Best fishing spots on boat at Lake Washington around mercer island?

Question

FishGPT · Accepted Answer

**Best boat spots around Mercer Island on Lake Washington**

If you’re chasing bass on a boat around Mercer Island, you’re chasing structure, depth transitions, and baitfish. Lake Washington is a big, variable system, but fall patterns tend to lock onto predictable features where the lake drops from shallow to mid-depth. Here’s a solid plan tailored for a boat angler around Mercer Island this early fall. 🎣

**Key areas to search (by structure and depth):**
- **East Channel drop-offs and rock edges:** Start along Mercer Island’s east shoreline where the water drops from 10–15 ft down to 30–40 ft. Look for abrupt breaks, boulder fields, and weed edges. These spots attract both largemouth and smallmouth when the sun heats the shallows during the day, and they’re excellent to bounce a swimbait or a football jig on a slow crawl. 
- **North-to-center channel near I-90 vicinity:** The channel edges around the north end of the island often hold active bass on 20–40 ft structure. Work points that jut into the channel and any suspected humps or rock piles. 
- **South-end coves and the western shoreline:** Scout sheltered pockets with ledges dropping into the 15–35 ft range; bass often stage on the inside edges of these coves and along dock lines, especially on cloudy mornings. 
- **Rocky points and weed lines near coves around Medina/Bellevue corridors:** Look for weed patches meeting rock, especially where wind pushes baitfish toward the shore.

**Tackle and pattern suggestions (fall-friendly):**
- For bass on rock and ledge: **football jig with a craw trailer** or a **mid-weight swimbait** (4–5 inches) to stay in the strike zone as the day warms. 
- For deeper bites and finesse: **dropshot or NED rig** with a small soft plastic around 15–25 ft when the water is cooler and fish are finicky. 
- Moving baits for shad/bluegill schools: **lipless crankbaits and shallow cranks** around 10–25 ft on slow retrieves. 
- If you’re targeting smallmouth on rocky humps: a **finesse tube or tube jig** can excel, especially in 15–30 ft with a steady hop-and-drag cadence.

**Weather note (early fall):** Cool mornings and warming afternoons mean fish ride the depth edge differently day to day. When a front passes, bass often pull to deeper structure and hit more slowly. When the sun is up, you’ll see better activity on the 20–40 ft breaks. A quality sonar or map with depth shading helps you identify those subtle ledges and humps quickly.

**Weather-specific tip:** On a clear, calm fall morning, start with shallower presentations (12–25 ft) near rocky points, then slide deeper (25–40 ft) as the sun climbs and fish pull off the edges. If winds pick up from the west or northwest, work along weed lines and drop-offs where baitfish are pushed into pockets.

**Seasonal weather summary (early fall):** Expect cooler mornings (50s–60s F) and mild highs in the 60s–70s, with occasional showers and gusty winds. Water temps are cooling from summer highs, tightening bass onto structure and bait. Have a plan for both clear-skies and wind-driven days, and be ready to switch depths and baits quickly.

Pro tips: map out a few go-to spots on Mercer Island’s east and north shores, then spend 10–15 minutes probing each with a same-pattern approach. Use a high-quality swimbait or jig in a predictable depth window, and stay mobile to chase feeding waves as fronts pass. Tight lines and good days are ahead! 💪🐟

For visual patterns and spots to scout, check these videos: [Brief video from Lake Washington, just off Mercer Island](https://www.youtube.com/watch?v=D2EXq2gbhKk), [Washington's Top 10 Fishing Spots](https://www.youtube.com/watch?v=1PNCCT8CXnk), [Finding Shore Fishing Spots in Washington](https://www.youtube.com/watch?v=coHGN2ji_5U), [Lake Washington - Boat Day Trip](https://www.youtube.com/watch?v=YXInbQpZWlI)

Gear ideas from the pros: [Ugly Stik GX2 Spinning Reel and 6' Rod Combo](https://www.amazon.com/dp/B0D1537STT?tag=tacklenet-20&linkCode=osi&th=1&psc=1), [KastKing Royale Legend II Spinning Combos](https://www.amazon.com/dp/B0CMD2PBMY?tag=tacklenet-20&linkCode=osi&th=1&psc=1)

Keep moving, stay versatile, and you’ll find the bite around Mercer Island sooner than you think. Tight lines! 🏈🎣

🎣 Lake Washington (Mercer Island area)

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