Tustumena Lake

Lake Large glacier-fed lake on Alaska's Kenai Peninsula

A large glacial lake on Alaska’s Kenai Peninsula, accessed by boat and floatplane; anglers, hunters and backcountry campers use it as a base for remote recreation.

Main image

Tustumena Lake is a long glacially influenced lake on the Kenai Peninsula in southern Alaska, notable for its length and remote shoreline.

The lake offers wide open water views, fishing opportunities, and access points used by locals and backcountry visitors; shore access can be limited and conditions change seasonally. Boating and shoreline recreation are the most common activities where access allows.

The lake and surrounding area have been used historically by local Indigenous communities and later by residents and recreational users on the Kenai Peninsula; the name reflects local linguistic origins.

Located on the southern Kenai Peninsula in Alaska, the lake lies inland from the Gulf of Alaska and is accessed from roads and trails that cross the peninsula.

  • Size: One of the larger lakes on the Kenai Peninsula, stretching roughly 25 miles (about 40 kilometres) in length.
Tustumena Lake
60.1836, -150.8709

How to Get to Tustumena Lake #

Tustumena Lake lies on the Kenai Peninsula, Alaska. Access to the Kenai Peninsula is by road via the Sterling Highway (Alaska Route 1); from towns such as Homer or Kasilof you can reach trailheads and lakeshore access roads by car where available. Much of Tustumena Lake country is remote and is commonly reached by boat or floatplane from Homer or other Kenai Peninsula hubs-plan water or air transfer in advance.

Best Time to Visit Tustumena Lake #

Visit in summer (June-August) for the easiest access, milder weather and best conditions for outdoor activities.

Summer (best for access and boating)
June-August · 5-15°C
Milder temperatures, long daylight, and the most reliable access for boating, fishing and hiking around the lake.
Shoulder seasons
May and September · -5-5°C
Unpredictable conditions with possible snow or cold snaps; some facilities or roads may still be partially closed.
Winter
October-April · -10-0°C
Cold, long winters with snow and ice-many activities and access routes are limited or require winter equipment.

Weather & Climate near Tustumena Lake #

Climate

Tustumena Lake's climate is classified as Subarctic (Dry Summer) - Subarctic (Dry Summer) climate with cool summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -10°C to 17°C. Moderate rainfall (816 mm/year).

Temperature & Rainfall
Temperature Range
17°
Warmest Month
-10°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -2°C and lows of -10°C. Moderate rainfall (73 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-10° -3°

Weather

73 mm
Rainfall
2.3 m/s
Wind
Calm

February

February is freezing with highs of -1°C and lows of -10°C. Moderate rainfall (61 mm).

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-10° -1°

Weather

61 mm
Rainfall
2.3 m/s
Wind
Calm

March

March is freezing with highs of 2°C and lows of -7°C. Moderate rainfall (52 mm).

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-7°

Weather

52 mm
Rainfall
2.6 m/s
Wind
Calm

April

April is cold with highs of 7°C and lows of -2°C. Moderate rainfall (35 mm).

Comfort

Feels Like Cold
C
Temperature
-2°

Weather

35 mm
Rainfall
2.6 m/s
Wind
Calm

May

May is cold with highs of 11°C and lows of 2°C. Moderate rainfall (37 mm).

Comfort

Feels Like Cold
C
Temperature
11°

Weather

37 mm
Rainfall
2.7 m/s
Wind
Calm

June

June is cool with highs of 15°C and lows of 6°C. Moderate rainfall (34 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
15°

Weather

34 mm
Rainfall
2.8 m/s
Wind
Calm

July

July is cool with highs of 17°C and lows of 9°C. Moderate rainfall (45 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
17°

Weather

45 mm
Rainfall
2.5 m/s
Wind
Calm

August

August is cool with highs of 17°C and lows of 9°C. Moderate rainfall (78 mm).

Comfort

13°
Feels Like Cool
13°C
Temperature
17°

Weather

78 mm
Rainfall
2.3 m/s
Wind
Calm

September

September is cold with highs of 14°C and lows of 5°C. The wettest month with heavy rain (121 mm).

Comfort

Feels Like Cold
C
Temperature
14°

Weather

121 mm
Rainfall
2.4 m/s
Wind
Calm

October

October is cold with highs of 7°C and lows of 0°C. Significant rainfall (112 mm).

Comfort

Feels Like Cold
C
Temperature

Weather

112 mm
Rainfall
2.4 m/s
Wind
Calm

November

November is freezing with highs of 2°C and lows of -6°C. Moderate rainfall (79 mm).

Comfort

-2°
Feels Like Freezing
-2°C
Temperature
-6°

Weather

79 mm
Rainfall
2.3 m/s
Wind
Calm

December

December is freezing with highs of -1°C and lows of -8°C. Regular rainfall (89 mm).

Comfort

-4°
Feels Like Freezing
-4°C
Temperature
-8° -1°

Weather

89 mm
Rainfall
2.2 m/s
Wind
Calm

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