Water quality at Kuhio Beach
The Aston Waikiki Beach Tower is directly across from Kuhio Beach, one of the most popular swimming spots in Waikiki. The seawall-protected lagoon area at Kuhio provides calm swimming conditions but shares the same Ala Wai Canal runoff concerns as all of Waikiki. Bacteria levels here are typically acceptable on dry days, but can spike after heavy rain. The enclosed nature of the seawall area means water refreshment is slower than on open beach sections.
The Hawaii Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain, even if the water looks clear. Bacteria and pollutants from runoff can linger in the water longer than the brown color does.
If the ocean near Aston Waikiki Beach Tower turns brown or murky after rain, do not enter the water. Brown water carries bacteria, pollutants, and sediment from runoff. Wait at least 72 hours after the rain stops and until the water visually clears before swimming. Consider these alternatives in the meantime:
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⚠️ Important Disclaimer
Safe to Swim Hawaii is an independent passion project — it is not affiliated with the Hawaii Department of Health, Aston Waikiki Beach Tower, or any government agency or hotel brand. Water quality ratings on this site are estimates based on publicly available testing data and geographic analysis. They are not real-time measurements and may not reflect current conditions. “No DOH Alerts” means no advisory is currently posted — it does not mean the water was tested and found safe. DOH only monitors a fraction of Hawaii’s beaches, and some areas have no regular testing at all.
Always verify current water quality conditions with the Hawaii Department of Health Clean Water Branch before entering the water. This site is for informational purposes only and should not be the sole basis for any swimming decisions.
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When in doubt, don’t go out. 🤙