Lake Mistassini

Lake

Quebec's largest natural lake, visited for sport fishing, canoeing and wilderness camping; outfitters run guided angling trips and lodges serve anglers and paddlers exploring the boreal shoreline.

Lake Mistassini MontrealQuebec CityGatineauLaval, QuebecTrois-RivièresSherbrookeLongueuilSaguenay, QuebecLake Mistassini
In this guide

Lake Mistassini essentials

Country: Canada
Driest months: Feb-Apr
Pay in: Dollar ($)
Language: French, English

Lake Mistassini at a Glance

About Lake Mistassini

Lake Mistassini is the largest natural lake in the province of Quebec, Canada. It is a major freshwater body in central-northern Quebec and an important site for Indigenous communities.

The lake offers extensive shoreline for fishing, canoeing and wilderness recreation, with several sheltered bays and islands used as campsites. Local Cree communities on the lake provide limited visitor services and cultural access points for guided fishing and boat trips.

The lake and its basin have long been used by Cree peoples for fishing, hunting and transportation. European fur trade and later mapping and resource-use activities reached the area in the 18th and 19th centuries, but the lake has remained a center for local Indigenous livelihoods.

Lake Mistassini sits in central-northern Quebec within the province’s boreal zone; the Cree community of Mistissini lies on its shore. The lake is remote from major urban centers and is accessed by regional roads and by air services to nearby communities.

  • Access and nearby communities: Seasonal and year-round access is often by road and by floatplane; several Cree communities, including Mistissini, lie on or near the lake shore and provide local services.
  • Fishing: Important freshwater fishery with populations of lake trout, northern pike and whitefish-popular for angling and subsistence fishing.

Tips for Visiting Lake Mistassini

  • Lake Mistassini is Quebec's largest natural lake-access is typically through the Cree community of Mistissini or via Chibougamau; organize transport and permits through local operators.
  • Book fishing lodges or guides well in advance for summer visits; many best fishing and remote-shore spots are on licensed outfitter territory and require prior arrangements.
  • Combine lake time with visits to Mistissini community facilities to learn about Cree culture-many visitors miss the locally run cultural and guiding services that enrich the trip.
When to Go

Best Time to Visit Lake Mistassini

Visit in summer (June-August) for the warmest weather and easiest access to Lake Mistassini's recreational opportunities.

Summer
June-August · 15-25°C
Warm months are best for fishing, boating and accessing lakeside campgrounds.
Shoulder seasons
May, September · 0-15°C
Cooler and less crowded; suitable for shore-based activities and wildlife viewing.
Winter
November-April · -30--10°C
Very cold and snow-covered; the lake is frozen for much of the season and access can be difficult.

Weather & Climate near Lake Mistassini

Climate

Lake Mistassini's climate is classified as Subarctic - Subarctic climate with cool summers (peaking in August) and freezing winters (coldest in January). Temperatures range from -25°C to 18°C. Moderate rainfall (958 mm/year).

Air Quality: AQI 18 Good
Temperature & Rainfall
Temperature Range
18°
Warmest Month
-25°
Coldest Month
Monthly Conditions
Month Comfort Temp Feels Rain Sky Humidity Wind UV Daylight
January - -25° - -14° -26° 70 mm - - 2.4 m/s - -
February - -25° - -12° -25° 63 mm - - 2.6 m/s - -
March - -18° - -5° -17° 53 mm - - 2.7 m/s - -
April - -8° - 3° -6° 44 mm - - 2.9 m/s - -
May - -2° - 9° 1° 67 mm - - 2.9 m/s - -
June - 3° - 14° 7° 92 mm - - 3.0 m/s - -
July - 8° - 18° 13° 108 mm - - 2.7 m/s - -
August - 9° - 18° 14° 114 mm - - 2.8 m/s - -
September - 5° - 13° 7° 100 mm - - 3.0 m/s - -
October - 0° - 7° 1° 70 mm - - 3.0 m/s - -
November - -7° - 0° -7° 84 mm - - 3.0 m/s - -
December - -17° - -7° -17° 93 mm - - 2.4 m/s - -