Shiomi-dake Mountain
Prominent Shizuoka mountain within Southern Alps
A mountain in central Honshu's Akaishi (Southern Alps), frequented by multi‑day hikers using mountain huts to traverse ridgelines and reach alpine viewpoints.
Shiomi-dake at a Glance#
Tips for Visiting Shiomi-dake#
- Plan your visit for mid-summer to early autumn (typically July-September) when alpine routes are generally free of persistent snow and weather windows are more reliable for high-elevation hiking.
- Use the established Minami Alps trailheads and reserve any mountain huts well in advance-Shiomi-dake is in a remote alpine area with limited accommodation, so bookings and a clear itinerary are essential.
- Start very early for summit approaches and consider an overnight at a hut to catch sunrise views of the surrounding peaks (including clear views toward Mount Fuji on good days), which many day-trippers miss.
Best Time to Visit Shiomi-dake#
Best in midsummer (July-September) when high‑elevation trails are most likely to be snow‑free and accessible.
Summer (best for climbing)
Jul-Sep · ~5-15°C (summit); warmer in valleys
Trails and high‑alpine routes are generally snow‑free; the safest season for mountain hiking and climbing.
Shoulder seasons
May-Jun, Oct · Variable; near freezing at higher elevations
Conditions are changeable with possible late/early snow - only for experienced hikers prepared for mixed conditions.
Winter
Dec-Feb · Below freezing at higher elevations
Cold with significant snow and avalanche risk; not recommended for casual visitors.
Weather & Climate near Shiomi-dake#
Climate
Shiomi-dake's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -16°C to 17°C. Heavy rainfall (2288 mm/year), wettest in August.
Air Quality:
AQI 46
Good
Best Time to Visit
AugustJulyNovember
Temperature & Rainfall
Temperature Range
29°
Warmest Month
-20°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -16° - -6° | -21° | 53 mm | partly cloudy | 88% | 8.1 m/s | 0.4 low | 9.9h |
| February | Poor | -16° - -6° | -20° | 76 mm | partly cloudy | 86% | 8.2 m/s | 0.6 moderate | 10.8h |
| March | Poor | -13° - -2° | -16° | 132 mm | partly cloudy | 83% | 7.4 m/s | 0.9 moderate | 11.8h |
| April | Poor | -6° - 4° | -7° | 189 mm | partly cloudy | 80% | 7.5 m/s | 1.2 high | 13.0h |
| May | Poor | -1° - 9° | -1° | 215 mm | overcast | 80% | 7.1 m/s | 1.5 high | 13.9h |
| June | Poor | 3° - 13° | 5° | 298 mm | overcast | 84% | 6.0 m/s | 1.5 high | 14.4h |
| July | Acceptable | 8° - 16° | 12° | 306 mm | overcast | 87% | 5.2 m/s | 1.6 very high | 14.1h |
| August | Acceptable | 9° - 17° | 13° | 367 mm | overcast | 86% | 5.8 m/s | 1.7 very high | 13.3h |
| September | Poor | 5° - 13° | 7° | 319 mm | overcast | 87% | 6.0 m/s | 1.3 high | 12.3h |
| October | Poor | -1° - 8° | -1° | 178 mm | partly cloudy | 86% | 5.3 m/s | 0.9 moderate | 11.2h |
| November | Poor | -6° - 3° | -8° | 103 mm | partly cloudy | 87% | 6.7 m/s | 0.5 moderate | 10.2h |
| December | Poor | -12° - -2° | -16° | 52 mm | some cloud | 88% | 7.5 m/s | 0.4 low | 9.7h |
