Oregon
Early morning is your best window — 4-5ft waves on WNW swell at 10s with strong S wind at 14mph.
Early morning is your best window — 4-5ft waves on WNW swell at 10s with strong S wind at 14mph.
Best window·Thursday 11AM–2PM·4-6ft·Good
Here's how the next 5 days are shaping up at Coos Bay, Oregon. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Thu, Sep 3: 4–6ft, 11s period, rated Poor. Midday is the call — 4-6ft waves with 15mph S winds and fair - good conditions. It's a bit wonky first thing but settles down.
Fri, Sep 4: 4–5ft, 10s period, rated Very Poor. Not the most exciting day — 4-5ft and very poor conditions with moderate SSW wind around 10mph. Expect the wind to bump up to around 14mph by PM.
Sat, Sep 5: 2–3ft, 9s period, rated Poor - Fair. First light looks cleanest — 2-3ft on WNW swell at 9s with gentle E breeze. Wind fills in through the day, pushing up to 14mph from the NNW and dropping conditions to very poor.
Sun, Sep 6: 1–2ft, 9s period, rated Poor. A slow one — 1-2ft waves and poor conditions with light SE winds. Afternoon breeze fills in to 8mph.
Mon, Sep 7: 1–2ft, 8s period, rated Poor. Dawn patrol is the move — 1-2ft on NW swell at 8s with gentle E breeze. Onshore flow builds through the day to 13mph, bringing conditions down to very poor.
Two days at a glance. Swipe for later hours.Five days at a glance. Drag for later hours.
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Check Coos Bay from the lineup
Forecasts, surf alerts, and live conditions in the Swell Intel iPhone app.
Coos Bay in Oregon offers a unique rivermouth break where the bay's outflow meets Pacific swells, creating shifty, sandbar-dependent peaks that can surprise even seasoned surfers. The spot faces ENE into the bay, meaning it picks up refracted and wrapped swell energy filtering in from the open Pacific, producing punchy, hollow sections when conditions align. The remote Oregon coast setting keeps crowds minimal, rewarding those willing to navigate the dynamic sandbars shaped by the bay's tidal currents.
Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.
The current wave height at Coos Bay is 4-5ft with a 10.8s swell period. Wind is S at 14mph. Conditions are rated Fair - Good. The forecast updates hourly so you can plan your session around the cleanest windows.
The current breaking wave height at Coos Bay is 4-5ft, produced by a 8.4ft WNW primary swell at 11s, a 4.9ft SSW wind swell swell at 7s, a 1.2ft SW tertiary swell at 12s, a 1.1ft SW tertiary swell at 17s. Breaking wave height is the actual rideable wave size at the shore — calculated from offshore swell data using this spot's coastal bathymetry — not the raw buoy reading.
Based on the current 5-day forecast, the best window to surf Coos Bay is Thursday from 11 AM to 2 PM with 5ft waves, a 10.9s swell period, and conditions rated Good. Check the hourly forecast for updates as conditions can shift.
Coos Bay works best with a W swell and E winds. Offshore winds groom the face of the wave, while onshore winds turn it sloppy. Cross-offshore conditions usually produce the cleanest shape.
Tide plays a big role at Coos Bay. Mid tide works for most beach breaks, while reef and point breaks often prefer higher or lower stages. Use the tide chart above to line up your session with the swell peak.
Coos Bay is a rivermouth with a sand bottom, suited to intermediate surfers. Coos Bay in Oregon offers a unique rivermouth break where the bay's outflow meets Pacific swells, creating shifty, sandbar-dependent peaks that can surprise even seasoned surfers. The spot faces ENE into the bay, meaning it picks up refracted and wrapped swell energy filtering in from the open Pacific, producing punchy, hollow sections when conditions align. The remote Oregon coast setting keeps crowds minimal, rewarding those willing to navigate the dynamic sandbars shaped by the bay's tidal currents.
The prime season at Coos Bay is fall, when swell direction, wind patterns, and water temps line up most consistently. Outside the peak season you can still score, but you'll need to watch the forecast closely for the right windows.
Common hazards at Coos Bay include strong currents, shifting sandbars, cold water, rip currents, heavy shipping traffic, unpredictable tidal flow. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.
Our Coos Bay forecast uses NOAA GFS and other weather models combined with spot-specific bathymetry to calculate breaking wave heights. Short-range (1-3 day) forecasts are most reliable; extended forecasts show general trends. We also verify our offshore swell predictions against NOAA buoy measurements daily — see our accuracy page for those swell-verification metrics (buoys measure open-water swell, not breaking surf size).
