UmnakUmnak at a Glance
About Umnak
Umnak is an island in the Aleutian Islands of Alaska, one of the Fox Islands group in the central Aleutians. The island is volcanic in origin and has rugged terrain with limited permanent settlement.
Remote coastal landscapes, seabird colonies and volcanic features define the island; access is by boat or charter flights and facilities are minimal. The island’s remoteness makes it a destination for specialized wildlife and geological visits rather than conventional tourism.
The island has been used by Aleut peoples for centuries and later came under Russian and then U.S. administration. Its isolation meant only limited permanent settlement and primarily seasonal resource use.
Situated in the central Aleutians, Umnak lies among the Fox Islands in the North Pacific, between other Aleutian islands and far from Alaska’s mainland. The island is exposed to oceanic weather and lies in a sparsely populated maritime region.
- Volcanic island: Part of the Aleutian island chain and characterized by volcanic topography and remote, largely uninhabited terrain.
Best Time to Visit Umnak
The best time to visit Umnak is the brief summer window (June-August) when sea and weather conditions are most favorable for access and outdoor activity.
Weather & Climate near Umnak
Umnak's climate is classified as Tundra - Tundra climate with cold summers (peaking in August) and freezing winters (coldest in February). Temperatures range from -4°C to 12°C. Abundant rainfall (1446 mm/year), wettest in October.
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -3° - 1° | -7° | 132 mm | - | - | 6.8 m/s | - | - |
| February | - | -4° - 0° | -8° | 142 mm | - | - | 6.8 m/s | - | - |
| March | - | -4° - 0° | -8° | 118 mm | - | - | 6.1 m/s | - | - |
| April | - | -3° - 2° | -6° | 99 mm | - | - | 6.2 m/s | - | - |
| May | - | 0° - 4° | -3° | 107 mm | - | - | 5.6 m/s | - | - |
| June | - | 3° - 8° | 1° | 74 mm | - | - | 5.4 m/s | - | - |
| July | - | 6° - 11° | 5° | 61 mm | - | - | 5.1 m/s | - | - |
| August | - | 7° - 12° | 6° | 74 mm | - | - | 5.1 m/s | - | - |
| September | - | 4° - 10° | 3° | 133 mm | - | - | 6.2 m/s | - | - |
| October | - | 0° - 6° | -2° | 187 mm | - | - | 6.9 m/s | - | - |
| November | - | -2° - 3° | -5° | 166 mm | - | - | 7.2 m/s | - | - |
| December | - | -3° - 1° | -7° | 153 mm | - | - | 6.8 m/s | - | - |
How to Get to Umnak
Umnak is a remote island in the Aleutians with no scheduled commercial service. It is reached only by private boat or by charter/small bush aircraft from other Aleutian communities (for example Unalaska/Dutch Harbor or Adak) or by longer charter from Anchorage; travel requires advance logistics planning and is subject to weather and operational constraints.
Tips for Visiting Umnak
- Treat Umnak as a remote, logistically challenging destination-access is limited and typically requires advance arrangements with experienced Aleutian operators by boat or charter aircraft.
- Aim for late summer (July-August) when sea and weather windows are most favorable for landing and wildlife viewing; outside that window conditions and services are highly restricted.
- Expect no visitor infrastructure on most of the island and plan to travel with a guide who understands local landing permissions and bear safety; solo spontaneous visits are not practical.