Water quality status and bacteria risk rating
📍 Queen’s Beach, east end of Waikīkī near the Aquarium
Kapiʻolani Beach (Queen’s Beach) sits at the eastern end of Waikīkī near the Honolulu Zoo and Waikīkī Aquarium, with historically baseline water quality. The area benefits from better ocean circulation than the more enclosed central Waikīkī strip, with proximity to open water near Diamond Head helping to flush the area.
Like all Waikīkī-area beaches, water quality can be affected by storm drain discharge after heavy rain. The Ala Wai Canal, which drains into the ocean west of here, is a known pollution source during storms. However, Queen’s Beach is far enough east to avoid the worst impacts. Much less crowded than the main Waikīkī strip.
Based on: DOH beach monitoring, open ocean proximity near Diamond Head, storm drain influence
The Department of Health recommends staying out of the ocean for at least 72 hours after heavy rain. While Kapiʻolani Beach has better flushing than central Waikīkī, the Ala Wai Canal and urban storm drains can still affect water quality after heavy storms.
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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 or any government agency. 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. 🤙