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Oregon Editorial Composite October 15, 2025

Columbia Bar to Coos Bay: Hop-Scotching the Oregon Coast

The Oregon coast between Astoria and Coos Bay is 200 nautical miles of dramatic coastline — sea stacks, sand dunes, fishing harbors, and the most challenging bar crossings on the Pacific. This route account covers the 5-day passage south, with notes on every bar entry.

Route

Astoria → Coos Bay

Distance

200 nm

Duration

5 days

Vessel

40ft Valiant 40

Trip Report
Route highlights
  • September is the best month for Oregon coast passages — settled weather, fewer boats, open bars
  • Newport's bay is the most comfortable mid-coast stop — full services, protected anchorage
  • Tillamook Bay entrance is one of the more hazardous bars — rough in any swell over 8 feet
  • Winchester Bay sits between Newport and Coos Bay — useful overnight if the timing doesn't work
  • Coos Bay is the largest natural harbor between San Francisco and the Columbia River

The Oregon coast has a reputation. Among offshore sailors, it’s the passage you prepare carefully for and then discover was both harder and more beautiful than expected. The bars — Tillamook, Newport (Yaquina), Winchester Bay (Umpqua), Coos Bay — each requires its own forecast and its own crossing plan. The coastline between them is striking: sea stacks rising out of grey-green swells, fishing vessels working the tuna grounds 20 miles out, fog that sits on the water at 6 a.m. and burns off by noon.

September is the right month. The summer NW swell moderates. The long-range forecasts become more reliable. The bars behave. This account covers the standard 5-day route south from Astoria.

Day 1: Astoria — Preparing the Bar Crossing

The Columbia River Bar is not the first bar you cross on this passage; it’s the prologue. Boats doing the Oregon coast southbound typically spend a day in Astoria — the anchorage off the waterfront, or the guest dock at the Port of Astoria — watching the bar forecast and waiting for a window.

The bar routine: Call USCG Sector Columbia River on VHF 16 (they’ll shift you to 22A) and get the verbal bar report. Check the NOAA bar-specific forecast for zone PZZ450 — separate from the general coastal forecast and more accurate for the entrance conditions. Cross on a flood tide, in the morning, when bar height is below 4 feet and swell period is above 12 seconds.

Never cross the Columbia Bar on a strong ebb. River current plus ebb tide against a building SW swell can produce 20-foot breaking seas on the bar. USCG Sector Columbia River will advise against crossing in these conditions; listen to them.

The bar crossing itself — using the main South Channel, following the buoys — takes 30–45 minutes. Once past Buoy #1, you’re in the open Pacific. Turn south.

Day 2: Tillamook Bay / Garibaldi — 30 nm

Tillamook Bay is 30 nm south of the Columbia bar entrance — a half-day passage in favorable conditions. The town of Garibaldi at the north end of the bay has a public dock, fuel, and the Dungeness crab that the area is famous for.

Tillamook Bay entrance: The bar here is one of the more hazardous on the Oregon coast. The channel is well-marked but shallow (minimum 8 feet MLLW in the main channel) and subject to shifting. Check the NOAA bar forecast for the Tillamook entrance specifically.

Tillamook Bay bar: do not enter when swells exceed 8–10 feet. The bar closes to small craft in heavy swell. The USCG Tillamook station monitors conditions; call on VHF 16 before entry.

Inside the bar, the bay is broad and shallow — stay scrupulously in the marked channel. The anchorage near Garibaldi in 8–18 feet offers good holding in mud. The crab pots that ring the bay are a navigational consideration; a spotlight and a slow speed after dark.

Day 3: Newport (Yaquina Bay) — 80 nm

Newport is the central stop on the Oregon coast passage — a full-service port with a protected bay, complete marine services, excellent provisioning, and the Oregon Coast Aquarium next to the working waterfront. Most boats doing this passage spend two nights here.

Yaquina Bay entrance: The bar at Newport is one of the more benign on the Oregon coast — maintained by the Army Corps of Engineers, regularly dredged, and well-marked. Check conditions with USCG Station Yaquina on VHF 16. The entrance opens through the jetties, then the bay widens dramatically.

Newport anchorage and moorage: The bay has room for anchoring in 15–25 feet. South Beach Marina and Newport Marina both have transient slips. The bayfront — the working waterfront side, not the tourist side — has chandlery, a fish market, and seafood restaurants that serve what came off the boats that morning.

Newport note: The NOAA Pacific Marine Environmental Laboratory is based here; the Hatfield Marine Science Center on the bay’s south shore has a free public aquarium and exhibits on the Cascadia Subduction Zone — worth a visit if you have the afternoon.

Day 4: Winchester Bay — 50 nm

Winchester Bay (Umpqua River entrance) sits halfway between Newport and Coos Bay — a useful staging stop if the bar timing doesn’t work out for pushing all the way to Coos in one day. It’s a small sportfishing town with Salmon Harbor Marina, basic provisions, and the Oregon Dunes on its doorstep.

Umpqua River bar: Shifting shoals and rough conditions in any NW swell. The bar is considered more challenging than Newport and requires the same due diligence — NOAA forecast, USCG call, flood tide crossing.

The anchorage behind the south jetty is well-protected; 40-foot sand dunes are visible from the anchorage, an incongruous sight from the water.

Day 5: Coos Bay — 40 nm

Coos Bay is the destination. The largest natural harbor between San Francisco and the Columbia River, it has a navigable estuary 15 miles long, a working port (wood products, cattle, fishing), and complete marine services at Charleston Marina on the south arm.

Coos Bay entrance: The deepwater entrance is the most commercial of the Oregon coast bars — chip ships and container vessels use this port. The entrance is well-maintained and well-marked. Follow the shipping channel. USCG Station Coos Bay monitors continuously.

Charleston Marina is the recreational boat basin — excellent guest docks, showers, fuel, and a small town of marine chandleries and seafood restaurants. The Oregon Institute of Marine Biology is adjacent; shore walks along the Charleston waterfront give views back across the bay entrance to the sea.

From Coos Bay, southbound boats have two options: continue offshore to Crescent City (100 nm) and the California border, or wait for a weather window to round Cape Blanco (35 nm south) — Oregon’s westernmost point and notorious for accelerated wind and sea.


Plan your Oregon coast passage

Charter operators, marinas, and anchorages along the Oregon coast.