Hawaii is hot in every sense of the word: its warm climate makes it pleasant to visit year-round, which in turn makes it one of the planet’s most popular tourist destinations, pulling in around eight million visitors every year. The majority of Hawaii sunseekers (around five million, give or take) wind up on the island of Oahu, home to some of the state’s biggest attractions – Pearl Harbor, Waikiki Beach, Honolulu and the Diamond Head volcano, to name just a few. It goes without saying then that there’s plenty of fun to be had in the sun here. After all, no-one goes to Hawaii for its skiing opportunities, right? But with summer temperatures that average way up in the high 80s, you’ll likely want to pencil in a few slightly cooler activities (as well as covering yourself top to toe in factor 50, natch).
Here, then, are a few ideas for things to do in Oahu and Honolulu when it’s hot outside, including:
- Beaches!
- Snorkeling!
- Catamarans!
- Pineapples!
- Shave ice!
- And more!
Keep Your Cool on the Beach
You’ll want to pack plenty of beach bag essentials for your day at Waikiki, Hanauma Bay, the North Shore and, well, whichever of Oahu’s stunning tropical beaches tickle your fancy. We’re talking UV sunglasses, great big floppy sun hats and gallons of bottled water as a bare minimum. You may want to add a parasol or tent for use in some of the more exposed bays, though you’ll also find plenty available to rent in the main tourist areas. Beaches like Lanikai and and Kailua on Oahu’s windward side (the east coast) tend to offer more natural shade, in the form of palm trees. Top-tip: before slinging your towel down underneath, check carefully for the very real and present danger of ripe coconuts up above. You’ll be cooling off in A&E if one of those beauties drops on your nut!
Waikiki Beach is of course the most popular of Oahu’s beaches, and opportunities to cool off on snorkeling trips here abound. Cruise out onto the beautiful clear blue waters and come face to face with all manner of tropical marine life. You’re all but guaranteed to meet green sea turtles at the aptly named Waikiki Turtle Canyon.
Hanauma Bay is where it’s at for some of Oahu's most spectacular sealife selfie opportunities. Vibrant yellow tangs and flamboyant spinner dolphins are just two of the cute critters you might spot on snorkeling excursions to the thriving coral reef that lies in the cone of this long-extinct volcano.
Hit up the pristine sands of Lanikai Beach for more of the same (but with added palm cover), and crescent-shaped Kailua Beach (pictured above), where balmy trade winds encourage other watery pursuits including kitesurfing and kayaking.
Oahu’s Hottest Tours
If you simply can’t bear to spend all day lounging in the shade of a coconut palm, moving only to top up your rum-laced Mai Tai cocktail, there are plenty of island tours you can take around Oahu and Honolulu on hot days instead. Here, after all, is an opportunity to see this beautiful volcanic paradise from the lush cool confines of an air-conditioned coach. Try a trip to the Dole plantation on the North Shore. Sampling the sweet flesh of their world-famous pineapples under the hot Hawaiian sun is one that’s worth disembarking the refrigerated coach for, and no mistake! You could also take a tour of Oahu’s hidden gems, including tranquil temples, shaded Japanese gardens, and the cooling spray of epic blowholes like Halona. Or immerse yourself in rainforests and visit the 150-foot Manoa waterfalls, passing through jungle scenery used in The Hunger Games movie series.
You can book tours including all of the above (and more) with an Oahu pass from Go City, which can save you up to 50% on top attractions, tours and activities on Oahu. Find out more and bag your Oahu pass here.
Ice Cold in Oahu
Hawaii is arguably as famous for its shave ice as its beaches, volcanoes and hula skirts. Find out what all the fuss is about at any one of dozens of purveyors of this frozen treat across the island. Shave ice is exactly what it sounds like: tiny shavings of ice liberally doused in lashings of fruit syrup, and boy is it refreshing on a hot day. Get yours from North Shore shave ice stalwart Matsumoto’s. A fixture on Oahu since the early 1950s, its natural lychee, passion fruit and yuzu flavorings are some of the best in Hawaii. Other local favorites include Ululani’s and Shimazu – for all the ice-cold refreshment but without the half-hour lines. Top tip: it’s ‘shave ice’ not ‘shaved ice’, so be sure to sidestep any vendor that didn’t get the name right on their signage.
Life on the Ocean Wave
Feel the sea breeze on your skin aboard a catamaran or luxury yacht as you tour the Oahu coastline in style. This is a fine (and crucially effortless) way of seeing a bit more of the island and perhaps even ogling the odd humpback whale, flying fish or green sea turtle on your travels. Don your floppiest sun hat, slather on the sunscreen and sip a glass of prosecco on deck-o as you cruise past jungle-clad mountains and over the coral-rich depths of Oahu’s submerged volcanic cones. Take your pick from straightforward catamaran excursions to decadent day trips that include lunch, snorkeling, and bottomless bubbly. You can access a variety of superb sea-faring options with the Go Oahu pass.
Oahu’s Coolest Hikes
Ok ok, so hiking may not be the first activity that springs to mind when it’s hot out in Oahu, but bear with us. The botanical gardens at Waimea Valley are a 1,875-acre oasis of lush plantlife and great fronds of greenery. Shady groves and a cooler climate make the gardens ideal for strolling, even when the tropical sun is at its most punishing. Meander gently through some of the park’s 52 themed zones, where towering cacti and fresh-scented hibiscus flourish, and where the picture-perfect Waimea Falls provide ample opportunity for cooling off should the heat get too much.
Alternatively, hop across to Big Island, home of Mauna Kea, the highest peak in Hawaii. Hikes to the summit commence from the visitor center, 9,200 feet up, where you’re all but guaranteed freezing temperatures and possibly even snow. But be warned that this 12-mile round-hike is not for the faint of heart, with challenging terrain and the threat of altitude sickness the price of evading the Hawaii heat way up here.
Save on Oahu and Honolulu Activities, Tours and Attractions
Save on admission to Oahu attractions with Go City. Check out @GoCity on Instagram for the latest top tips and attraction info.