 | 0.7 | 0.1 | 0.2 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| New snow | cm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Snow depth | cm | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Wind | m/s | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 2 | 2 | 0 | 1 | 0 | 1 | 1 | 0 | 2 | 2 | 1 | 1 | 0 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 0 | 1 | 3 | 3 | 1 | 0 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 0 | 1 | 2 | 0 | 0 | 2 | 3 | 1 | 0 | 2 | 2 | 2 | 1 | 1 | 2 |
| Wind gusts | m/s | 5 | 5 | 3 | 2 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 10 | 11 | 11 | 8 | 5 | 4 | 4 | 5 | 5 | 5 | 7 | 8 | 6 | 5 | 4 | 8 | 7 | 5 | 6 | 6 | 6 | 4 | 4 | 4 | 3 | 4 | 8 | 7 | 5 | 4 | 4 | 5 | 5 | 5 | 7 | 7 | 6 | 6 | 7 | 7 | 6 | 14 | 15 | 9 | 6 | 5 | 9 | 7 | 6 | 6 | 7 | 6 | 4 | 4 | 6 | 6 | 3 | 8 | 13 | 11 | 10 | 7 | 8 | 7 | 7 | 5 | 6 |
| Wind dir. | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ||
Onigaiwa-no-Atama hiking routes
- Tanzawa Main Ridge Traverse from Nishi-Tanzawa to Okura 22.7 km · Ascent 2,241 m 西丹沢自然教室 (Bus stop) (parking) → Okura (Bus stop), Okura Parking
- Tanzawa Main Ridge Traverse from Yakeyama Trailhead to Okura 25.5 km · Ascent 2,123 m 伏馬田入口 (Bus stop) → Okura (Bus stop), Okura Parking
Hiking times are estimates calculated from the terrain.
Huts, campsites and lodging near Onigaiwa-no-Atama
Mountain huts
- 蛭ヶ岳山荘 2026: open all year
- Miyama Sanso 2026: open all year · reservation required
- Sonbutsu Sanso 2026: open all year · reservation required
- 青ケ岳山荘 2026: open all year · reservation required · sleeps 35
- Kinomata Hut 2026: open all year · sleeps 14
Campsites
- ユーシンロッジ
- 大平キャンプ場跡地
Onigaiwa-no-Atama facts
- Elevation
- 1,608 m
- Location
- Yamakita, Kanagawa / Sagamihara, Kanagawa
35.482313, 139.146448 - Website
- www.pref.kanagawa.jp
- Trail Map
- www.police.pref.kanagawa.jp (PDF)