Field guide index

Big Waves

Explore big waves through our San Diego field notes. Find practical guides, coastal context and links to the official information you need before heading out.

King-tide panorama at the D Street shoreline, photographed by L. Cox for the U.S. Fish and Wildlife Service

San Diego coast

King Tides San Diego: Dates, Viewing and Safety

Check official king tide dates for San Diego, understand local tide times and choose safe, elevated places to observe high water.

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A surfer and breaking waves along the San Diego coast at sunset

San Diego County coast

San Diego Beach Water Quality, Tides and Coastal Resources

Use the tool that answers your actual question. Water quality, tides, waves and access are separate checks, and one favorable result does not replace the rest.

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Large breaking surf at Ocean Beach in San Diego

San Diego coast

Big Waves San Diego January: What to Check Before Visiting

Winter surf can change a beach outing quickly. Watch from established areas far from wave wash, cliffs and closed structures.

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