Can tourists drink water in Hawaii?

Yes, it is safe to drink and use tap water on the island of O?ahu including in Waikiki. The Board of Water Supply in Hawai?i works in conjunction with State and Federal agencies, such as the U.S. Environmental Protection Agency and Hawai?i State Department of Health, to ensure the water in Hawai?i is safe to drink.



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Second only to the south shore, west Maui has many of the best beaches for swimming, snorkeling, and just about anything else you could want. And the crown jewel among them has to be the three-mile stretch of white shore and shimmering blue water at Ka'anapali Beach.

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Avoid the Ocean During Do not swim in the ocean in the dark, and if you are a visitor and arrive at the beach early, do not enter the water until a lifeguard is on duty (at a designated State Beach Park). If it's time for the lifeguards to leave for the day, it's best to err on the side of caution and exit the ocean.

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The lens-shaped body of fresh water that exists within Oahu's porous volcanic rock is called an aquifer, or fresh water lens. This water is among the cleanest anywhere, having been purified through years of percolating downward through soil and volcanic rock.

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The natural currents continually bring a fresh supply of ocean water to the island. Warm surface water in tropical areas have low nutrient concentrations. This limits the amount of zooplankton and phytoplankton which would otherwise cloud the water some.

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If you happen to be walking on a public highway or sidewalk to your beach, consuming liquor is illegal. If you choose to drink alcohol on or near a beach, be aware there are many restrictions and you may be unknowingly breaking the law.

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As a general rule, Hawaiian waters average 77 degrees in the wintertime to 82 degrees in the summertime. Now, compared to the U.S. West Coast, Hawaiian waters are definitely much warmer (10-20 degrees warmer) than the waters off Southern California. No comparison really for the U.S. West Coast.

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Can I swim at Waikiki Beach after hours? While the beach is open 24/7, swimming after lifeguard hours is generally discouraged for safety reasons.

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Hawaii's ocean water is nutrient deficient. This is common in tropical areas with warm surface water temperatures. A lack of nutrients means there are fewer phytoplankton and algae in Hawaii's water, which makes it more blue.

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More Hawaii visitors drown while snorkeling than during any other activity. If you intend to go snorkeling in Hawaii, you should be an experienced ocean swimmer familiar with the risks and dangers associated with high surf, strong currents, and waves breaking in shallow water.

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