Mount Iō (Shiretoko)
Mountain Volcanic cone on Shiretoko Peninsula, fumarolic activity
Volcanic cone on Hokkaido’s Shiretoko Peninsula within national park boundaries; visitors come for coastal hikes, thermal fumaroles and wildlife-watching along the peninsula.
How to Get to Mount Iō (Shiretoko) #
Mount Iō sits on the Shiretoko Peninsula in eastern Hokkaido. The usual gateway town is Shari; from there local roads and hiking trails lead toward the mountain and nearby geothermal sites. Public buses serve parts of the peninsula in summer; for remote access hire local transport or join guided tours that include trailheads and coastal boat trips.
Tips for Visiting Mount Iō (Shiretoko) #
- Boat traffic on the Shiretoko Peninsula can be seasonal; check ferry schedules if combining with coastal trips.
- Bring layers-the climate is cool and changeable, and fog often rolls in from the Sea of Okhotsk.
- Respect wildlife: Shiretoko is home to brown bears; stick to marked paths and follow local wardens' advice.
Best Time to Visit Mount Iō (Shiretoko) #
Late spring through early autumn offers the best access and weather for hikes; summers are cool and often foggy but the most practicable season.
Weather & Climate near Mount Iō (Shiretoko) #
Mount Iō (Shiretoko)'s climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -16°C to 15°C. Abundant rainfall (1293 mm/year), wettest in September.
January
January is freezing with highs of -10°C and lows of -16°C. Moderate rainfall (70 mm), mostly overcast skies, and breezy conditions.
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February
February is the coldest month with highs of -10°C and lows of -16°C. Moderate rainfall (56 mm), mostly overcast skies, and breezy conditions.
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March
March is freezing with highs of -7°C and lows of -13°C. Regular rainfall (90 mm), mostly overcast skies, and breezy conditions.
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April
April is freezing with highs of 0°C and lows of -6°C. Regular rainfall (91 mm), mostly overcast skies, and breezy conditions.
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May
May is cold with highs of 5°C and lows of -1°C. Significant rainfall (114 mm), mostly overcast skies, and breezy conditions.
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June
June is cold with highs of 10°C and lows of 4°C. Significant rainfall (101 mm) and mostly overcast skies.
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July
July is cool with highs of 14°C and lows of 8°C. Significant rainfall (117 mm) and mostly overcast skies.
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August
August is cool with highs of 15°C and lows of 10°C. Significant rainfall (152 mm) and mostly overcast skies.
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September
September is cold with highs of 12°C and lows of 6°C. The wettest month with heavy rain (175 mm) and mostly overcast skies.
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October
October is cold with highs of 7°C and lows of 1°C. Significant rainfall (142 mm), partly cloudy skies, and breezy conditions.
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November
November is freezing with highs of 0°C and lows of -5°C. Significant rainfall (111 mm), mostly overcast skies, and breezy conditions.
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December
December is freezing with highs of -6°C and lows of -11°C. Moderate rainfall (74 mm), mostly overcast skies, and breezy conditions.
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