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Fishing Onion Lake: what the data says
13-acre lake in British Columbia. The lake tops out around 65 ft. Contours on this water are modeled from its actual shoreline and max depth. Good for finding likely water, never for navigation. What the data behind the map says about each species, season by season:
The drawn water covers 13 acres wrapped in 0.6 miles of bank. The basin is a simple one (shoreline index 1.2) — close to a bowl, so the structure on the chart matters more than the bank. About 18% of the surface sits shallower than 15 ft on the modeled chart — that's the weed-and-bait zone.
Kokanee fishing at Onion Lake
When the water first warms, kokanee slide up into 10 to 30 ft. By summer they slide out to 20 to 65 ft, and by winter most fish are in 16 to 65 ft. If you only fish one area, make it Deep basin: a deep basin around 55 ft that scores prime in summer. In summer the feeding windows fall in early morning. Keep a dodger + pink/orange squid on downrigger or a kokanee bug + corn rigged through the warm months.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 10 to 30 ft | dawn | Break off the point (29 ft) | Small dodger + squid (pink), Wedding-ring spinner + corn |
| Summer | 20 to 65 ft | dawn | Deep basin (55 ft) | Dodger + pink/orange squid on downrigger, Kokanee bug + corn |
| Fall | 5 to 40 ft | dawn | Break off the point (29 ft) | Dodger + squid (deeper red/purple), Small spoon |
| Winter | 16 to 65 ft | dawn | Deep basin (55 ft) | Small glow jig + corn or maggot, Tiny spoon |
Steelhead fishing at Onion Lake
The spring pattern is a shallow one: steelhead in 3 to 20 ft. Midsummer fish sit out in 5 to 45 ft before dropping to 4 to 15 ft for winter. The spot to know is Deep basin, a deep basin in about 55 ft of water that rates prime for steelhead in summer. Plan around early morning and the evening in the warm months. Summer baits: a orange dodger + fly high in the column or a thin spoon off boards gets it done.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 3 to 20 ft | dawn & dusk | Main-lake point (16 ft) | Small spoon or spinner at the mouths, Jig + waxworm under float |
| Summer | 5 to 45 ft | dawn & dusk | Deep basin (55 ft) | Orange dodger + fly high in the column, Thin spoon off boards |
| Fall | 5 to 30 ft | dawn & dusk | Break off the point (29 ft) | Spinner (silver/blue), Casting spoon |
| Winter | 4 to 15 ft | midday | open water | Float jig (black/purple), Bead rig |
Rainbow Trout fishing at Onion Lake
Come spring, look for rainbow trout tight to the bank in 5 to 20 ft. Expect a summer slide to 8 to 30 ft, then a winter hold in 8 to 40 ft. Start at Break off the point. It's a drop-off holding about 29 ft of water and rates prime come winter. Prime time lands in early morning and the evening. A dodger + spoon (deep troll) or a flutter spoon is the honest summer answer here.
| Season | Depth | Best window | Start at | Go-to baits |
|---|---|---|---|---|
| Spring | 5 to 20 ft | dawn & dusk | Main-lake point (16 ft) | Inline spinner (silver), Small spoon |
| Summer | 8 to 30 ft | dawn & dusk | Break off the point (29 ft) | Dodger + spoon (deep troll), Flutter spoon |
| Fall | 10 to 35 ft | dawn & dusk | Main-lake point (16 ft) | Casting spoon, Jerkbait over shoals |
| Winter | 8 to 40 ft | dawn | Break off the point (29 ft) | Jigging spoon, Tube jig (white) |
Notable structure
- Deep basin: deep basin, around 55 ft
- Break off the point: drop-off, around 29 ft
- Main-lake point: point, around 16 ft
Onion Lake fishing regulations
Season dates, license requirements, and size and bag limits for British Columbia waters are set by the BC freshwater fishing synopsis — and special regulations can apply to Onion Lake specifically, so confirm the current rules before you fish.
Check the official British Columbia fishing regulations →
Common questions
How deep is Onion Lake?
Onion Lake is about 65 ft (20 m) deep at its deepest point. The contours here are modeled from the water's real shape and maximum depth, so treat them as a rough guide.
What fish are in Onion Lake?
Anglers target rainbow trout, steelhead, kokanee on Onion Lake.
Where is the best fishing spot on Onion Lake?
Deep basin is the top-rated area: a deep basin in about 55 ft of water that rates prime for kokanee in summer. Open the map above to see every rated spot for each species and season.
When is the best time to fish Onion Lake?
For kokanee, the summer bite is best in early morning. Each species page section below lists the seasonal windows, and the map shows a live NOW badge when you're inside one.
What are the fishing regulations for Onion Lake?
Fishing on Onion Lake is regulated by the BC freshwater fishing synopsis. Check the official British Columbia regulations for current license requirements, season dates, and size and bag limits — special regulations can apply to this specific water.
Nearby waters
Lakelse Lake 5 mi · Herman Lake 7 mi · Pine Lake 22 mi · Kleanza Lake 27 mi · Treston Lake 28 mi · Redsand Lake 29 mi · Alastair Lake 30 mi · Jesse Lake 33 mi · Kitsumkalum Lake 34 mi · Burnie Lakes 37 mi · Burnie Lakes 38 mi · Shea Lake 39 mi
See how Onion Lake stacks up: best rainbow trout lakes in British Columbia · best steelhead lakes in British Columbia · best kokanee lakes in British Columbia
Browse all British Columbia fishing maps or see every water on DepthScout. How we build these maps. For fishing guidance only, never navigation.