Is Hawaii water warm?

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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As a reminder, Hawaii's water temperatures stay several degrees above 70°F and are warm enough for swimming and snorkeling. The National Center for Cold Water Safety also provides some useful water temperature reference points: 85F(29.4C) Water feels pleasantly cool rather than warm.

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The Hawaiian Islands' near-shore water temperatures remain comfortable throughout the year. The average water temperature is 74° F (23.3° C), with a summer high of 80° F (26.7° C). Wave action varies dramatically between island coasts and seasons. Summer waters are typically gentle on all beaches.

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The North Pacific Current is a powerful and warm ocean current that flows from the western coast of North America towards the Hawaiian Islands. This current brings with it water that is typically warmer than the surrounding ocean, contributing to the overall warmth of the waters around Hawaii.

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Hot Water Beach in the Coromandel in New Zealand has hot water that reaches up to 64 degrees C. It's not the water in the sea, however, but the water that bubbles up through the sand from the geothermal springs.

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Per the National Center for Cold Water Safety, temperatures below 70°F are considered “dangerous” because most people have difficulty controlling their breathing. As a reminder, Hawaii's water temperatures stay several degrees above 70°F and are warm enough for swimming and snorkeling.

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So overall, compared to those warm water areas of the U.S. Gulf and Florida, Hawaiian waters are warmer in the winter and cooler in the summer. As a general rule, Hawaiian waters average 77 degrees in the wintertime to 82 degrees in the summertime.

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The Big Island Early in the year you might see migrating humpback whales offshore, and all year long the water is perfect for swimming, bodyboarding, and snorkeling, though as is true on most Hawaiian beaches, the surf will tend to be higher in the winter months and far gentler in summer.

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It does not have the extremes of cold winters and summer heat waves and it usually does not have hurricanes and hailstorms. However, Hawaii's tallest peaks do get their share of winter blizzards, ice, and snow. Highest temperatures may reach into the 90s.

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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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The risk of being attacked by a wild animal when swimming in Hawaii is low, as there is only a small number of shark attacks reported each year, and other marine life such as jellyfish, Portuguese man-of-war, moray eels, and sea urchins are more likely to cause a minor injury than a serious one.

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The best time to visit Hawaii is between March and September. This is when the islands see the highest temperatures and the lowest amount of rain.

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Avoid swimming before sunrise or after sunset when it is dark outside and visibility is poor. Wind activity often picks up in the late morning or afternoon, which can make paddling back to shore more difficult.

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Risk in Hawaii Infections due to rhinovirus are most common during the fall and spring, but it is possible to get infected at any time of the year.

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The sediment in Hawaii's oceans is made up of volcanic rock, coral, and shells which are heavy and not easily stirred up. The sediment quickly settles on the ocean floor, keeping the water clear.

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Hawaii's trade winds bring a constant flow of fresh temperate air traveling for thousands of miles over tropical ocean waters, naturally cooling the islands and providing the cleanest air anywhere on the planet.

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