Muostakh Island
Island Eroding permafrost island in the Laptev Sea
A small island in the Lena Delta of the Sakha Republic, Muostakh Island is notable for rapid coastal erosion and permafrost research, visited mainly by scientists and survey teams.
Muostakh Island is a small permafrost island in the Laptev Sea off the Lena River delta in the Sakha Republic (Yakutia), Russia, notable for its ice-rich ground and rapid coastal erosion.
The island is characterized by steep coastal bluffs of thawing permafrost and organic-rich sediments; it is primarily studied by scientists monitoring Arctic coastal change rather than visited as a tourist site. Cliff faces often expose layered ice and sediment, and sections of the island can collapse into the sea during summer melt.
Muostakh is a geomorphological feature formed in the Holocene and its shoreline dynamics reflect ongoing Arctic warming and sea-ice changes. The island has been the subject of permafrost and coastal-erosion research for several decades.
Located off the eastern margin of the Lena Delta in the Laptev Sea, the island is remote and accessible only by boat in summer or by ice overflight in winter; there are no permanent facilities.
- Permafrost erosion: Composed of ice-rich permafrost and organic sediments and noted for rapid coastal erosion where cliffs retreat by measurable metres per year.
How to Get to Muostakh Island #
Muostakh Island lies in the East Siberian Sea off the northern coast of the Sakha Republic (Yakutia). Access requires specialised polar logistics: chartered icebreaker or expedition vessel and coordination with Russian regional authorities. Visits are usually scientific or documentary in purpose and arranged through research institutions.
Tips for Visiting Muostakh Island #
- Muostakh Island is in the East Siberian Sea and reached only with specialised Arctic logistics - join scientific expeditions or licensed tour operators.
- Be prepared for extreme cold, polar bears, and rapidly changing ice conditions if visiting in shoulder seasons.
- Respect local Sakha (Yakut) regulations and coordinate with regional authorities; landing sites can shift due to erosion.
Best Time to Visit Muostakh Island #
Visits occur in a narrow Arctic summer window and are typically undertaken by scientific teams or specialised polar operators.
Weather & Climate near Muostakh Island #
Polar climate with cold summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -36°C to 10°C. Semi-arid with limited rainfall.
January
January is the coldest month with highs of -29°C and lows of -36°C. Light rainfall.
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February
February is freezing with highs of -27°C and lows of -35°C. Light rainfall and mostly overcast skies.
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March
March is freezing with highs of -21°C and lows of -33°C. The driest month with just 9 mm and partly cloudy skies.
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April
April is freezing with highs of -9°C and lows of -21°C. Light rainfall and partly cloudy skies.
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May
May is freezing with highs of 1°C and lows of -8°C. Light rainfall and mostly overcast skies.
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June
June is cold with highs of 6°C and lows of -1°C. Light rainfall and mostly overcast skies.
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July
July is cold with highs of 10°C and lows of 2°C. Moderate rainfall (42 mm) and mostly overcast skies.
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August
August is cold with highs of 9°C and lows of 3°C. The wettest month with 45 mm of rain and mostly overcast skies.
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September
September is cold with highs of 5°C and lows of 0°C. Light rainfall and mostly overcast skies.
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October
October is freezing with highs of -6°C and lows of -13°C. Light rainfall and mostly overcast skies.
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November
November is freezing with highs of -17°C and lows of -24°C. Light rainfall and partly cloudy skies.
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December
December is freezing with highs of -22°C and lows of -29°C. Light rainfall.
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