Duke Island (Alaska)
Island Remote Alaskan island in Alexander Archipelago
Remote island in Southeast Alaska’s Alexander Archipelago; visited by boaters, kayakers and anglers for coastal hiking, wildlife viewing and sheltered anchorages.
Duke Island is a small island in the U.S. state of Alaska located in coastal waters at approximately 54.93083 N, 131.34556 W. It is one of many minor islands off Alaska’s southeastern coast.
The island is a low-profile coastal feature with shoreline and nearshore marine habitat rather than developed visitor facilities. There are no widely published visitor services or infrastructure associated with the island.
There is little widely recorded published history specific to the island; like many small Alaskan islands it has been part of the coastal landscape used traditionally by local Indigenous peoples and later charted by mariners. No permanent settlements or major historical structures are documented in widely available sources.
Geographically the island sits in southeastern Alaska’s coastal waters and is administered as part of the State of Alaska. The immediate surroundings are predominately open water and other small coastal islands.
How to Get to Duke Island (Alaska) #
Accessible only by private boat or charter from regional Alaskan ports; travel is dependent on sea state and requires careful planning in coordination with local authorities.
Tips for Visiting Duke Island (Alaska) #
- Duke Island is remote-coordinate logistics and carry emergency communication equipment.
- Wildlife sightings are common; maintain safe distances and follow park or local guidelines.
- Bring cold-weather clothing even in summer-conditions can be cool and changeable on Alaskan islands.
Best Time to Visit Duke Island (Alaska) #
Summer months are the practical window for any access, typically as part of chartered or research trips.
Weather & Climate near Duke Island (Alaska) #
Duke Island (Alaska)'s climate is classified as Oceanic - Oceanic climate with cool summers (peaking in August) and cold winters (coldest in January). Temperatures range from -1°C to 18°C. Heavy rainfall (2347 mm/year), wettest in October.
January
January is the coolest month with highs of 4°C and lows of -1°C. Heavy rain (226 mm).
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February
February is cold with highs of 5°C and lows of 0°C. Significant rainfall (186 mm).
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March
March is cold with highs of 7°C and lows of 1°C. Significant rainfall (179 mm).
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April
April is cold with highs of 10°C and lows of 3°C. Significant rainfall (168 mm).
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May
May is cold with highs of 13°C and lows of 6°C. Significant rainfall (138 mm).
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June
June is cool with highs of 16°C and lows of 9°C. Significant rainfall (112 mm).
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July
July is cool with highs of 18°C and lows of 11°C. Significant rainfall (106 mm).
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August
August is cool with highs of 18°C and lows of 12°C. Significant rainfall (154 mm).
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September
September is cool with highs of 15°C and lows of 9°C. Heavy rain (218 mm).
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October
October is cold with highs of 11°C and lows of 5°C. The wettest month with heavy rain (320 mm).
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November
November is cold with highs of 6°C and lows of 2°C. Heavy rain (277 mm).
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December
December is cold with highs of 4°C and lows of 0°C. Heavy rain (263 mm).
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