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OʻAHU · NORTH SHORE

Keʻiki Beach

Water quality, snorkeling conditions, and seasonal safety at North Shore Oʻahu's quiet gem

📍 North Shore Oʻahu — between Sharkʻs Cove and Sunset Beach

Checking live advisories…
Seasonal Beach — Summer Swimming Only
Keʻiki Beach is only suitable for swimming during summer months (May–September) when North Pacific swells subside. Winter waves make this beach extremely dangerous. Always check current conditions before entering the water.
Water Quality at Keʻiki Beach
⚠ Historical rating — based on long-term data, not current conditions. Always check the water visually and avoid brown or murky water.
Low Risk 1 / 5

Keʻiki Beach benefits from its remote North Shore location and generally clean water quality. Open ocean exposure and strong wave action keep the water well-flushed. There are no streams or significant drainage sources immediately adjacent to the beach.

The beach is part of the broader North Shore coastline that is periodically monitored by the DOH. No consistent history of advisories — this is one of the cleaner stretches of North Shore coastline.

Based on: open ocean exposure, no nearby runoff sources, North Shore DOH monitoring

Seasonal Conditions
November – February
Big North swells — no swimming
Stay Out
March – April
Transition — check wave heights daily
Caution
May – September
Calm, clear water — best for swimming & snorkeling
Best Season
October
First winter swells can arrive — monitor closely
Watch Closely
Snorkeling at Keʻiki Beach

Reef Fish & Rocky Edges

During summer, the rocky sections at the edges of Keʻiki Beach offer decent snorkeling. You can find Hawaiian reef fish, sea turtles occasionally passing through, and colorful coral along the rock formations. Visibility is typically good in calm conditions.

This is not a dive-caliber snorkel site like Hanauma Bay or Sharkʻs Cove, but it's a peaceful, uncrowded option for casual snorkeling when the water is flat. Stay in the sandy middle sections if you're not a confident swimmer — the rocky edges can have surge even on calm days.

Sharkʻs Cove, just a few minutes west, is the premier North Shore snorkel site and has much more dramatic reef formations and marine life. Worth the short drive if dedicated snorkeling is your goal.

What to Know Before You Go
  • No lifeguards — swim at your own risk and check conditions carefully
  • Street parking along Kamehameha Highway (free, limited)
  • No showers or restrooms at the beach itself — nearest facilities at Sunset Beach park
  • Part of a long continuous stretch of sand — you can walk north toward Sunset Beach
  • Great spot for watching sunsets year-round
  • Some surf breaks accessible here for intermediate surfers in winter — but not for swimmers
  • Apply 72-hour rain rule after heavy North Shore rainfall
⚠️ The 72-Hour Rain Rule

The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. Keʻiki Beach has low runoff risk overall, but the North Shore can receive heavy rain from passing storms. If the water looks brown or cloudy, wait it out.

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⚠️ Important Disclaimer

Safe to Swim Hawaii is an independent passion project — not affiliated with any government agency. Ratings are estimates based on publicly available data and are not real-time measurements.

Always verify conditions with the Hawaii DOH Clean Water Branch before entering the water.

When in doubt, don't go out. 🤙

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