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Mount Redoubt

Mountain

Active stratovolcano in Alaska's Cook Inlet, noted for explosive eruptions that produce ash clouds affecting aviation. Scientists, pilots and adventurous visitors watch it from flightseeing tours and coastal viewpoints.

Mount Redoubt Juneau, AlaskaAnchorage, AlaskaFairbanks, AlaskaSitka, AlaskaUtqiagvik, AlaskaNome, AlaskaKetchikan, AlaskaKodiakMount Redoubt
In this guide

Mount Redoubt essentials

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

Mount Redoubt at a Glance

About Mount Redoubt

Mount Redoubt is an active stratovolcano in the Chigmit Mountains of the Aleutian Range in Alaska. Its summit reaches 10,197 ft (3,108 m), making it one of the higher peaks in the region.

The mountain is noted for its glaciated summit and explosive eruptions that produce high ash plumes and pyroclastic activity. Scientific monitoring, aerial observations, and occasional flyover viewing are the main ways people observe the volcano; public access near the summit is limited and weather can change rapidly.

Recorded eruptions in the modern era include major events in 1989-1990 and again in 2009, both of which produced significant ash clouds and local volcanic hazards. The Alaska Volcano Observatory maintains ongoing monitoring and issues alerts when activity increases.

Mount Redoubt sits on the northern side of Cook Inlet in south-central Alaska, within the Chigmit subrange of the Aleutian Range. It is located southwest of Anchorage and is visible from parts of the surrounding lowlands when weather permits.

  • Volcanic activity: Eruptions are explosive and can send ash plumes high enough to disrupt aviation; the volcano is monitored by the Alaska Volcano Observatory.
  • Summit elevation: Glaciated summit reaches 10,197 ft (3,108 m) above sea level, and eruptions have produced lahars and ashfall that affect nearby lowlands.
When to Go

Best Time to Visit Mount Redoubt

Late spring through summer (June-August) is the best time for visiting Mount Redoubt for clearer weather and easier access.

Summer
June-August · 5 to 15°C
Best time for access and visibility around the volcano's lower slopes and coastal approaches-less snow, milder weather and more daylight for flights/boat trips.
Shoulder season
May, September · 0 to 8°C
Cool, variable weather with remaining snow at higher elevations; fewer visitors but conditions can change quickly.
Winter
October-April · -15 to 0°C
Harsh, snowy conditions with limited access; not recommended for casual visits due to cold, avalanches and reduced visibility.

Weather & Climate near Mount Redoubt

Climate

Mount Redoubt's climate is classified as Ice Cap - Ice Cap climate with cold summers (peaking in July) and freezing winters (coldest in March). Temperatures range from -17°C to 2°C. Moderate rainfall (873 mm/year).

Air Quality: AQI 16 Good
Temperature & Rainfall
Temperature Range
3°
Warmest Month
-17°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -14° - -8° -20° 65 mm - - 6.6 m/s - -
February - -12° - -7° -17° 70 mm - - 6.1 m/s - -
March - -17° - -13° -23° 59 mm - - 4.2 m/s - -
April - -15° - -12° -21° 39 mm - - 4.3 m/s - -
May - -9° - -6° -14° 37 mm - - 3.8 m/s - -
June - -5° - 0° -8° 95 mm - - 4.5 m/s - -
July - -3° - 3° -5° 100 mm - - 4.4 m/s - -
August - -3° - 2° -5° 111 mm - - 4.8 m/s - -
September - -6° - -2° -10° 98 mm - - 5.6 m/s - -
October - -13° - -7° -17° 63 mm - - 5.1 m/s - -
November - -14° - -7° -19° 63 mm - - 5.7 m/s - -
December - -13° - -6° -18° 73 mm - - 6.9 m/s - -
Getting There & Around

How to Get to Mount Redoubt

Mount Redoubt is remote and not served by public roads. Fly into Ted Stevens Anchorage International Airport, then arrange a small‑plane charter or air taxi to landing strips around Cook Inlet / the Lake Clark area; pilots and tour operators based in Anchorage and on the Kenai Peninsula offer flights for viewing and drop‑offs. Reaching the volcano itself requires air access or lengthy backcountry approaches on foot or by boat; there is no direct road access to the summit.

Tips for Visiting Mount Redoubt

  • Aim for early-morning flightseeing from Anchorage or Homer when winds are usually lighter and visibility is best - most visitors see Mount Redoubt by air rather than overland.
  • Book with an experienced bush-plane or glacier-flight operator that runs departures from Lake Hood/Anchorage or Homer; they know the safe viewing corridors and will position you for the best photographic angles.
  • Check the Alaska Volcano Observatory (AVO) for current activity alerts and ash advisories before planning a visit or flight; Redoubt is an active volcano and conditions can change rapidly.