Spring Chinook Running Hot at Oregon's Columbia River Mouth

What's Biting

What's Next

Offshore seas are running 5–6 feet this week — buoy 46002 logged 5.9 ft with 7 m/s northwest winds, and buoy 46050 shows 5.2 ft with 3 m/s — keeping most small-boat anglers off the exposed outer coast. The best strategy right now is to position near protected river mouths and estuary approaches where the salmon bite is most accessible. The Columbia River mouth, with its established Buoy 10 fishery near Astoria, is the natural focal point.

The waning crescent moon phase means pre-dawn departures benefit from low ambient light — historically a prime window for spring chinook, which tend to bite more aggressively in low-light conditions. Saltwater Sportsman's Buoy 10 feature confirms what veteran Oregon guides already know: first light, when fish are stacked at the river mouth, is the peak timing window worth protecting.

Watch the buoy network closely over the next 48–72 hours. If northwest winds at buoy 46002 ease below 4 m/s and swell drops toward the 3-foot range, that's the signal to make a move toward the nearshore rockfish and halibut grounds south of the Columbia. Sandy flats in 20–50 fathoms are prime spring halibut habitat; bait rigs worked on or near bottom are the standard approach. Check current Oregon regulations for exact halibut retention dates and area-specific limits before running offshore — those windows can open and close quickly with quota updates.

Coho and chinook should remain active through late May. If water temps drift down from the current 56–57°F range toward 53–54°F — a common result of northwest upwelling events — expect the salmon bite to go deeper and slower at the surface, requiring heavier gear and deeper presentations to stay in the zone. Conversely, if temps hold or tick upward, surface and near-surface trolling remains effective near the river mouth.

Weekend anglers should prioritize Saturday morning if northwest winds settle overnight. The combination of waning crescent low-light, actively feeding chinook, and potentially easing swell makes this weekend worth planning around — pull Friday evening buoy readings before committing to an early launch.

Context

Mid-May on the Oregon Coast typically marks the active phase of spring chinook season, with fish stacking at river mouths — particularly the Columbia — as they stage for their inland migration. Water temps in the 56–57°F range recorded by our buoy network are consistent with seasonal norms for this time of year; spring chinook prefer cool, well-oxygenated water and generally arrive at the Columbia mouth in earnest between late April and early June.

The Buoy 10 fishery near Astoria described in Saltwater Sportsman is one of the most reliably timed seasonal windows on the West Coast, running on an annual clock: spring chinook first, then summer chinook, then coho as fall approaches. The pre-dawn armada of river sleds converging at the river mouth is a scene that plays out every May on schedule. By all available signals, this year appears on track.

Offshore, 5–6 foot seas in mid-May are not unusual for the Oregon Coast. Spring marks the onset of upwelling season, driven by persistent northwest winds that push surface water offshore and pull cold, nutrient-rich water up from depth. These upwelling events create productive rockfish and halibut habitat but periodically close the offshore window for smaller boats. The pattern — rough days punctuated by brief calm windows — is the normal Oregon Coast spring rhythm, not an anomaly.

No year-over-year comparative data arrived from Oregon charter captains or tackle shops in this reporting cycle, limiting more precise early-vs.-late assessments. For a useful regional parallel, Western Outdoor News — Saltwater notes that salmon conditions improved markedly off Half Moon Bay once water temps settled around 54°F — suggesting that the 56–57°F readings here place Oregon Coast waters squarely in the productive range. On balance, this looks like a standard mid-May Oregon Coast setup: spring salmon active at the river mouth, rocky-shore species seasonally available, and offshore trips weather-dependent.