Oregon
Here's how the next 5 days are shaping up at Winchester Bay, Oregon. Each day is rated based on breaking wave height, swell period, and wind — updated hourly from the latest NOAA GFS run.
Sun, May 10: 4–5ft, 11s period, rated Poor - Fair. Not the most exciting day — 4-5ft and poor - fair conditions with 9mph NNW winds.
Mon, May 11: 5–6ft, 11s period, rated Poor - Fair. Early morning is your best window — 5-6ft waves on W swell at 11s with 7mph from the NE. Onshore flow builds through the day to 14mph, bringing conditions down to poor.
Tue, May 12: 4–5ft, 11s period, rated Fair. Dawn patrol is the move — 4-5ft on W swell at 11s with glassy conditions. Onshore flow builds through the day to 10mph, bringing conditions down to fair.
Wed, May 13: 4–5ft, 13s period, rated Fair. Get out early for the best of it — 4-5ft waves on W swell at 11s and glassy conditions. The W wind kicks in by afternoon — 9mph and poor - fair by then.
Thu, May 14: 4–5ft, 12s period, rated Poor - Fair. Not the most exciting day — 5-6ft and poor - fair conditions with light winds out of the SSW. Expect the wind to bump up to around 9mph by PM.
Free, simple, and takes 30 seconds.
Winchester Bay is a rivermouth break located on the Oregon coast where the Umpqua River meets the Pacific Ocean, offering sandbars that shift with river flow and tidal influence to produce punchy, hollow waves. The spot faces southeast toward the ocean, picking up Northwest swells that wrap around the river mouth and break over sand formations shaped by the river's outflow. This uncrowded gem rewards patient surfers with quality peaks, especially during fall when Oregon's swell season kicks in and offshore winds are most consistent.
Wave heights shown are breaking wave heights — the actual rideable wave size at this spot.
The current wave height at Winchester Bay is 4-5+ft with a 10.5s swell period. Wind is NNW at 9mph and conditions are rated Poor - Fair. The forecast updates hourly so you can plan your session around the cleanest windows.
The current breaking wave height at Winchester Bay is 4-5+ft, produced by a 4.5ft W primary swell at 11s, a 1.9ft WNW secondary swell at 12s, a 0.7ft SW tertiary swell at 16s. 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 Winchester Bay is Tuesday from 6 AM to 9 AM with 5ft waves, a 10.8s swell period, and conditions rated Good. Check the hourly forecast for updates as conditions can shift.
Winchester Bay works best with a NW swell and NE 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 Winchester 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.
Winchester Bay is a rivermouth with a sand bottom, suited to intermediate surfers. Winchester Bay is a rivermouth break located on the Oregon coast where the Umpqua River meets the Pacific Ocean, offering sandbars that shift with river flow and tidal influence to produce punchy, hollow waves. The spot faces southeast toward the ocean, picking up Northwest swells that wrap around the river mouth and break over sand formations shaped by the river's outflow. This uncrowded gem rewards patient surfers with quality peaks, especially during fall when Oregon's swell season kicks in and offshore winds are most consistent.
The prime season at Winchester 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 Winchester Bay include strong currents, rip currents, shifting sandbars, cold water, river outflow, boat traffic, sneaker waves. Always check conditions before paddling out, respect local etiquette, and never surf alone if you're unfamiliar with the break.
Our Winchester 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. See the forecast accuracy card above for per-spot and regional performance metrics.
