Water quality at Waikiki Beach
📍 Central Waikiki · near Royal Hawaiian Hotel
The Sheraton Waikiki is located on the central section of Waikiki Beach, fronting some of the most famous ocean real estate in the world. During normal dry weather, Waikiki Beach has moderate-low bacteria risk — the offshore reef helps buffer the beach, and DOH monitoring is regular.
The primary water quality risk is the Ala Wai Canal, which discharges at the western end of Waikiki. After heavy rain, bacteria-laden urban runoff from this canal spreads eastward along the beach. DOH advisories for Waikiki are more common than for cleaner beaches like Kailua or Maui's South Shore.
Based on: DOH Waikiki Beach monitoring data, Ala Wai Canal proximity, urban watershed analysis
Stay out for at least 72 hours after heavy rain. Waikiki is particularly vulnerable to Ala Wai Canal runoff. When water near the canal mouth or along the beach appears brown, stay out — regardless of whether a formal advisory is posted.
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — not affiliated with the Hawaii Department of Health, Sheraton Waikiki, or any government agency or hotel brand. Ratings are estimates based on publicly available data. Not real-time measurements.
Always verify with the Hawaii DOH Clean Water Branch.
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. 🤙