Mount Tomuraushi (Daisetsuzan)

Mountain Alpine peak in Daisetsuzan National Park, rugged terrain

Inside Daisetsuzan National Park, Mount Tomuraushi attracts multi-day hikers to alpine terrain, tundra vegetation and seasonal flower displays; routes demand navigation and snow skills outside summer, with highland vistas of Hokkaido.

Main image
Mount Tomurashi from Mount Ishikari.jpg
Mount Tomuraushi from Mount Nipesotsu.jpg
Mount Tomuraushi Rock Garden.jpg
Tomuraushi and Kitanuma 2006-8-26.jpg
Tomurausi.jpg
オプタテシケよりトムラウシを臨む - panoramio.jpg
オプタテシケよりトムラウシ方面を望む - panoramio.jpg
コスマヌプリより黄金ヶ原トムラウシ方面を望む - panoramio.jpg

Mount Tomuraushi is a mountain in central Hokkaido, Japan, located within Daisetsuzan National Park. It is one of several prominent peaks in the Daisetsuzan range and is known for alpine terrain and scenic hiking routes.

Hikers follow marked routes that cross alpine ridges and scree slopes, with summits offering wide views across the national park. The area is used for summer hiking and alpine trekking; snow and glacial remnants affect conditions outside the summer months.

The mountain is part of the volcanic and uplifted geology of central Hokkaido and sits within the protected area of the national park, which preserves alpine ecosystems. Trail management and mountain safety information are provided by park authorities for seasonal conditions.

Geographically it lies in central Hokkaido inside Daisetsuzan National Park, within the island’s mountainous interior. The nearest larger towns serve as staging points for park access and trailheads.

  • Alpine environment: Located inside Daisetsuzan National Park, the mountain is part of a large alpine area noted for tundra vegetation and seasonal wildflowers.
Mount Tomuraushi (Daisetsuzan)
42.8008, 142.7739

Tips for Visiting Mount Tomuraushi (Daisetsuzan) #

  • Plan climbs in mid‑summer (July-August) when the access trails are most stable and the Tomuraushi Hut (goâ) is open - start pre‑dawn to beat afternoon storms and give yourself daylight for the long approach.
  • Use the Tomuraushi hut as your staging point and book it in advance during peak season; the route passes extensive boggy sections and indistinct tracks that are easier to manage with a planned overnight stop.
  • Treat Daisetsuzan as true alpine country: make noise and be bear‑aware (brown bears occur on Hokkaido), carry basic bear‑avoidance items, and expect rapidly changing weather that many day visitors underestimate.

Best Time to Visit Mount Tomuraushi (Daisetsuzan) #

The short alpine summer (July-September) is the best window for hiking Mount Tomuraushi when snow is at its minimum.

Alpine summer / Best time to hike
Jul-Sep · 0-15°C
Snow-free to patchy conditions in many areas, the main season for hiking and alpine access.
Shoulder season / Early autumn
Oct · -5-10°C
Cooler, possibility of early snow and rapidly changing conditions - good for experienced hikers watching forecasts.
Winter and spring
Nov-Jun · -20-0°C
Long, cold snow season with deep snowpack; suitable only for experienced winter mountaineering and ski tours.

Weather & Climate near Mount Tomuraushi (Daisetsuzan) #

Climate

Mount Tomuraushi (Daisetsuzan)'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 -17°C to 19°C. Abundant rainfall (1336 mm/year), wettest in September.

Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
33°
Warmest Month
-27°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -8°C and lows of -17°C. Moderate rainfall (67 mm) and mostly overcast skies.

31 Poor

Comfort

-13°
Feels Like Freezing
-13°C
Temperature
-17° -8°
96%
Humidity
Very Humid

Weather

67 mm
Rainfall
3.9 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.3h daylight

February

February is freezing with highs of -7°C and lows of -17°C. Moderate rainfall (56 mm) and mostly overcast skies.

33 Poor

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-17° -7°
95%
Humidity
Very Humid

Weather

56 mm
Rainfall
3.9 m/s
Wind
Light Breeze
0.3
UV Index
Low
10.4h daylight

March

March is freezing with highs of -4°C and lows of -13°C. Regular rainfall (86 mm) and mostly overcast skies.

29 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-13° -4°
92%
Humidity
Very Humid

Weather

86 mm
Rainfall
4.2 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
11.8h daylight

April

April is freezing with highs of 3°C and lows of -5°C. Regular rainfall (94 mm) and mostly overcast skies.

42 Poor

Comfort

-1°
Feels Like Freezing
-1°C
Temperature
-5°
85%
Humidity
Very Humid

Weather

94 mm
Rainfall
4.5 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
13.2h daylight

May

May is cold with highs of 9°C and lows of 1°C. Significant rainfall (112 mm) and mostly overcast skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
82%
Humidity
Very Humid

Weather

112 mm
Rainfall
4.0 m/s
Wind
Light Breeze
1.2
UV Index
High
14.4h daylight

June

June is cold with highs of 14°C and lows of 6°C. Significant rainfall (107 mm) and mostly overcast skies.

52 Acceptable

Comfort

10°
Feels Like Cold
10°C
Temperature
14°
84%
Humidity
Very Humid

Weather

107 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.4
UV Index
High
15.1h daylight

July

July is cool with highs of 18°C and lows of 11°C. Significant rainfall (140 mm) and mostly overcast skies.

58 Acceptable

Comfort

14°
Feels Like Cool
14°C
Temperature
11° 18°
87%
Humidity
Very Humid

Weather

140 mm
Rainfall
3.0 m/s
Wind
Light Breeze
1.4
UV Index
High
14.8h daylight

August

August is cool with highs of 19°C and lows of 12°C. Significant rainfall (175 mm) and mostly overcast skies.

58 Acceptable

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 19°
87%
Humidity
Very Humid

Weather

175 mm
Rainfall
3.1 m/s
Wind
Light Breeze
1.3
UV Index
High
13.7h daylight

September

September is cool with highs of 14°C and lows of 7°C. The wettest month with heavy rain (178 mm) and mostly overcast skies.

48 Poor

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
87%
Humidity
Very Humid

Weather

178 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.0
UV Index
High
12.3h daylight

October

October is cold with highs of 9°C and lows of 0°C. Significant rainfall (131 mm) and partly cloudy skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
87%
Humidity
Very Humid

Weather

131 mm
Rainfall
3.7 m/s
Wind
Light Breeze
0.6
UV Index
Moderate
10.9h daylight

November

November is freezing with highs of 2°C and lows of -6°C. Significant rainfall (113 mm) and mostly overcast skies.

31 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-6°
91%
Humidity
Very Humid

Weather

113 mm
Rainfall
4.1 m/s
Wind
Light Breeze
0.2
UV Index
Low
9.6h daylight

December

December is freezing with highs of -4°C and lows of -12°C. Moderate rainfall (77 mm) and mostly overcast skies.

29 Poor

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-12° -4°
95%
Humidity
Very Humid

Weather

77 mm
Rainfall
3.9 m/s
Wind
Light Breeze
0.1
UV Index
Low
9.0h daylight

Nearby Attractions to Mount Tomuraushi (Daisetsuzan)