Mount Rebun

Mountain Hokkaido island peak with alpine flora and trails

On Rebun Island off Hokkaido, the mountain and its coastal trails attract walkers for cliffside panoramas and distinctive summer alpine flora.

Arisaema sachalinense (Miyabe & Kudô) J.Murata, J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 14 66 (1986) (48029859796).jpg
Arisaema sachalinense (Miyabe & Kudô) J.Murata, J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 14 66 (1986) (48029902213).jpg
Trillium camschatcense Ker Gawl., Bot. Mag. 22 t. 855 (1805) (48028125811).jpg
Trillium camschatcense Ker Gawl., Bot. Mag. 22 t. 855 (1805) (48028228522).jpg
礼文岳山頂から見る利尻山.jpg
礼文岳登山の注意.jpg
礼文岳登山口.jpg

Mount Rebun is a mountain on Rebun Island in Hokkaido Prefecture, Japan, recorded at the supplied coordinates. It is a natural geographic feature rather than a built landmark.

People who go to the island commonly engage in outdoor activities such as hiking and coastal viewing; specific trails and amenities are not detailed here. Local access and visitor services are managed at the municipal and prefectural level.

As a natural landform the mountain does not have a construction history; human use is limited to travel, recreation and local stewardship. Any traditional or cultural significance is not provided in the available data.

The peak sits on Rebun Island in Hokkaido Prefecture, Japan, at latitude 45.37254 and longitude 141.01592.

  • Coordinates: Latitude 45.37254, Longitude 141.01592.
Mount Rebun
Rebun Island, Hokkaido Prefecture, Japan (Rishiri-Rebun-Sarobetsu National Park)
45.3725, 141.0159
Always open
Free

How to Get to Mount Rebun #

Ferries to Rebun Island depart from Wakkanai (the northern tip of Hokkaido); the crossing takes about 1.5-2 hours. From the island ferry terminal buses connect to the main trailheads, or taxis can be hired in peak season.

Most visitors base themselves in Rebun Village or Kafuka before hiking; during summer check ferry timetables in advance (services are reduced outside June-August).

Tips for Visiting Mount Rebun #

  • Catch the ferry to Rebun from Wakkanai and then take the island bus to the trailhead - schedules can be sparse outside summer.
  • Climb early: the summit offers wide views but afternoon fog is common; plan for sudden weather changes.
  • Bring warm layers even in summer; coastal winds are chilly and exposure high on the summit plateau.
  • Respect fragile alpine plants - Rebun is famed for its endemic alpine flora found in a small area of the island.

Best Time to Visit Mount Rebun #

Best time is summer (June-August) when ferries run regularly and alpine paths are clear.

Summer
June-August · 8-20°C
The only comfortable season for the full island trek; wildflowers and clear sea vistas are at their best.
Late spring/early autumn
May & September · 4-15°C
Quieter and cooler; ferry services become less frequent and weather turns more changeable.
Winter
October-April · -10-5°C
Harsh, snowy conditions; access is generally impractical unless experienced in cold alpine travel.

Weather & Climate near Mount Rebun #

Climate

Mount Rebun'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 -10°C to 20°C. Abundant rainfall (1149 mm/year), wettest in September.

Best Time to Visit
SeptemberJulyAugust
Temperature & Rainfall
Temperature Range
25°
Warmest Month
-12°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -4°C and lows of -10°C. Regular rainfall (92 mm), mostly overcast skies, and breezy conditions.

29 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-10° -4°
82%
Humidity
Very Humid

Weather

92 mm
Rainfall
6.5 m/s
Wind
Breezy
0.1
UV Index
Low
9.0h daylight

February

February is freezing with highs of -4°C and lows of -9°C. Moderate rainfall (65 mm), mostly overcast skies, and breezy conditions.

31 Poor

Comfort

-7°
Feels Like Freezing
-7°C
Temperature
-9° -4°
80%
Humidity
Very Humid

Weather

65 mm
Rainfall
6.0 m/s
Wind
Breezy
0.2
UV Index
Low
10.2h daylight

March

March is freezing with highs of -1°C and lows of -6°C. Moderate rainfall (61 mm) and mostly overcast skies.

35 Poor

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-6° -1°
77%
Humidity
Very Humid

Weather

61 mm
Rainfall
5.6 m/s
Wind
Light Breeze
0.4
UV Index
Low
11.8h daylight

April

April is cold with highs of 5°C and lows of -1°C. Moderate rainfall (61 mm) and mostly overcast skies.

44 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
82%
Humidity
Very Humid

Weather

61 mm
Rainfall
5.6 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
13.4h daylight

May

May is cold with highs of 10°C and lows of 3°C. Moderate rainfall (74 mm) and mostly overcast skies.

54 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
89%
Humidity
Very Humid

Weather

74 mm
Rainfall
5.4 m/s
Wind
Light Breeze
1.1
UV Index
High
14.7h daylight

June

June is cool with highs of 14°C and lows of 8°C. Moderate rainfall (75 mm) and mostly overcast skies.

52 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
14°
91%
Humidity
Very Humid

Weather

75 mm
Rainfall
4.6 m/s
Wind
Light Breeze
1.3
UV Index
High
15.4h daylight

July

July is cool with highs of 18°C and lows of 13°C. Significant rainfall (103 mm) and mostly overcast skies.

60 Good

Comfort

16°
Feels Like Cool
16°C
Temperature
13° 18°
91%
Humidity
Very Humid

Weather

103 mm
Rainfall
4.3 m/s
Wind
Light Breeze
1.4
UV Index
High
15.1h daylight

August

August is cool with highs of 20°C and lows of 15°C. Significant rainfall (129 mm) and mostly overcast skies.

60 Good

Comfort

18°
Feels Like Cool
18°C
Temperature
15° 20°
87%
Humidity
Very Humid

Weather

129 mm
Rainfall
4.4 m/s
Wind
Light Breeze
1.3
UV Index
High
13.9h daylight

September

September is cool with highs of 17°C and lows of 12°C. The wettest month with heavy rain (134 mm) and partly cloudy skies.

62 Good

Comfort

15°
Feels Like Cool
15°C
Temperature
12° 17°
77%
Humidity
Very Humid

Weather

134 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.9
UV Index
Moderate
12.4h daylight

October

October is cold with highs of 12°C and lows of 6°C. Significant rainfall (127 mm) and partly cloudy skies.

52 Acceptable

Comfort

Feels Like Cold
C
Temperature
12°
73%
Humidity
Very Humid

Weather

127 mm
Rainfall
5.7 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.8h daylight

November

November is cold with highs of 4°C and lows of -1°C. Significant rainfall (121 mm), mostly overcast skies, and breezy conditions.

36 Poor

Comfort

Feels Like Cold
C
Temperature
-1°
77%
Humidity
Very Humid

Weather

121 mm
Rainfall
6.2 m/s
Wind
Breezy
0.1
UV Index
Low
9.4h daylight

December

December is freezing with highs of -1°C and lows of -6°C. Significant rainfall (107 mm), mostly overcast skies, and breezy conditions.

27 Poor

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-6° -1°
81%
Humidity
Very Humid

Weather

107 mm
Rainfall
6.4 m/s
Wind
Breezy
0.1
UV Index
Low
8.6h daylight

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