Mount Omoto

Mountain Okinawa's highest peak on Ishigaki Island

The highest point on Ishigaki Island, Mount Omoto offers jungle paths, subtropical forest and viewpoints over the Yaeyama archipelago-a common objective for island hikers and nature tours.

Main image
Antenna tower at Mount Omoto 201912.jpg
Building at Mount Omoto 201912.jpg
Entrance to Mount Omoto 1.7km away 201912.JPG
Granite rocks on Mount Omoto 201912.jpg
Ishigaki omotodake.jpg
Ishigaki relay station.jpg
Ishigakijima Radar at Mount Omoto 201912.jpg
Mount Fukaiomoto and Mount Omoto seen from Mount Nosoko 201912 01.jpg
Mount Fukaiomoto and Mount Omoto seen from Mount Nosoko 201912 02.jpg
Mount Omoto seen from the New Ishigaki Airport 201912.jpg

Mount Omoto is the highest peak on Ishigaki Island and the highest point in Okinawa Prefecture, reaching roughly 525 metres.

The mountain is a granite massif topped by subtropical forest and is a focal point for island hiking and nature observation rather than technical climbing.

Geologically it is a resistant granite formation that rises above the central interior of Ishigaki Island and supports island-specific plants and birdlife.

It sits near the central ridge of Ishigaki in the Yaeyama Islands, within Okinawa Prefecture, providing inland elevation on an otherwise low-lying island.

  • Highest point: At about 525 metres it is the highest point on Ishigaki Island and the highest elevation in Okinawa Prefecture.
Mount Omoto
Yaeyama Islands, Okinawa Prefecture, Japan (specific island location varies)
24.4167, 124.1833
Open year‑round (daylight hours)
Free (no formal admission); national park fees may apply for protected areas in Okinawa

How to Get to Mount Omoto #

Reach Ishigaki Island by air from Naha or other regional airports; local buses, taxis and rental cars provide access to trailheads for Mount Omoto.

Tips for Visiting Mount Omoto #

  • Omoto is on Okinawa's Yaeyama islands; boat schedules and small local flights determine timing - plan transport carefully.
  • Respect local coral reef and coastal protections when combining a mountain visit with snorkeling.
  • Combine with Ishigaki or other Yaeyama islands for broader island culture and logistics.

Best Time to Visit Mount Omoto #

Best outside the typhoon season - winter and spring months offer stable seas and clear weather for island travel.

Dry season
December-April · 18-28°C
Calmer seas and less humid - good for island travel and hiking.
Typhoon season
June-October · 25-32°C
Heavy rains and storms possible; avoid travel during typhoon forecasts.

Weather & Climate near Mount Omoto #

Climate

Mount Omoto's climate is classified as Tropical Rainforest - Tropical Rainforest climate with hot summers (peaking in July) and mild winters (coldest in January). Temperatures range from 14°C to 30°C. Heavy rainfall (2318 mm/year), wettest in August.

Best Time to Visit
JulyAugustJune
Temperature & Rainfall
Temperature Range
31°
Warmest Month
11°
Coldest Month
Monthly Conditions

January

January is the coolest month with highs of 19°C and lows of 14°C. Significant rainfall (162 mm) and mostly overcast skies.

56 Acceptable

Comfort

17°
Feels Like Cool
17°C
Temperature
14° 19°
77%
Humidity
Very Humid

Weather

162 mm
Rainfall
5.4 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
10.7h daylight

February

February is cool with highs of 19°C and lows of 14°C. Significant rainfall (143 mm), mostly overcast skies, and breezy conditions.

58 Acceptable

Comfort

17°
Feels Like Cool
17°C
Temperature
15° 19°
79%
Humidity
Very Humid

Weather

143 mm
Rainfall
6.5 m/s
Wind
Breezy
1.1
UV Index
High
11.2h daylight

March

March is mild with highs of 21°C and lows of 16°C. Significant rainfall (149 mm) and mostly overcast skies.

60 Good

Comfort

19°
Feels Like Mild
19°C
Temperature
16° 21°
79%
Humidity
Very Humid

Weather

149 mm
Rainfall
5.9 m/s
Wind
Light Breeze
1.3
UV Index
High
11.9h daylight

April

April is mild with highs of 24°C and lows of 19°C. Significant rainfall (171 mm) and mostly overcast skies.

68 Good

Comfort

21°
Feels Like Mild
21°C
Temperature
19° 24°
82%
Humidity
Very Humid

Weather

171 mm
Rainfall
4.8 m/s
Wind
Light Breeze
1.6
UV Index
Very High
12.6h daylight

May

May is mild with muggy conditions (dew point 23°C). Heavy rain (229 mm) and mostly overcast skies.

66 Good

Comfort

24°
Feels Like Mild
24°C
Temperature
21° 26°
84%
Humidity
Very Humid

Weather

229 mm
Rainfall
4.1 m/s
Wind
Light Breeze
2.0
UV Index
Very High
13.2h daylight

June

June is warm with stifling humidity (dew point 25°C). Heavy rain (205 mm) and partly cloudy skies.

70 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
24° 28°
86%
Humidity
Very Humid

Weather

205 mm
Rainfall
4.3 m/s
Wind
Light Breeze
2.3
UV Index
Extreme
13.5h daylight

July

July is the hottest month, feeling like 31°C with oppressive humidity. Significant rainfall (183 mm) and partly cloudy skies.

76 Very Good

Comfort

31°
Feels Like Hot
27°C
Temperature
25° 30°
83%
Humidity
Very Humid

Weather

183 mm
Rainfall
4.6 m/s
Wind
Light Breeze
2.6
UV Index
Extreme
13.4h daylight

August

August is warm with stifling humidity (dew point 26°C). The wettest month with heavy rain (255 mm) and partly cloudy skies.

74 Very Good

Comfort

27°
Feels Like Warm
27°C
Temperature
25° 29°
82%
Humidity
Very Humid

Weather

255 mm
Rainfall
4.2 m/s
Wind
Light Breeze
2.3
UV Index
Extreme
12.9h daylight

September

September is warm with stifling humidity (dew point 25°C). Heavy rain (239 mm) and partly cloudy skies.

70 Very Good

Comfort

26°
Feels Like Warm
26°C
Temperature
24° 28°
81%
Humidity
Very Humid

Weather

239 mm
Rainfall
4.2 m/s
Wind
Light Breeze
1.9
UV Index
Very High
12.2h daylight

October

October is mild with muggy conditions (dew point 22°C). Heavy rain (230 mm) and partly cloudy skies.

70 Very Good

Comfort

24°
Feels Like Mild
24°C
Temperature
22° 26°
78%
Humidity
Very Humid

Weather

230 mm
Rainfall
5.3 m/s
Wind
Light Breeze
1.5
UV Index
High
11.5h daylight

November

November is mild with highs of 23°C and lows of 19°C. Significant rainfall (190 mm) and mostly overcast skies.

68 Good

Comfort

21°
Feels Like Mild
21°C
Temperature
19° 23°
78%
Humidity
Very Humid

Weather

190 mm
Rainfall
5.7 m/s
Wind
Light Breeze
1.0
UV Index
High
10.8h daylight

December

December is mild with highs of 20°C and lows of 16°C. Significant rainfall (162 mm) and mostly overcast skies.

56 Acceptable

Comfort

18°
Feels Like Mild
18°C
Temperature
16° 20°
76%
Humidity
Very Humid

Weather

162 mm
Rainfall
5.9 m/s
Wind
Light Breeze
0.8
UV Index
Moderate
10.5h daylight

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