Main image

Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC CC BY-SA 4.0 Wikimedia Commons

Kuiu Island

Island

A large forested island in southeast Alaska's Alexander Archipelago, Kuiu draws visitors for backcountry hiking, sea-kayaking, salmon and halibut fishing, and remote wildlife viewing-grizzly bears and bald eagles are commonly reported.

Kuiu Island Juneau, AlaskaAnchorage, AlaskaFairbanks, AlaskaSitka, AlaskaUtqiagvik, AlaskaNome, AlaskaKetchikan, AlaskaKodiakKuiu Island
In this guide

Kuiu Island essentials

Address: Kuiu Island, Alaska, USA
GoogleAppleOSM

About Kuiu Island

Kuiu Island is an island in the Alexander Archipelago of southeastern Alaska. It lies within the coastal island chain of Alaska and is part of the region commonly managed as Tongass National Forest.

The island is predominantly wilderness with long, dissected coastline and dense temperate rainforest. It is sparsely populated and used mainly for subsistence and recreational hunting and fishing; there are no large towns on the island.

Historically the island is part of the broader coastal environment of southeastern Alaska and has been incorporated into federal land management frameworks. Much of its land remains in a near-natural state with limited development.

Geographically it sits in southeastern Alaska at approximately 56.54°N, 134.05°W, within the Alexander Archipelago among many other narrow forested islands and channels. Nearest significant communities are small coastal towns in southeastern Alaska rather than large cities.

When to Go

Best Time to Visit Kuiu Island

Summer is the most practical time for access, with calm seas and long daylight for boat travel.

Summer
June-August · 8-16°C (46-61°F)
Mild temperatures, long daylight, good for wildlife viewing and boating.
Shoulder seasons
May & September · 5-12°C (41-54°F)
Fewer visitors; rains increase and some services reduce schedule.

Weather & Climate near Kuiu Island

Climate

Kuiu Island's climate is classified as Oceanic - Oceanic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -3°C to 16°C. Heavy rainfall (4454 mm/year), wettest in October.

Air Quality: AQI 14 Good
Temperature & Rainfall
Temperature Range
17°
Warmest Month
-3°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -3° - 2° -5° 446 mm - - 4.4 m/s - -
February - -2° - 4° -3° 360 mm - - 4.2 m/s - -
March - -1° - 5° -2° 331 mm - - 4.1 m/s - -
April - 2° - 8° 2° 283 mm - - 3.8 m/s - -
May - 5° - 12° 6° 245 mm - - 3.5 m/s - -
June - 8° - 15° 11° 192 mm - - 3.1 m/s - -
July - 10° - 16° 13° 187 mm - - 2.9 m/s - -
August - 10° - 17° 13° 271 mm - - 2.9 m/s - -
September - 8° - 14° 11° 469 mm - - 3.3 m/s - -
October - 5° - 9° 4° 689 mm - - 4.0 m/s - -
November - 0° - 5° -1° 509 mm - - 4.3 m/s - -
December - -2° - 3° -4° 472 mm - - 4.5 m/s - -
Getting There & Around

How to Get to Kuiu Island

Kuiu Island is usually reached by private boat or charter from larger towns in Southeast Alaska (e.g., Wrangell or Petersburg). There are no regular public ferry services directly serving the island; plan logistics with local charter operators.

Tips for Visiting Kuiu Island

  • Travel by scheduled ferry or private boat from larger towns in the Alexander Archipelago; services can be infrequent.
  • Prepare for basic facilities: the island is sparsely populated and lodging options are limited.
  • Bring binoculars and a camera - coastal wildlife and old-growth pockets are the main attractions.