What time of year is best to swim in Hawaii?

Best Time for Snorkeling and Swimming: Great swimming and snorkeling are possible year-round in Hawaii, but during summer months (May through September) water is warmer, waves are smaller, and skies are sunnier, making conditions ideal for these water-based activities.



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Water temperatures are around 74 degrees so swimming is a year round activity here in Hawaii. If you're looking into boating, snorkeling, surfing or any other Hawaii activity this winter, be sure to book as soon as possible!

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Summer is the best time to take a dip in the warm Hawaiian waters. The ocean temperature hovers around 82°, and the wind and surf are reliably low. Visitors of any experience level can enjoy snorkeling in the clear, calm summer sea.

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According to data from the National Oceanic Atmospheric Association (NOAA), the warmest water off Honolulu can be found from July to September—averaging 80 to 81 degrees Fahrenheit. However, Honolulu water temperatures drop to only 76 degrees in January, according to NOAA.

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April thru June and mid-August thru mid-September are Hawaii's low seasons, and airfares are lower then. No matter what time of year you travel, you may be able to score better deals if you travel midweek.

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While it is nice to swim in the pool below the falls, we don't recommend swimming directly under the waterfall. The pressure of the water can be intense, and sometimes rocks and other debris can come over the falls without warning and cause injury.

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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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Water temperatures are around 74 degrees so swimming is a year round activity here in Hawaii. If you're looking into boating, snorkeling, surfing or any other Hawaii activity this winter, be sure to book as soon as possible!

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Hawaii is beautiful and warm all year long, with none of the seasonal variations you might expect when you're at home on the U.S. mainland. For instance, temperatures hover between the low 80s in the winter and the high 80s in the summer — hardly a reason for seasonal wardrobe changes!

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Hawaii is a beautiful state with six main islands to explore. Each island has beautiful beaches and natural beauty, but if you're a first-time visitor, O?ahu is the best island to visit. The Hawaiian island that is home to the state capital (Honolulu) has something for everyone.

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Most visitors travel during breaks, so summer and mid-spring are busy. But the busiest time in Hawaii is actually winter – specifically the last two weeks of December through early January – as people are fleeing cold climates for sunny beaches and warm weather.

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With two days of travel, it is great to have 8 or more full days to explore the island you're staying on. If you are looking to hike, snorkel, or camp, we recommend taking even 14 days for your vacation.

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Spring and Autumn are the “low” or “off” season in Hawaii. April through mid-June, and September through mid-December see the fewest tourists. This can result in a wider variety of options for you when it comes to hotels, transportation, and attractions.

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The relatively high ocean temperatures and perfect weather make Hawaii the ideal destination for swimming and surfing. The average temperature of the ocean during April is around 77°F, which is warm enough for most visitors, especially those from cold climates.

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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).

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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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