Mount Washiba Mountain
Nagano alpine peak popular among mountaineers
Part of Nagano's high ranges, Washiba appeals to alpine hikers for long ridgeline walks, summer wildflower meadows and lingering snowfields.
Mount Washiba at a Glance#
Address: Mount Washiba (Washiba-dake), Hida Mountains (Northern Alps), Nagano Prefecture, Japan
Admission: Free
How to Get to Mount Washiba#
Access to Mount Washiba is typically from trailheads in Nagano Prefecture reached by regional buses and local roads. Common approaches start from the Kamikochi area or valley trailheads; plan connections through local transport timetables.
Because routes can be remote, many visitors use established mountain huts and seasonal services during the summer months.
Tips for Visiting Mount Washiba#
- Ascents into the Northern Alps require alpine experience and up-to-date weather forecasts.
- The Ushiro-Tateyama-Shirouma massif is nearby; coordinate routes with local mountain huts (yado) if planning multi-day trips.
- Warmer layers and crampons are needed outside of summer; storms are frequent in shoulder seasons.
Best Time to Visit Mount Washiba#
July-August is the primary season for non-technical access and for alpine flowers; shoulder seasons require caution.
Weather & Climate near Mount Washiba#
Mount Washiba's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -18°C to 17°C. Heavy rainfall (2212 mm/year), wettest in August.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -19° - -9° | -25° | 73 mm | overcast | 97% | 8.6 m/s | 0.3 low | 9.8h |
| February | Poor | -18° - -9° | -24° | 84 mm | overcast | 94% | 8.7 m/s | 0.5 low | 10.7h |
| March | Poor | -15° - -5° | -19° | 126 mm | overcast | 89% | 8.2 m/s | 0.8 moderate | 11.8h |
| April | Poor | -8° - 2° | -10° | 174 mm | partly cloudy | 81% | 8.1 m/s | 1.2 high | 13.0h |
| May | Poor | -3° - 7° | -3° | 197 mm | overcast | 78% | 7.3 m/s | 1.5 high | 14.0h |
| June | Poor | 2° - 12° | 3° | 276 mm | overcast | 82% | 6.1 m/s | 1.5 very high | 14.5h |
| July | Acceptable | 7° - 15° | 11° | 309 mm | overcast | 86% | 5.3 m/s | 1.6 very high | 14.2h |
| August | Acceptable | 8° - 17° | 12° | 336 mm | overcast | 86% | 5.5 m/s | 1.7 very high | 13.4h |
| September | Poor | 4° - 13° | 5° | 295 mm | overcast | 87% | 6.3 m/s | 1.2 high | 12.3h |
| October | Poor | -3° - 7° | -3° | 158 mm | partly cloudy | 88% | 6.1 m/s | 0.8 moderate | 11.1h |
| November | Poor | -9° - 1° | -12° | 112 mm | partly cloudy | 91% | 7.9 m/s | 0.4 low | 10.1h |
| December | Poor | -15° - -5° | -20° | 72 mm | overcast | 95% | 8.5 m/s | 0.2 low | 9.6h |
