Mount Mizugaki

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Mount Mizugaki

Mountain

Mount Mizugaki is a 2230 m granite mountain in Yamanashi Prefecture, Japan, valued for its dramatic rock formations and panoramic summit views. International visitors come for hiking, bouldering and alpine scenery, especially in spring and autumn.

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Mount Mizugaki essentials

Address: Hokuto, Yamanashi Prefecture, Japan

Mount Mizugaki sits within Chichibu Tama Kai National Park in Chubu’s Yamanashi Prefecture and is part of the Okuchichibu Mountains; it reaches an altitude of about 2230 m. The mountain is composed mainly of exposed granite and is notable for oddly shaped boulders, pinnacles and large rock faces that give it a rugged, sculpted appearance.

Historically it is listed among the 100 Famous Japanese Mountains and stands opposite Mount Kinpu across a valley. Trails to the summit are well used and in generally good condition, and the summit rewards hikers with wide views over surrounding peaks. The mountain is popular for both hiking and rock climbing - you will see day-hikers, multi-day walkers using nearby huts, and climbers bouldering or on ropes.

Two small mountain huts serve the area as staging points for walks and climbs. Vegetation contrasts with neighboring forested ranges: alpine flowers and fresh green foliage in late spring, and vivid autumn colors draw many visitors in the fall.

  • Summit panorama: Wide views from the top span neighboring peaks and valleys, with particularly clear vistas on stable-weather days.
  • Granite formations: Strangely shaped boulders and rock towers around the ridges make for dramatic scenery and easy scrambling.
  • Rock climbing and bouldering: Numerous bolted routes and natural boulders attract both rope climbers and boulderers of varying skill levels.
  • Alpine flora: Summer and late-spring bring wildflowers and alpine plants around the higher trails and meadows.
  • Mizugaki Sanso and Fujimidaira Goya: Mountain huts near the trails offer places to rest, shelter and start early summit attempts.
Things to Do
When to Go

Best Time to Visit Mount Mizugaki#

The clearest and most popular times to visit are the late-spring fresh-green period and autumn leaf season; summer can be wet and winter is cold with snow and ice.

Late spring - early summer (best)
May - June · 2°C - 16°C (36°F - 61°F)
Trails are green and alpine flowers appear; conditions are often comfortable for hiking before the main rainy season begins.
Summer (caution)
July - September · 8°C - 20°C (46°F - 68°F)
Warm months can include the rainy season and frequent afternoon storms, making rock surfaces slippery and climbing risky.
Autumn (best)
October - November · -3°C - 11°C (27°F - 52°F)
Stable weather and vivid autumn foliage make this a very popular time for summit views and photography.

Weather & Climate near Mount Mizugaki#

Climate

Mount Mizugaki's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -12°C to 20°C. Abundant rainfall (1938 mm/year), wettest in August.

Air Quality: AQI 49 Good
Best Time to Visit
AugustSeptemberJune
Temperature & Rainfall
Temperature Range
34°
Warmest Month
-15°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January Poor -13° - -2° -15° 39 mm partly cloudy 83% 5.6 m/s 0.4 low 9.9h
February Poor -12° - -2° -15° 60 mm partly cloudy 82% 6.2 m/s 0.6 moderate 10.8h
March Poor -9° - 1° -10° 105 mm partly cloudy 78% 5.4 m/s 0.9 moderate 11.8h
April Poor -3° - 8° -2° 150 mm partly cloudy 76% 5.2 m/s 1.2 high 13.0h
May Poor 2° - 13° 4° 174 mm overcast 76% 5.0 m/s 1.5 high 13.9h
June Acceptable 7° - 16° 11° 255 mm overcast 81% 4.4 m/s 1.5 high 14.4h
July Acceptable 11° - 19° 15° 255 mm overcast 83% 4.1 m/s 1.6 very high 14.1h
August Acceptable 12° - 20° 16° 322 mm overcast 83% 4.5 m/s 1.7 very high 13.3h
September Acceptable 9° - 17° 13° 287 mm overcast 85% 4.4 m/s 1.3 high 12.3h
October Acceptable 2° - 11° 4° 167 mm partly cloudy 85% 4.2 m/s 0.9 moderate 11.2h
November Acceptable -3° - 7° -3° 86 mm partly cloudy 84% 4.8 m/s 0.5 moderate 10.2h
December Poor -9° - 1° -10° 38 mm some cloud 83% 5.1 m/s 0.4 low 9.7h
Getting There & Around

How to Get to Mount Mizugaki#

The mountain lies near the city of Hokuto in Yamanashi Prefecture; the nearest regional center is Kofu. The usual journey for international visitors begins from greater Tokyo by train or car, or via Tokyo-area airports, and then continues into Yamanashi Prefecture.

For the final stretch expect regional trains and local buses or taxis to the trailhead towns and hut areas; many approaches start with a walk from the nearest village or hut. Check local transport links and seasonal bus timetables before you travel, and allow extra time for mountain roads and limited services.

Tips for Visiting Mount Mizugaki#

  • Granite slabs get very slippery when wet - avoid exposed rock in rainy conditions and wear good-traction footwear.
  • Mobile reception can be patchy; carry a map, route notes and tell someone your plans before you go.
  • If you plan to climb or boulder, bring appropriate protection and check route information; many climbers use the established bolted lines.
  • Huts provide basic shelter but may have limited services and seasonal availability - check locally and consider booking in advance where possible.
  • Weather changes quickly at altitude; pack warm layers, waterproofs and start early to avoid afternoon storms.