Chūgoku Mountains

Mountains Mountain range across western Honshu with rugged peaks

Mountain chain across western Honshū forming the backbone of the Chūgoku region; hikers come for forested ridges, rural hot-spring towns and scenic drives between inland valleys and coastal plains.

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Main image
Main image
Main image

The Chugoku Mountains are an east-west mountain chain across the Chugoku region of western Honshu in Japan, forming the backbone of that region. The range includes peaks reaching around 1,700-1,800 metres and shapes regional geography and climate.

The mountains have long formed natural boundaries within western Honshu and influenced historical travel and settlement patterns; local transport routes and towns developed around accessible passes. Forestry, mountain agriculture and small-scale mining have featured in the region’s economic history.

The range runs roughly east-west across the Chugoku region of Honshu, separating the Seto Inland Sea coast to the south from the Sea of Japan coast to the north. It spans multiple prefectures and lies west of the Kansai region.

  • Watershed effect: The range forms a watershed between the Seto Inland Sea to the south and the Sea of Japan to the north, influencing local climate and river courses across western Honshu.
  • Elevation: Highest summits, such as Mount Daisen, reach roughly 1,700 to 1,800 metres, offering alpine terrain, ski areas and hiking routes.
Chūgoku Mountains
35.2500, 134.0000

How to Get to Chūgoku Mountains #

The Chūgoku Mountains are accessible via multiple regional JR rail lines and national highways. Major gateway cities include Hiroshima and Okayama; from there local buses and roads reach trailheads and mountain towns.

Tips for Visiting Chūgoku Mountains #

  • Use the Chugoku region's rail network (JR lines) and local buses to reach trailheads; some routes require a car.
  • If planning to hike, check for alpine huts and seasonally closed paths.

Best Time to Visit Chūgoku Mountains #

Late spring to early autumn offers the best access for hikes and mountain roads; winter conditions can be severe at higher elevations.

Late spring-autumn
May-October · 10-25°C (depending on elevation)
Ideal for hiking with lower snow risk and accessible trails.

Weather & Climate near Chūgoku Mountains #

Climate

Chūgoku Mountains's climate is classified as Hot-Summer Continental - Hot-Summer Continental climate with warm summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -6°C to 25°C. Abundant rainfall (1936 mm/year), wettest in July.

Best Time to Visit
AugustJulyOctober
Temperature & Rainfall
Temperature Range
35°
Warmest Month
-10°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of 2°C and lows of -6°C. Regular rainfall (99 mm) and mostly overcast skies.

31 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-6°
87%
Humidity
Very Humid

Weather

99 mm
Rainfall
5.7 m/s
Wind
Light Breeze
0.3
UV Index
Low
9.9h daylight

February

February is freezing with highs of 2°C and lows of -6°C. Significant rainfall (102 mm) and mostly overcast skies.

29 Poor

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-6°
85%
Humidity
Very Humid

Weather

102 mm
Rainfall
4.7 m/s
Wind
Light Breeze
0.5
UV Index
Low
10.8h daylight

March

March is cold with highs of 6°C and lows of -3°C. Significant rainfall (123 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
82%
Humidity
Very Humid

Weather

123 mm
Rainfall
5.7 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
11.8h daylight

April

April is cold with highs of 12°C and lows of 3°C. Significant rainfall (154 mm) and mostly overcast skies.

46 Poor

Comfort

Feels Like Cold
C
Temperature
13°
79%
Humidity
Very Humid

Weather

154 mm
Rainfall
3.9 m/s
Wind
Light Breeze
1.2
UV Index
High
13.0h daylight

May

May is cool with highs of 17°C and lows of 8°C. Significant rainfall (168 mm) and mostly overcast skies.

56 Acceptable

Comfort

12°
Feels Like Cool
12°C
Temperature
17°
78%
Humidity
Very Humid

Weather

168 mm
Rainfall
3.4 m/s
Wind
Light Breeze
1.5
UV Index
High
13.9h daylight

June

June is cool with highs of 20°C and lows of 12°C. Heavy rain (251 mm) and mostly overcast skies.

54 Acceptable

Comfort

17°
Feels Like Cool
17°C
Temperature
13° 21°
82%
Humidity
Very Humid

Weather

251 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.5
UV Index
High
14.4h daylight

July

July is mild with highs of 24°C and lows of 17°C. The wettest month with heavy rain (285 mm) and mostly overcast skies.

64 Good

Comfort

21°
Feels Like Mild
21°C
Temperature
17° 24°
86%
Humidity
Very Humid

Weather

285 mm
Rainfall
3.5 m/s
Wind
Light Breeze
1.6
UV Index
Very High
14.1h daylight

August

August is the warmest month with highs of 25°C and lows of 18°C. Significant rainfall (194 mm) and mostly overcast skies.

68 Good

Comfort

22°
Feels Like Mild
22°C
Temperature
18° 25°
84%
Humidity
Very Humid

Weather

194 mm
Rainfall
3.2 m/s
Wind
Light Breeze
1.7
UV Index
Very High
13.3h daylight

September

September is cool with highs of 21°C and lows of 14°C. Heavy rain (245 mm) and mostly overcast skies.

56 Acceptable

Comfort

17°
Feels Like Cool
17°C
Temperature
14° 21°
85%
Humidity
Very Humid

Weather

245 mm
Rainfall
3.3 m/s
Wind
Light Breeze
1.2
UV Index
High
12.3h daylight

October

October is cool with highs of 16°C and lows of 7°C. Significant rainfall (131 mm) and mostly overcast skies.

58 Acceptable

Comfort

11°
Feels Like Cool
11°C
Temperature
16°
84%
Humidity
Very Humid

Weather

131 mm
Rainfall
5.0 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
11.2h daylight

November

November is cold with highs of 10°C and lows of 2°C. Regular rainfall (100 mm) and mostly overcast skies.

50 Acceptable

Comfort

Feels Like Cold
C
Temperature
10°
85%
Humidity
Very Humid

Weather

100 mm
Rainfall
4.3 m/s
Wind
Light Breeze
0.4
UV Index
Low
10.2h daylight

December

December is cold with highs of 5°C and lows of -3°C. Regular rainfall (84 mm) and mostly overcast skies.

40 Poor

Comfort

Feels Like Cold
C
Temperature
-3°
87%
Humidity
Very Humid

Weather

84 mm
Rainfall
4.8 m/s
Wind
Light Breeze
0.3
UV Index
Low
9.7h daylight

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