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Waves reaching up to 27 feet are expected along parts of the Oregon coast on Sunday, November 8, while Northern California beaches could see breaking waves of up to 24 feet.
High surf advisories from the National Weather Service warn of dangerous conditions and possible beach erosion in coastal areas of both states.
Sunday’s High Surf Advisories for Beaches in Oregon and California
The Oregon surf advisory is in effect from 4 a.m. to 10 p.m. PST on Sunday, November 8. The Northern California advisory runs from 7 a.m. to 10 p.m. PST.
In Oregon, breaking waves of 22 to 27 feet are forecast for beaches in Curry, Coos, and Douglas counties.
The Medford weather office warns that surf in its coastal forecast area could inundate beaches and low-lying shorelines, with possible erosion and damage to exposed infrastructure.
Along the Northern California coast, waves of 22 to 24 feet are expected in coastal parts of Del Norte, Humboldt, and Mendocino counties.
Tidings Data Snapshot
Sunday’s High Surf Advisory WindowsNovember 8, 2026 — all times Pacific Standard Time| Coast | Breaking waves | Hours |
|---|---|---|
| South-central Oregon and Curry County | 22–27 ft | 4 a.m.–10 p.m. |
| Del Norte, Humboldt and Mendocino | 22–24 ft | 7 a.m.–10 p.m. |
Applies to the coastal zones listed in the advisories. Inland cities are not under a surf advisory. Northern coastal Humboldt also has a separate 10 a.m.–noon coastal flood advisory.
Source: National Weather Service / Medford CFW, November 7, 11 p.m.; Eureka CFW, November 8, 3:24 a.m.DailyTidings.com
The Eureka weather office warns that the waves may be erratic and unpredictable, with enough force to sweep people into the cold, turbulent water.
Beachgoers are advised to stay away from the surf zone and avoid jetties. The weather service’s beach safety guidance explains coastal hazards and precautions.
Incoming Humboldt County Swell Coincides With High Tides
The incoming swell is expected to reach 16 to 20 feet, with a wave period of up to 17 seconds. The combination of large waves and elevated tides could push water farther up beaches and onto normally dry areas.
A separate coastal flood advisory is in effect for northern coastal Humboldt County from 10 a.m. to noon Sunday.
High tide at the Humboldt Bay North Spit gauge is forecast for 10:21 a.m., with saltwater flooding of up to half a foot above ground level possible near shorelines and tidal waterways.
Roads and parking areas exposed to high tides could also experience brief flooding, but the large swell is expected to ease Sunday night and into Monday.
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