Mount Jōnen
常念岳
Matsumoto, Nagano / Azumino, Nagano · Elevation 2,857 m
Mount Jōnen is a 2,857 m peak on the boundary between Azumino and Matsumoto in Nagano Prefecture, the principal summit of the Jōnen range in the southern Hida Mountains. Within Chūbu-Sangaku National Park, it is listed in Fukada Kyūya's Hyakumeizan and the Hyakkōzan. Its symmetrical pyramidal silhouette dominates the Azumino basin, and the Jōnen-bō, a snow-pattern figure that emerges below the summit in early May, has long served local farmers as a sign for the rice-planting season. The two standard routes are the Ichinosawa trail, which climbs to the Jōnen-Goshi (Jōnen-Goya hut) before crossing to the summit, and the steeper Mitsumata trail through dense forest via Mae-Jōnen, both rewarding climbers with panoramic views across the Yari-Hotaka range.
Mount Jōnen at a glance
- Weather: The most settled day in the next 7 days is Wed, November 4: clear, gusts up to 7 m/s.
- Route: The shortest is Mitsumata Circuit: Mount Mae-Jonen, Mount Jonen, Mount Cho-yari, and Mount Cho: about 13 h 27 min, 19.7 km, about 2,440 m of climbing.
Mount Jōnen weather (hourly, 14 days)
Sunrise today 06:13, sunset 16:52
| 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 | 2° | -2° | -5° | -6° | -6° | -6° | -5° | -5° | -4° | 0° | 3° | 4° | 4° | 0° | 0° | -1° | 0° | 0° | 2° | 4° | 6° | 2° | 2° | 1° | 1° | 1° | 3° | 5° | 4° | -1° | -3° | -4° | -5° | -6° | -5° | -4° | -4° | -8° | -9° | -9° | -9° | -9° | -2° | 1° | -1° | -5° | -5° | -5° | -5° | -5° | -2° | -1° | -9° | -10° | -2° | -1° | -4° | -9° | -6° | -4° | -9° | -10° | -3° | -1° | -9° | -5° | -4° | -3° | -8° | -7° | -2° | 2° | -6° | -6° | 2° | 2° | 0° | 0° | 2° | 2° | -4° | -7° | -4° | -1° |
| Precipitation | mm | 0.2 | 2.4 | 10 | 9 | 7 | 1.1 | 0.1 | 1.0 | 1.4 | 0.3 | 0.2 | 0.3 | 0.6 | 0.7 | 0.6 | 0.3 | 0.5 | 0.7 | 0.1 | 1.4 | 4.0 | 2.3 | 0.2 | 0.4 | 0.2 | 0.6 | 9 | 11 | 1.4 | 0.5 | 0.9 | 0.5 | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| New snow | cm | <.1 | <.1 | <.1 | <.1 | 0.2 | 0.5 | 0.7 | 0.6 | 0.3 | <.1 | <.1 | <.1 | <.1 | <.1 | 0.4 | 0.4 | <.1 | <.1 | <.1 | 0.7 | 2.9 | 2.2 | <.1 | 0.1 | 0.1 | <.1 | <.1 | <.1 | <.1 | <.1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | <1 | <1 | <1 | 1 | 1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | 1 | 3 | 5 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 | <1 |
| Wind | m/s | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 2 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 3 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 2 | 2 | 1 | 3 | 1 | 4 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 0 | 1 | 1 |
| Wind gusts | m/s | 6 | 5 | 6 | 7 | 7 | 6 | 5 | 4 | 4 | 6 | 7 | 7 | 7 | 6 | 6 | 6 | 5 | 5 | 8 | 10 | 9 | 7 | 7 | 8 | 8 | 8 | 9 | 11 | 11 | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 13 | 12 | 11 | 10 | 9 | 6 | 6 | 7 | 7 | 8 | 9 | 9 | 9 | 8 | 6 | 7 | 7 | 14 | 12 | 20 | 21 | 12 | 7 | 5 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 5 | 5 | 6 | 6 | 7 | 8 | 10 | 11 | 12 | 11 | 11 | 9 | 5 | 5 | 7 |
| Wind dir. | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | |
Mount Jōnen hiking routes
Hiking times are estimates calculated from the terrain.
Huts, campsites and lodging near Mount Jōnen
Mountain huts
- 常念小屋 2026: open April 25–November 3 · reservation required · sleeps 180
- Yarisawa Lodge 2026: open April 27–November 3 · reservation required · sleeps 100
- Chogatake Hut 2026: open April 25–November 3 · reservation required · sleeps 150
- Yokoosanso 2026: open April 27–November 3 · reservation required · sleeps 150
- Hutte Nishidake 2026: open July 10–October 11 · reservation required · sleeps 38
Campsites
- 蝶ヶ岳ヒュッテ テントサイト
- Yokoo Campground
- Babadaira Camp Site
Lists that include Mount Jōnen
100 Famous Japanese Mountains · Japan 200 Famous Mountains · Japan's 300 Famous Mountains · Japan's 100 Highest Mountains · Koshinetsu 100 Famous Mountains · Tokai 100 Mountains · Shinshu 100 Famous Mountains · Shinshu Mountain Cards · Elevations of 1003 Mountains of Japan · 1000 Mountains of Japan
Mount Jōnen facts
- Elevation
- 2,857 m
- Location
- Matsumoto, Nagano / Azumino, Nagano
36.325533, 137.727597 - National Park
- 中部山岳国立公園
- Website
- www.mt-jonen.com
- Trail Map
- azumino-e-tabi.net
- Access Information
- azumino-e-tabi.net
- Wikipedia
- ja.wikipedia.org