Big Trout Lake

Lake Northern Ontario lake and nearby Indigenous community

Large, remote lake in northwestern Ontario known for trout fishing, canoeing and boreal wilderness. The nearby Indigenous community offers cultural context for visitors arriving by floatplane or long road routes.

Main image

Big Trout Lake is a large freshwater lake in northwestern Ontario, Canada, associated with a nearby First Nation community. The lake and its shores are part of a remote boreal-lake landscape used for fishing and local livelihoods.

The lake is fringed by forest and wetlands and is not a heavily developed recreational destination; most visitors arrive by floatplane or via the local airstrip serving the settlement. The nearest permanent settlement on the lake is the community commonly referred to as Big Trout Lake First Nation.

As a natural geographic feature it has no constructed history beyond local use by Indigenous peoples and later settlement activity; the area remains centred on local community life and resource use. Occasional scientific or recreational visits occur, but there is limited tourist infrastructure.

Big Trout Lake lies in the remote interior of northwestern Ontario within the Canadian Shield, surrounded by boreal forest and lakes and served primarily from regional air hubs rather than by long-distance road access.

  • Access: Remote northern Ontario lake primarily accessed by air year-round, with seasonal winter roads in some years; floatplanes are the common means of public access.
  • Use and facilities: The lake and its shores support subsistence fishing and local community activities rather than developed tourism infrastructure.

What to See #

  • Big Trout Lake First Nation: The community of Kitchenuhmaykoosib Inninuwug (often called Big Trout Lake First Nation) sits on the lake's north shore and is the main settlement associated with the lake.
Big Trout Lake
53.7835, -90.0072

How to Get to Big Trout Lake #

Access is typically by floatplane from larger hubs such as Sioux Lookout or by winter ice roads; public road access is limited. Charter flights and lodge transfers are the usual means of arrival.

Tips for Visiting Big Trout Lake #

  • If fishing, secure local permits and check seasonal restrictions-recreational rules apply to many northern Ontario lakes.
  • Pack for mosquitoes in summer and layers year-round-the weather can shift quickly on open water.
  • Use floatplanes for remote lodges and deeper access; charter flights are common in this region.

Best Time to Visit Big Trout Lake #

Best in summer for fishing and boating; winter is harsh and requires specialist equipment.

Summer
Jun-Aug · 10-25°C (50-77°F)
Prime for fishing, boating and remote-camp access.
Winter
Dec-Mar · -20--5°C (-4-23°F)
Lake freezes; suitable for winter travel only with local guidance.

Weather & Climate near Big Trout Lake #

Climate

Big Trout 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 -27°C to 20°C. Moderate rainfall (619 mm/year).

Temperature & Rainfall
Temperature Range
20°
Warmest Month
-27°
Coldest Month
Monthly Conditions

January

January is the coldest month with highs of -17°C and lows of -27°C. Light rainfall.

Comfort

-22°
Feels Like Freezing
-22°C
Temperature
-27° -17°

Weather

26 mm
Rainfall
3.4 m/s
Wind
Light Breeze

February

February is freezing with highs of -14°C and lows of -25°C. The driest month with just 21 mm.

Comfort

-19°
Feels Like Freezing
-19°C
Temperature
-25° -14°

Weather

21 mm
Rainfall
3.3 m/s
Wind
Light Breeze

March

March is freezing with highs of -6°C and lows of -19°C. Light rainfall.

Comfort

-12°
Feels Like Freezing
-12°C
Temperature
-19° -6°

Weather

28 mm
Rainfall
3.5 m/s
Wind
Light Breeze

April

April is freezing with highs of 3°C and lows of -9°C. Moderate rainfall (33 mm).

Comfort

-3°
Feels Like Freezing
-3°C
Temperature
-9°

Weather

33 mm
Rainfall
3.6 m/s
Wind
Light Breeze

May

May is cold with highs of 10°C and lows of -2°C. Moderate rainfall (44 mm).

Comfort

Feels Like Cold
C
Temperature
-2° 10°

Weather

44 mm
Rainfall
3.6 m/s
Wind
Light Breeze

June

June is cool with highs of 16°C and lows of 6°C. Moderate rainfall (72 mm).

Comfort

11°
Feels Like Cool
11°C
Temperature
16°

Weather

72 mm
Rainfall
3.5 m/s
Wind
Light Breeze

July

July is cool with highs of 20°C and lows of 10°C. The wettest month with 91 mm of rain.

Comfort

16°
Feels Like Cool
16°C
Temperature
11° 20°

Weather

91 mm
Rainfall
3.3 m/s
Wind
Light Breeze

August

August is cool with highs of 19°C and lows of 10°C. Regular rainfall (84 mm).

Comfort

15°
Feels Like Cool
15°C
Temperature
10° 19°

Weather

84 mm
Rainfall
3.4 m/s
Wind
Light Breeze

September

September is cold with highs of 13°C and lows of 5°C. Regular rainfall (84 mm).

Comfort

Feels Like Cold
C
Temperature
13°

Weather

84 mm
Rainfall
3.7 m/s
Wind
Light Breeze

October

October is cold with highs of 5°C and lows of -1°C. Moderate rainfall (58 mm).

Comfort

Feels Like Cold
C
Temperature
-1°

Weather

58 mm
Rainfall
3.9 m/s
Wind
Light Breeze

November

November is freezing with highs of -4°C and lows of -11°C. Moderate rainfall (48 mm).

Comfort

-8°
Feels Like Freezing
-8°C
Temperature
-11° -4°

Weather

48 mm
Rainfall
3.9 m/s
Wind
Light Breeze

December

December is freezing with highs of -14°C and lows of -22°C. Moderate rainfall (30 mm).

Comfort

-18°
Feels Like Freezing
-18°C
Temperature
-22° -14°

Weather

30 mm
Rainfall
3.5 m/s
Wind
Light Breeze

Nearby Attractions to Big Trout Lake