Tanaga Island
Island Volcanic Aleutian island in Alaska's Andreanof group
Volcanic island in the Aleutians, Alaska, largely uninhabited and accessed only by boat or air charter. Visitors are typically scientists, birdwatchers or expedition cruises calling for remote wilderness and seabird colonies.
Tanaga Island is an uninhabited island in the Aleutian chain of Alaska, dominated by volcanic terrain. The island’s principal feature is Tanaga Volcano, a tall stratovolcano that forms the island’s central massif.
The landscape is rugged with volcanic peaks, lava flows and limited coastal lowlands; there are no settlements or services. Human activity on the island is minimal and typically limited to geological or ecological research.
The island is part of the Aleutian Islands, which are volcanic and tectonically active; Tanaga is one of several Aleutian volcanoes and contributes to the region’s seismic and volcanic profile.
Tanaga lies in the central Aleutians within Alaska and is administered as part of the state; access is by sea or air only under expedition conditions.
- Access and infrastructure: The island is uninhabited and has no permanent infrastructure; visits are limited to scientific or specialist expeditions.
What to See #
- Tanaga Volcano: Tanaga Volcano, the island's main volcanic cone rising to about 1,806 metres and forming the principal topographic feature.
How to Get to Tanaga Island #
There are no scheduled services to Tanaga Island. Access is by private charter from Adak or other Aleutian hubs; bush plane landings are possible with prior arrangements and permits. Travel requires experienced operators familiar with Aleutian weather and seas.
Tips for Visiting Tanaga Island #
- Do not attempt landings without an experienced Aleutian skipper - the surf and currents are unforgiving.
- There are no services; be fully self-sufficient and file a float plan with the U.S. Coast Guard before attempting a visit.
- Respect wildlife closures and nesting seasons; Tanaga supports sensitive bird colonies and marine mammal haul-outs.
Best Time to Visit Tanaga Island #
Tanaga Island is an Aleutian wilderness only safely visited in summer via skilled charter vessels or bush plane arrangements.
Weather & Climate near Tanaga Island #
Tanaga Island's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -2°C to 12°C. Abundant rainfall (1170 mm/year), wettest in October.
January
January is the coldest month with highs of 1°C and lows of -2°C. Regular rainfall (98 mm) and windy conditions.
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February
February is freezing with highs of 1°C and lows of -2°C. Regular rainfall (97 mm) and breezy conditions.
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March
March is cold with highs of 2°C and lows of -1°C. Regular rainfall (97 mm) and breezy conditions.
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April
April is cold with highs of 3°C and lows of 0°C. Regular rainfall (89 mm) and breezy conditions.
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May
May is cold with highs of 5°C and lows of 2°C. Moderate rainfall (78 mm) and breezy conditions.
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June
June is cold with highs of 8°C and lows of 5°C. Moderate rainfall (55 mm) and breezy conditions.
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July
July is cold with highs of 11°C and lows of 7°C. Moderate rainfall (61 mm) and breezy conditions.
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August
August is cold with highs of 12°C and lows of 8°C. Regular rainfall (88 mm) and breezy conditions.
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September
September is cold with highs of 10°C and lows of 7°C. Regular rainfall (100 mm) and breezy conditions.
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October
October is cold with highs of 7°C and lows of 3°C. The wettest month with heavy rain (149 mm) and breezy conditions.
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November
November is cold with highs of 4°C and lows of 1°C. Significant rainfall (143 mm) and breezy conditions.
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December
December is cold with highs of 2°C and lows of -1°C. Significant rainfall (115 mm) and breezy conditions.
