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OʻAHU · WAIKIKI · LUXURY HOTEL

Ritz-Carlton Waikiki

Waikiki Beach water quality & swimming guide

📍 Waikiki, Honolulu — Steps from Waikiki Beach

Checking live advisories…
Ala Wai Canal — Post-Rain Bacteria Risk
After heavy rain, the Ala Wai Canal flushes urban runoff near Waikiki, elevating bacteria levels. Wait 72 hours after rain and avoid brown or murky water. On dry days, water quality is typically acceptable.
Historical Bacteria Risk — Waikiki Beach
⚠ Historical rating — based on long-term data, not current conditions.
Medium Risk 3 / 5

The Ritz-Carlton Waikiki faces the iconic Waikiki shoreline, where water quality is rated Medium due to the proximity of the Ala Wai Canal. On dry days during extended periods without rain, water quality historically tests within baseline — Waikiki's open ocean exposure provides reasonable flushing. The hotel is in central Waikiki, one of the most monitored beach areas in the state.

The Ritz-Carlton Residences opened in 2018 and is one of Waikiki’s newest luxury properties. The rooftop pool offers stunning ocean and Diamond Head views for days when beach conditions are not ideal. City and County lifeguards patrol the Waikiki shoreline every day.

BEACH
Waikiki Beach
BACTERIA RISK
Medium (3/5)
LIFEGUARDS
Daily on duty
ROOFTOP POOL
Yes — 8th floor
⚠️ The 72-Hour Rain Rule

After heavy rain, stay out of Waikiki for at least 72 hours. The Ala Wai Canal drains the entire Manoa and Palolo valleys and empties near Waikiki. Use the rooftop pool on rainy days.

Book Tours & Activities

Top-rated experiences near this beach. Check water quality above, then plan your trip.

Waikiki Surf Lesson
Learn to surf right at Waikiki Beach
Viator
Sunset Catamaran Cruise
Departs steps from the Ritz-Carlton
Viator
Hanauma Bay Snorkel Tour
20 min from Waikiki — best snorkeling on Oahu
Viator
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⚠️ Important Disclaimer

Independent passion project — not affiliated with the Hawaii DOH or Ritz-Carlton. Ratings are historical estimates, not real-time.

Verify with Hawaii DOH Clean Water Branch before swimming.

This site does not recommend or advise anyone to swim at any beach. We share government data and geographic analysis so you can make your own informed decisions. By using this site you accept full responsibility for your own safety. See our Terms of Use for full details.

When in doubt, don't go out. 🤙

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