Mount Nikkō-Shirane Mountain
Stratovolcano in Nikkō region, popular for skiing
In Nikkō National Park Mount Nikkō-Shirane provides alpine hiking routes, snowfields and crater scenery; hikers and winter-sport visitors come for high-elevation flora and mountain panoramas.
Mount Nikkō-Shirane at a Glance#
Address: Mount Nikkō-Shirane (Nikkō-Shirane), Gunma Prefecture / Nikkō area, Japan
Tips for Visiting Mount Nikkō-Shirane#
- Plan summit attempts for the snow-free months (mid-summer to early autumn) to avoid deep snow and to see alpine flowers; winter access requires proper winter-mountain skills.
- Start very early in the day-afternoon thunderstorms are common in Japanese mountains, so an early start reduces storm risk and often gives clearer views.
- Check local trail and weather bulletins before you set out; mountain weather changes rapidly and some higher trails may be closed seasonally.
Best Time to Visit Mount Nikkō-Shirane#
Best visited in summer for safe, snow‑free hiking; autumn is excellent for foliage and winter brings heavy snow and cold.
Summer
June-September · 5-15°C (summit)
Most reliable season for hiking with milder summit conditions and open trails.
Autumn
October-November · -5-10°C
Great autumn colors at lower elevations; higher areas cool quickly and can see early snow.
Winter
December-March · -15-0°C
Snow and ice are common; the area is used for winter recreation but requires winter gear and experience.
Weather & Climate near Mount Nikkō-Shirane#
Climate
Mount Nikkō-Shirane's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -15°C to 18°C. Heavy rainfall (2107 mm/year), wettest in August.
Air Quality:
AQI 51
Moderate
Best Time to Visit
AugustJulyOctober
Temperature & Rainfall
Temperature Range
31°
Warmest Month
-15°
Coldest Month
Monthly Conditions
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | Poor | -15° - -6° | -19° | 58 mm | some cloud | 96% | 6.4 m/s | 0.3 low | 9.8h |
| February | Poor | -15° - -6° | -19° | 72 mm | partly cloudy | 94% | 6.3 m/s | 0.6 moderate | 10.7h |
| March | Poor | -12° - -3° | -15° | 109 mm | partly cloudy | 88% | 5.9 m/s | 0.8 moderate | 11.8h |
| April | Poor | -6° - 4° | -7° | 162 mm | partly cloudy | 82% | 6.8 m/s | 1.2 high | 13.0h |
| May | Poor | -1° - 10° | 1° | 180 mm | overcast | 80% | 5.8 m/s | 1.4 high | 14.0h |
| June | Poor | 5° - 13° | 6° | 249 mm | overcast | 84% | 4.9 m/s | 1.4 high | 14.5h |
| July | Acceptable | 9° - 17° | 13° | 268 mm | overcast | 86% | 4.4 m/s | 1.6 very high | 14.2h |
| August | Acceptable | 10° - 18° | 14° | 369 mm | overcast | 86% | 4.9 m/s | 1.6 very high | 13.4h |
| September | Poor | 7° - 14° | 10° | 305 mm | overcast | 87% | 4.9 m/s | 1.2 high | 12.3h |
| October | Acceptable | 0° - 9° | 1° | 173 mm | partly cloudy | 88% | 5.4 m/s | 0.8 moderate | 11.1h |
| November | Poor | -5° - 4° | -6° | 107 mm | partly cloudy | 90% | 6.0 m/s | 0.5 low | 10.1h |
| December | Poor | -11° - -2° | -14° | 55 mm | some cloud | 93% | 5.8 m/s | 0.3 low | 9.6h |