Alaska Maritime National Wildlife Refuge
Park Extensive coastal wildlife refuge across Alaska's islands
A sprawling refuge across Alaska’s islands and coasts managed for seabird colonies, marine mammals and wilderness research; expedition cruises and scientific teams visit for wildlife observation.
The Alaska Maritime National Wildlife Refuge is a U.S. federal wildlife refuge that protects Alaska’s offshore islands, islets and adjacent marine habitats; it spans thousands of locations along Alaska’s coastline. Its area encompasses over two million hectares and more than 2,400 islands, islets, rocks and reefs.
The refuge is important for breeding seabirds and marine mammals - millions of migratory and resident birds nest on its islands and it supports substantial populations of seals, sea lions and other marine species. Access is remote and most sites are reached only by private boat or aircraft; field visits are concentrated in the ice-free summer months.
The refuge was created and is managed by the U.S. Fish and Wildlife Service to conserve critical breeding, moulting and feeding habitats for seabirds and marine mammals. Management includes seasonal protections, research permitting and partnerships with local communities and researchers.
Geographically the refuge extends along Alaska’s maritime zones from the Aleutian Islands in the west, across the Bering Sea and Aleutians, along the Alaska Peninsula and Kodiak region, and into islands in the Gulf of Alaska; individual units are widely separated and remote from major population centers.
- Scale: Covers a vast area of offshore islands and nearshore waters - more than 2,400 islands, islets, rocks and reefs over millions of acres of habitat.
- Management and access: Managed by the U.S. Fish and Wildlife Service; access to many islands is by charter boat or aircraft and is seasonally restricted to protect wildlife.
- Purpose: Established to protect marine birds and mammals and their breeding sites; the refuge supports some of the world's largest seabird colonies.
What to See #
- Aleutian Islands unit: Aleutian Islands unit - includes thousands of islands and islets along the Aleutian chain and supports very large seabird and marine mammal colonies.
- Bering Sea unit: Bering Sea unit - covers islands and rocks in the Bering Sea that are critical breeding sites for auklets, murres and other northern seabirds.
- Alaska Peninsula and Gulf units: Gulf of Alaska / Alaska Peninsula unit - includes islands along the Alaska Peninsula and Gulf of Alaska important for sea lions, seals and nesting seabirds.
How to Get to Alaska Maritime National Wildlife Refuge #
Access is by air or sea from hubs such as Anchorage or coastal Alaska towns; many sites require chartered boats or floatplanes. Consult the refuge website and licensed operators for permitted trips and seasonal access information.
Tips for Visiting Alaska Maritime National Wildlife Refuge #
- Book wildlife cruises through licensed operators-land-based access is limited for many refuges.
- Bring binoculars and a telephoto lens; much of the refuge is best observed from ships.
- Expect rugged conditions-cold, wind, and long distances between points of interest.
Best Time to Visit Alaska Maritime National Wildlife Refuge #
Summer months are the primary window for wildlife viewing and ship-based access; weather dictates exact opportunities.
Weather & Climate near Alaska Maritime National Wildlife Refuge #
Alaska Maritime National Wildlife Refuge's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in March). Temperatures range from -6°C to 10°C. Abundant rainfall (1292 mm/year), wettest in October.
January
January is freezing with highs of -1°C and lows of -5°C. Significant rainfall (105 mm).
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February
February is freezing with highs of -2°C and lows of -6°C. Significant rainfall (102 mm).
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March
March is the coldest month with highs of -3°C and lows of -6°C. Regular rainfall (89 mm).
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April
April is freezing with highs of -2°C and lows of -5°C. Moderate rainfall (73 mm).
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May
May is cold with highs of 1°C and lows of -1°C. Regular rainfall (88 mm).
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June
June is cold with highs of 5°C and lows of 2°C. Regular rainfall (86 mm).
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July
July is cold with highs of 9°C and lows of 5°C. Moderate rainfall (76 mm).
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August
August is cold with highs of 10°C and lows of 6°C. Regular rainfall (99 mm).
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September
September is cold with highs of 6°C and lows of 3°C. Significant rainfall (144 mm).
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October
October is cold with highs of 3°C and lows of -1°C. The wettest month with heavy rain (154 mm).
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November
November is freezing with highs of 0°C and lows of -4°C. Significant rainfall (142 mm).
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December
December is freezing with highs of -1°C and lows of -5°C. Significant rainfall (134 mm).