Aerial view of Kāne‘ohe Bay. Courtesy City and County of Honolulu.
HONOLULU — The City and County of Honolulu’s Ocean Safety Department (HOSD) is strongly urging residents and visitors to stay out of the ocean following recent heavy rains, especially as the upcoming Prince Kūhiō Day holiday approaches.
The Hawaiʻi State Department of Health (DOH) has issued a Brown Water Advisory for Oʻahu, recommending that the public avoid entering ocean waters for at least 72 hours after the last rainfall. Even after that period, ocean users should continue to avoid areas where the water appears brown or murky.
Extra caution should be taken near stream mouths, drainage outlets, and other areas where runoff flows into the ocean.
Runoff from heavy rains can carry bacteria, pollutants, and debris into nearshore waters, creating serious health and safety risks that may not be visible from shore.
Key safety reminders:
- Avoid brown or murky water, which may contain harmful bacteria and contaminants that can cause illness or infection
- Watch for debris in the water, including floating or submerged objects that can cause injury
- Avoid swimming, wading, or drinking water from freshwater streams and ponds
- Be aware that runoff can attract sharks and other marine life
There are currently no beach closures, and ocean conditions may appear calm. However, HOSD strongly encourages the public to make informed decisions and prioritize safety while the advisory remains in effect.
Before entering the water, check with on-duty lifeguards for the latest ocean conditions and safety guidance.
