Lesser Slave Lake

Lake Large Alberta lake, important migratory bird habitat

In north-central Alberta, Lesser Slave Lake is a long freshwater body edged by provincial parks, beaches and boreal forest. Seasonal visitors come for fishing, boating, birdwatching and camping near Métis and Cree communities.

Main image

Lesser Slave Lake is a large freshwater lake in north-central Alberta, Canada, and one of the province’s major inland lakes. It is an important regional feature for recreation, wildlife and local communities.

The shoreline includes provincial parks, campgrounds and boat launches that support fishing, boating and birdwatching; anglers target trout, pike and other freshwater species and boating is popular in summer. The lake’s wetlands and islands are used by migratory waterfowl and other birds, making parts of the shoreline and nearby bird observatories valuable for birdwatching.

Formed by glacial and post-glacial processes, the lake has long supported Indigenous use and later European settlement and recreational development. Over the 20th century provincial parks and conservation measures were established to manage recreation and protect shoreline habitats.

The lake lies in north-central Alberta; the town of Slave Lake is located on its northern shore and serves as the main service centre for visitors and residents. Surrounding terrain is boreal forest and wetland typical of the region.

  • Main access point: The town of Slave Lake sits on the lake's northern shore and is the main gateway for visitors, supplies and boat access.
  • Wildlife and activities: The lake is an important stopover for migratory waterfowl and is popular for boating and freshwater fishing, especially in spring and summer.

What to See #

  • Lesser Slave Lake Provincial Park: A provincial park on the lake's western shore offering lakeside campsites, trails and viewpoints over the water.
  • Hilliard's Bay Provincial Park: A smaller provincial park on the lake's northwest shore with camping and day-use facilities and access to shoreline trails.
Lesser Slave Lake
Lesser Slave Lake, Alberta, Canada
55.4406, -115.4886
Open outdoors year-round
Free (natural feature); associated provincial parks may charge for camping/activities

How to Get to Lesser Slave Lake #

Lesser Slave Lake is accessed by road to the town of Slave Lake on the lake’s southern shore. From Edmonton it is roughly a 3‑hour drive northwest (about 240 km) via Alberta provincial highways to Slave Lake, which is the main gateway with parking, boat launches and visitor services; from there local roads and boat ramps provide access around the lake. Regional bus services are limited - check schedules for connections to nearby towns.

Tips for Visiting Lesser Slave Lake #

  • Choose early morning or late-afternoon visits for calm water, better light for photography and active wildlife along the shores; shorebird and waterfowl activity spikes around migration periods in spring and fall.
  • Use the provincial park day-use areas (Lesser Slave Lake Provincial Park and Hilliard's Bay Provincial Park) as primary access points-each park has different facilities (beaches and campsites at Hilliard's Bay; trails and viewpoints at the main provincial park) so pick the one that matches your plans.
  • Avoid weekend and July long-weekend peak crowds by visiting on weekdays or in shoulder seasons (late spring or early fall) when camping and day-use areas are quieter and roads around the lake are less busy.

Best Time to Visit Lesser Slave Lake #

Summer (June-August) is best for warm-weather lake activities; winters are very cold and the lake often freezes.

Summer (best)
June-August · 10-25°C
Warmer, long daylight hours for boating, fishing and hiking; mosquitoes can be present.
Winter
December-February · −25 to −5°C
Very cold; the lake and surrounding water bodies often freeze, popular for winter activities but extreme cold and snow are common.
Shoulder seasons
April-May & September-October · 0-15°C
Cool and variable - good for quieter visits, but weather can change quickly and some services are reduced.

Weather & Climate near Lesser Slave Lake #

Climate

Lesser Slave Lake's climate is classified as Warm-Summer Continental - Warm-Summer Continental climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -22°C to 22°C. Semi-arid with limited rainfall.

Temperature & Rainfall
Temperature Range
22°
Warmest Month
-22°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -10°C and lows of -22°C. Light rainfall.

Comfort

-16°
Feels Like Freezing
-16°C
Temperature
-22° -10°

Weather

27 mm
Rainfall
3.3 m/s
Wind
Light Breeze

February

February is freezing with highs of -5°C and lows of -18°C. The driest month with just 19 mm.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-18° -5°

Weather

19 mm
Rainfall
3.3 m/s
Wind
Light Breeze

March

March is freezing with highs of 1°C and lows of -12°C. Light rainfall.

Comfort

-6°
Feels Like Freezing
-6°C
Temperature
-12°

Weather

22 mm
Rainfall
3.3 m/s
Wind
Light Breeze

April

April is cold with highs of 9°C and lows of -4°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
-4°

Weather

20 mm
Rainfall
3.4 m/s
Wind
Light Breeze

May

May is cold with highs of 14°C and lows of 2°C. Moderate rainfall (40 mm).

Comfort

Feels Like Cold
C
Temperature
15°

Weather

40 mm
Rainfall
3.3 m/s
Wind
Light Breeze

June

June is cool with highs of 19°C and lows of 7°C. The wettest month with 90 mm of rain.

Comfort

13°
Feels Like Cool
13°C
Temperature
19°

Weather

90 mm
Rainfall
3.1 m/s
Wind
Light Breeze

July

July is cool with highs of 22°C and lows of 10°C. Regular rainfall (85 mm).

Comfort

16°
Feels Like Cool
16°C
Temperature
10° 22°

Weather

85 mm
Rainfall
2.8 m/s
Wind
Calm

August

August is cool with highs of 21°C and lows of 10°C. Moderate rainfall (64 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 21°

Weather

64 mm
Rainfall
2.8 m/s
Wind
Calm

September

September is cool with highs of 16°C and lows of 5°C. Moderate rainfall (52 mm).

Comfort

10°
Feels Like Cool
10°C
Temperature
16°

Weather

52 mm
Rainfall
3.0 m/s
Wind
Light Breeze

October

October is cold with highs of 10°C and lows of 0°C. Light rainfall.

Comfort

Feels Like Cold
C
Temperature
10°

Weather

25 mm
Rainfall
3.4 m/s
Wind
Light Breeze

November

November is freezing with highs of 0°C and lows of -9°C. Light rainfall.

Comfort

-5°
Feels Like Freezing
-5°C
Temperature
-9°

Weather

22 mm
Rainfall
3.2 m/s
Wind
Light Breeze

December

December is freezing with highs of -8°C and lows of -19°C. Light rainfall.

Comfort

-14°
Feels Like Freezing
-14°C
Temperature
-19° -8°

Weather

27 mm
Rainfall
3.3 m/s
Wind
Light Breeze

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