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Office of Coast Survey CC BY-SA 4.0 Wikimedia Commons

Dall Island

Island

Large, remote island in Alaska's Alexander Archipelago with dense temperate rainforest; visited by anglers, birders and boaters for salmon fishing, sea-kayaking and brown bear sightings along the coast.

Dall Island Juneau, AlaskaAnchorage, AlaskaFairbanks, AlaskaSitka, AlaskaUtqiagvik, AlaskaNome, AlaskaKetchikan, AlaskaKodiakDall Island
In this guide

Dall Island essentials

Country: United States
Driest months: May-Jul
Pay in: Dollar ($)
Language: English

Dall Island at a Glance

About Dall Island

Dall Island is a large, forested island in the Alaska Panhandle, part of southeastern Alaska’s island archipelago and named after the naturalist William Healey Dall.

The island is visited for its remote coastline, wildlife viewing and fishing opportunities rather than for developed tourist infrastructure; its rugged shores and nearshore waters are important habitat for marine species. Access is generally by private boat or local water transport and the island has little in the way of permanent visitor facilities.

Indigenous use and maritime activity have long been part of the island’s history; later mapping and naming by American naturalists and explorers gave it the current name.

Dall Island lies off the southwestern side of the Alexander Archipelago in the Alaska Panhandle and is separated from larger nearby islands by coastal waterways.

  • Name and character: Named for the naturalist William Healey Dall, the island is largely remote and sparsely populated with extensive shoreline used by marine wildlife.
When to Go

Best Time to Visit Dall Island

Best in summer (June-August) for the mildest weather and most reliable access by boat or plane.

Summer
Jun-Aug · ~5-15°C
Mildest weather and best time for boat access, fishing and shoreline activities.
Shoulder seasons
May & Sep · ~2-12°C
Cool and often wet; fewer visitors but weather can be variable and boat schedules less frequent.
Winter
Nov-Mar · ~-5-5°C
Cold, often wet and windy with limited access; travel by boat/floatplane can be sporadic.

Weather & Climate near Dall Island

Climate

Dall Island's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in August) and cold winters (coldest in March). Temperatures range from 0°C to 15°C. Heavy rainfall (2945 mm/year), wettest in October.

Air Quality: AQI 14 Good
Temperature & Rainfall
Temperature Range
15°
Warmest Month
0°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - 0° - 4° -2° 288 mm - - 5.2 m/s - -
February - 1° - 5° -2° 236 mm - - 4.9 m/s - -
March - 0° - 4° -2° 229 mm - - 4.6 m/s - -
April - 1° - 6° 0° 205 mm - - 4.2 m/s - -
May - 4° - 9° 4° 164 mm - - 4.0 m/s - -
June - 7° - 12° 7° 139 mm - - 3.8 m/s - -
July - 9° - 14° 12° 134 mm - - 3.5 m/s - -
August - 10° - 15° 12° 180 mm - - 3.5 m/s - -
September - 8° - 13° 10° 288 mm - - 4.0 m/s - -
October - 5° - 9° 4° 422 mm - - 4.6 m/s - -
November - 2° - 6° 0° 337 mm - - 5.0 m/s - -
December - 0° - 5° -2° 323 mm - - 5.2 m/s - -
Getting There & Around

How to Get to Dall Island

Dall Island is remote and has no road connections; it is reached only by boat or floatplane. Access is typically by private boat or chartered floatplane from nearby coastal towns in Southeast Alaska or from ports in British Columbia (arrange a charter from the nearest regional service center).

Tips for Visiting Dall Island

  • Treat Dall Island as a remote, no‑services destination: arrange a charter boat or floatplane in advance and expect to be self‑sufficient (fuel, food, communications) for the duration of your visit.
  • There are no formal visitor facilities-landings, trails and camps are informal-so research landing spots and local regulations before you go and file trip plans with Alaska authorities.