What You'll Find in Similk Bay

Similk Bay is a shallow, productive estuary on Puget Sound's eastern shore, about 15 miles north of Everett in Skagit County. The bay holds Chinook and coho salmon during their migration windows, plus resident bottomfish year-round — primarily lingcod, rockfish, and flounder. The water is brackish near the river mouths and saltier toward the Sound, which creates distinct habitat zones. Tidal flats dominate much of the bay, so access and timing matter more here than in deeper Puget Sound waters.

The bay drains the Skagit River system, one of the largest salmon producers in the region. That freshwater input makes Similk Bay a staging area where salmon pause before heading upriver, and it concentrates them in predictable locations during the season. The shallow bottom also means you can fish effectively from small boats, kayaks, or the shore depending on tide and season.

Key Takeaways

  • Similk Bay holds Chinook and coho salmon during fall and early winter, with peak timing usually September through November depending on the run.
  • Lingcod, rockfish, and flounder are present year-round in deeper pockets and along channel edges, accessible most tides but best on higher water.
  • Tidal flats cover much of the bay, so you must plan launches and fishing windows around tide tables — low tide can leave boats stranded or make access impossible.
  • Public boat ramps exist at La Conner and Anacortes, both within 20 minutes of the bay, and shore access is available at several county parks.
  • Washington saltwater fishing regulations require a Puget Sound Salmon and Bottomfish license; check current season dates and catch limits before you fish.

Salmon Seasons and Timing

Chinook salmon enter Similk Bay from late August through October, moving through on their way to the Skagit River. Peak abundance usually falls in September and early October, though the exact timing shifts year to year depending on water temperature and river conditions. Coho follow in October and November, often lingering longer in the bay than Chinooks because they are less driven to reach the river immediately.

Both species respond to tide and light. Early morning and late afternoon are most productive, and incoming tides concentrate fish in the shallower parts of the bay as they move upriver. Jigging with small spoons or casting spinners near channel edges and around the river mouth works well. Trolling is less common here than in open Sound waters because the bay is narrow and shallow, but it can work in the deeper central channel during high tide.

Salmon fishing in Similk Bay is catch-and-release only for Chinook in most years, though coho seasons sometimes allow retention — check the current Washington Department of Fish and Wildlife (WDFW) Puget Sound Salmon and Bottomfish rules before you go. Regulations change annually and can shift mid-season if a run is stronger or weaker than expected.

Bottomfish Year-Round

Lingcod, rockfish, and flounder hold in Similk Bay throughout the year, making it a reliable option when salmon are not running. Lingcod are most abundant in fall and winter; they prefer rocky areas and channel edges where they hunt smaller fish. Rockfish — primarily quillback and copper — school in deeper pockets and along the bay's edges. Flounder (starry flounder and English sole) live on the sandy bottom in shallower areas and are easiest to target on slack tide when they are less likely to move.

Jigging with small shrimp flies or soft plastics works for lingcod and rockfish. Flounder respond to live bait — shrimp or small herring — fished on or near the bottom. Most bottomfish fishing happens in water 30 to 60 feet deep, which means you need a boat or kayak to reach the productive zones. The bay's tidal flats limit where you can fish at low tide, so plan your outing around tide tables.

Bottomfish seasons and catch limits vary by species and change annually. Lingcod, rockfish, and flounder all have specific daily limits and closure dates set by WDFW. Check the current Puget Sound Bottomfish rules before you fish — some species have short seasons or rotating closures to manage populations.

Access and Launch Points

La Conner Public Boat Ramp is the closest launch to Similk Bay, located at the mouth of the Swinomish Channel about 5 miles south. It has a two-lane concrete ramp, parking for about 30 vehicles, and restrooms. Launch fees are typically $10 per day, though rates vary seasonally. The ramp is usable at most tides, though low tide can make the approach shallow.

Anacortes offers several launch options, including the Anacortes Boat Launch (two lanes, parking, restrooms) and the Washington Park boat ramp (smaller, less crowded). Both are about 15 miles south of Similk Bay. Anacortes launches are more sheltered and have better facilities, but the extra distance means a longer run across open Sound to reach the bay.

Shore access is limited but available. Similk Bay County Park (also called Similk Beach Park) has a small parking area and beach access, though launching a boat from the beach is difficult because of the tidal flats. It works for kayak access at higher tides. Several other county parks and public beaches line the bay's edges; check Skagit County Parks for current access and parking details.

Tides, Weather, and Conditions

Tidal flats are the defining feature of Similk Bay. At low tide, large areas of mud and sand are exposed, which can trap boats or make launching impossible. Plan your outing so you launch and fish during higher water — typically the 2 hours before and 4 hours after high tide. Tide tables for Similk Bay are available through NOAA or most fishing apps; use the La Conner or Port of Anacortes reference stations as your guide.

Weather in this part of Puget Sound can change quickly. Fall and winter bring wind and rain; the bay is somewhat protected by land, but open-water swells can still make conditions rough. Check marine forecasts before you leave, and do not fish alone. The bay is shallow enough that hypothermia is a serious risk if you end up in the water.

Water clarity varies with tide and season. High freshwater input from the Skagit River during fall and winter can reduce visibility, making salmon harder to locate. Summer and early fall usually offer clearer water. Salinity also varies — the bay is nearly fresh near the river mouth and saltier toward the Sound, which affects where different species hold.

Regulations and Licensing

You need a Washington Saltwater Fishing License to fish Similk Bay. Licenses are sold online through the WDFW website, at sporting goods stores, and at many tackle shops. A one-day license costs less than a full-year license if you fish only occasionally. Licenses are required for anyone 16 and older.

Salmon and bottomfish have separate catch limits and season dates. Chinook are often catch-and-release only; coho may be retained depending on the year and run strength. Lingcod, rockfish, and flounder each have daily limits (typically 2 lingcod, 5 rockfish, and 10 flounder, though these change). Seasons can open and close mid-year if populations are stronger or weaker than forecast.

Check the current WDFW Puget Sound Salmon and Bottomfish rules before every trip. Regulations are updated annually and sometimes mid-season. The WDFW website has a searchable rules guide, and many tackle shops post current limits and seasons on their walls.

Tackle and Techniques

For salmon, bring small spoons (1 to 2 ounces), spinners, and jigging lures. Salmon in Similk Bay respond to movement and flash, especially in the lower-light conditions of early morning and late afternoon. Cast near channel edges and the river mouth, or jig vertically in deeper pockets. Fly fishing with small shrimp patterns or baitfish imitations works if you have a boat positioned over deeper water.

For bottomfish, jigging is the most effective method. Use small shrimp flies, soft plastics, or metal jigs in white, pink, or natural colors. For flounder, switch to live bait — shrimp or small herring — fished on or just above the bottom. A simple three-way rig with a sinker and short leader works well. Lingcod and rockfish respond to faster jigging; flounder prefer a slower, more deliberate presentation.

Bring a depth finder if you have one — it helps you locate channel edges and deeper pockets where fish concentrate. In a kayak or small boat, a portable fish finder is useful but not essential; you can also read the water and use landmarks to find productive areas.

Frequently Asked Questions

What is the best time of year to fish Similk Bay?

September through November is peak season for salmon. Bottomfish are present year-round, but fall and winter offer the most consistent fishing. Summer is slower for both salmon and bottomfish, though some coho and resident fish are always available.

Can I fish from shore at Similk Bay?

Shore access is limited. Similk Bay County Park offers beach access, but the tidal flats make it difficult to reach deeper water where fish hold. Kayak fishing from the beach at high tide is more practical than wading or casting from shore.

Do I need a boat to fish Similk Bay?

A boat or kayak is strongly recommended. Most productive fishing happens in water 20 to 60 feet deep, beyond what you can reach from shore. Kayaks work well for bottomfish in shallower areas; small motorboats are better for salmon because they cover more water and let you fish multiple locations in one tide.

What should I do if the tide is too low to launch?

Plan your outing around tide tables and launch during higher water — typically 2 hours before to 4 hours after high tide. If you arrive and the tide is too low, wait or return another day. Trying to launch or fish at very low tide risks getting stranded or damaging your boat on the flats.

Are there tackle shops near Similk Bay?

La Conner and Anacortes both have tackle shops within 15 minutes of the bay. They carry salmon and bottomfish tackle, sell licenses, and can provide current information on what is biting and where other anglers are finding fish.