Mount Suisho Mountain
Alpine peak in Toyama with sharp granite ridges
In Toyama Prefecture, Mount Suisho sits in the Northern Japan Alps; alpinists seek steep routes and high‑country ridgelines during the summer season.
Mount Suisho at a Glance#
Address: Mount Suisho area, Toyama Prefecture, Japan (part of the Hida/Southern Alps region)
Hours: Open 24 hours (seasonal access)
Admission: Free (no formal fees). Mountain huts may charge for lodging on some routes.
How to Get to Mount Suisho#
Access via the Tateyama-Kurobe area; approach routes typically start from valley trailheads reachable by regional bus services from Toyama or by private car. Local alpine clubs and guide services can arrange hut reservations and logistic support.
Tips for Visiting Mount Suisho#
- Reserve overnight hut beds in advance during the popular July-September climbing season.
- Expect steep and sustained climbing-experience with alpine routes is essential.
- Start early for summit bids to avoid afternoon storms; bring layered clothing for rapidly changing conditions.
Best Time to Visit Mount Suisho#
Midsummer offers the most reliable weather and access; autumn provides clearer vistas but colder conditions.
Weather & Climate near Mount Suisho#
Mount Suisho's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -19°C to 17°C. Heavy rainfall (2215 mm/year), wettest in August.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -19° - -10° | -25° | 71 mm | overcast | 97% | 8.8 m/s | 0.3 low | 9.8h |
| February | Poor | -19° - -9° | -25° | 83 mm | overcast | 94% | 8.9 m/s | 0.5 low | 10.7h |
| March | Poor | -15° - -5° | -19° | 125 mm | overcast | 89% | 7.6 m/s | 0.8 moderate | 11.8h |
| April | Poor | -8° - 2° | -10° | 173 mm | partly cloudy | 81% | 8.0 m/s | 1.2 high | 13.0h |
| May | Poor | -3° - 7° | -3° | 197 mm | overcast | 78% | 7.4 m/s | 1.5 high | 14.0h |
| June | Poor | 2° - 12° | 3° | 276 mm | overcast | 82% | 6.3 m/s | 1.5 very high | 14.5h |
| July | Acceptable | 7° - 15° | 11° | 313 mm | overcast | 86% | 5.6 m/s | 1.6 very high | 14.2h |
| August | Acceptable | 8° - 17° | 12° | 340 mm | overcast | 86% | 5.5 m/s | 1.7 very high | 13.4h |
| September | Poor | 4° - 13° | 5° | 297 mm | overcast | 87% | 6.2 m/s | 1.2 high | 12.3h |
| October | Poor | -3° - 7° | -3° | 158 mm | partly cloudy | 88% | 6.2 m/s | 0.8 moderate | 11.1h |
| November | Poor | -9° - 1° | -12° | 111 mm | partly cloudy | 91% | 8.3 m/s | 0.4 low | 10.1h |
| December | Poor | -15° - -6° | -20° | 71 mm | overcast | 95% | 8.4 m/s | 0.2 low | 9.6h |
