Whonnock Lake
MU 2-8, Lower Mainland
49.2125° N, 122.4481° W
- Surface area
- 51.6ha
- Maximum depth
- 10m
- 33 ft
- Elevation
- 172m
Peaceful municipal lake ideal for float tubes and small watercraft targeting spring-stocked rainbows.
Open Whonnock Lake in the appThe 7-day forecast, max depth and wildfire smoke check, on the lake's own coordinate.
Whonnock Lake at a glance
- Region
- Lower Mainland
- Management unit
- MU 2-8
- Species
- Rainbow Trout, Cutthroat Trout (last recorded 1995), Brook Trout (last recorded 1963), Kokanee (last recorded 1951), Coho Salmon, Steelhead (last recorded 1992), Black Crappie (last recorded 1995), Brown Catfish (formerly Brown Bullhead) (last recorded 1977)The newest of these fish records is from 2026.Species from the province's fish observation records.
- Lake size
- Medium Lake (50 - 500 ha)
- Ice fishing
- Open to ice fishing, confirmed
- Coordinates
- 49.2125, -122.4481
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Gear for rainbow trout
Lines, leaders, lures and flies for rainbow trout, searched on Amazon.ca.
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What people catch at Whonnock Lake
A shallow, weedy Maple Ridge lake stocked with catchable rainbows of 200 to 300 g, plus black crappie in the summer. Put and take fishing, best on light tackle, and rowing only.
- Rainbow Trout Stocked
Typically 200 to 300 g at release
Stocked spring and fall by the Freshwater Fisheries Society of BC.
Source: Fishing with Rod - Black Crappie Wild
Typically light tackle fish, best in the weedy shallows in summer
Source: Fishing with Rod
The rule that shapes it. No powered boats. Source: Province of British Columbia
Fish on record at Whonnock Lake
| Species | First recorded | Last recorded | Records |
|---|---|---|---|
| Rainbow Trout | 1958 | 2026 | 111 |
| Cutthroat Trout | 1951 | 1995 | 4 |
| Brook Trout | 1962 | 1963 | 2 |
| Kokanee | 1951 | 1951 | 1 |
| Coho Salmon | 1951 | 2008 | 4 |
| Steelhead | 1992 | 1992 | 1 |
| Black Crappie | 1979 | 1995 | 2 |
| Brown Catfish (formerly Brown Bullhead) | 1977 | 1977 | 1 |
A year is when the Province last recorded the fish here, not a statement that it is caught today.
How to fish Whonnock Lake
Casting spinners, float fishing, trolling micro-leeches along lily pad lines.
Best times of year at Whonnock Lake
- March - May
- October - November
Whonnock Lake fishing regulations
No powered boats. Source: Province of British Columbia
Getting to Whonnock Lake
Maple Ridge municipal park. Parking, boat launch, fishing dock.
2.8 km of traced road to the shore by way of Graham St, 112 Ave, 280 St, 116 Ave and 284 St. The road at the end is a paved surface. It stops 360 m short of the shore.
Coordinates: 49.2125, -122.4481
Depth chart for Whonnock Lake
10 mdeepest3.1 mmean
Whonnock Lake runs to 10 m (33 ft) at its deepest.
The mean of 3.1 m (10 ft) is read off the same chart, surveyed in September 1979.
The Province sounded Whonnock Lake and published the depth chart surveyed in 1979. It runs to 2 sheets.
The ice year at Whonnock Lake, modelled
Modelled from air temperature, not an ice report. It says nothing about whether ice will hold you.
In the model Whonnock Lake froze in 57 of the 65 winters since 1960. Freeze-up falls most years between 18 December and 17 January, and ice-off between 17 January and 13 March. The median winter freezes on 29 December and opens on 17 February.
the middle half of modelled winters the median ice cover in the median winter
Winter 2024-25 in the model: frozen from 1 February 2025 to 24 February 2025, 23 days.
Whonnock Lake is open to ice fishing under the regulations on file.
Whether a lake is open to ice fishing says nothing about whether its ice will hold you. Ice conditions vary year to year and across a single lake. Check locally before going out, every time.
Whonnock Lake climate, 1960 to 2025
Averaged over a year, the air above Whonnock Lake is 0.9 C warmer than it was in the 1960s. That is 66 years of daily readings, not a forecast.
- +0.9 Csince the 1960s
- 8.2 Caverage year now
- 7.3 Caverage year then
- -14 daysbelow freezing, change
each yearthe trend across 1960 to 2025
each yearthe trend across 1960 to 2025
This week at Whonnock Lake
The forecast on this lake's own coordinate, refreshed through the day. The app reads these seven days for fishing and scores each one.
| Day | Sky | High / low | Wind | Rain | Pressure |
|---|---|---|---|---|---|
| Tue 20 Oct | Clear sky | 16° / 8° | 8 km/h, gusts 17 | dry | Steady |
| Wed 21 Oct | Partly cloudy | 17° / 8° | 8 km/h | dry | Falling (-3.3 hPa) |
| Thu 22 Oct | Fog | 12° / 7° | 12 km/h | dry | Rising (+2.3 hPa) |
| Fri 23 Oct | Overcast | 12° / 4° | 9 km/h | dry | Rising (+7.9 hPa) |
| Sat 24 Oct | Moderate rain | 9° / 6° | 9 km/h, gusts 28 | 6 mm | Falling (-1.5 hPa) |
| Sun 25 Oct | Overcast | 17° / 6° | 10 km/h, gusts 20 | dry | Steady |
| Mon 26 Oct | Overcast | 18° / 7° | 9 km/h, gusts 15 | dry | Steady |
Whonnock Lake, in brief
What fish are in Whonnock Lake?
Rainbow Trout, Cutthroat Trout (last recorded 1995), Brook Trout (last recorded 1963), Kokanee (last recorded 1951), Coho Salmon, Steelhead (last recorded 1992). Species from the province's fish observation records.
Which management unit is Whonnock Lake in?
Whonnock Lake is in MU 2-8, in the Lower Mainland. The BC Freshwater Fishing Regulations Synopsis is organised by management unit; check it before you go.
Trout lakes near Whonnock Lake
- Hayward Lake 5 km away
- Rolley Lake 6 km away
- Devils Lake 9 km away
- Mike Lake 10 km away
- Cranberry Lake 14 km away
All 133 lakes in the Lower Mainland, with today's conditions on each.