September Searun Cutthroat Report: Trask River Estuary Float
This past week marked the last of my 30s — a decade I've largely dedicated to fly fishing. It seemed fitting to close things out with one of my favorite annual late-summer traditions: a tidewater float through the Trask River estuary near Tillamook, Oregon.
How We Fish the Trask Estuary for Searun Cutthroat
This float, which I run with clients on select dates when the tides align for an early-morning launch, typically starts and ends at the same spot: Carnahan Park, the last Trask River boat launch above Tillamook Bay. We put in on an incoming tide, fish our way upstream, then retrace the float downstream when the tide reverses. It's a reliable, repeatable pattern that consistently produces fish when the timing is right.
Each year, just to make sure we aren't leaving pods of eager fish untouched higher in the system, I like to attempt this as a more traditional float — starting at Steiner Boat Launch upstream and ending at Carnahan as the tide begins to run back out. The first few hundred yards above the tidal influence run shallow this time of year; typically too skinny for anything larger than a raft or kayak.
On the Water: This Week's Float
My fishing partner Zack and I met at Carnahan, dropped a car for the self-shuttle, and drove upstream to Steiner. Within a half hour, we were geared up and on the water. We scraped through a shallow riffle just below the ramp and were pleasantly surprised to find a strong current pushing us downstream. A deeper riffle produced the first action of the day — a solid sea run darting out of fast water to snap at Zack's hand-tied crawdad pattern.
As we worked into the tidewater section, the current slowed, and the water warmed. We fished diligently through it — casting under overhanging trees, working structure, probing every seam — but found little interest. The fish seemed to be either upstream in cooler, faster water or downstream, where twice-daily tidal exchange pulls cold water in from the bay. We pushed on, and soon crossed paths with a motorboat carrying two spin anglers.
I'd hoped they were targeting salmon, but one look at the light gear and small spoons confirmed they were also after searuns — and keeping them. The water we'd be floating through for the next two hours had already been worked over and disturbed. As expected, we didn't find many more fish beyond a handful of fingerlings.
Zack came the closest we'd get all day, hooking a solid foot-long fish that threw the hook just a few feet from the boat. As we neared Carnahan, the wind kicked up hard, making it difficult to maneuver into position and even harder to cast.
Searun Cutthroat Migration: What Actually Triggers It?
This day contrasted with the week before, when I fished well upstream and found multiple large sea runs already cruising freshwater. It reinforced a theory I've been sitting with for a while: searun cutthroat migration isn't primarily triggered by rainfall — it's driven by water temperature.
Despite low water levels, this summer has been unusually mild on the Oregon coast. Cool, consistent temperatures may be pushing fish into fresh water earlier than the calendar would suggest. If this theory holds, we could be looking at an early peak to this year's searun run.
Oregon Coast Searun Cutthroat Outlook: Plan Accordingly
If you're planning a fall searun trip to the Trask, Tillamook Bay tributaries, or other Oregon coast tidewater systems, don't wait for the first rains to book your dates. The fish may already be moving. Dial in your tides, watch the water temperatures, and get out early in the season.
We offer guided tidewater floats for searun cutthroat on select dates through the fall. Contact us to check availability or book your spot for this season.