Are you thinking about planning a trip to Oahu in December? Find out some of the best things to do in Oahu in December that are worth adding to your itinerary!
This list of things to do in Oahu in December was written by Hawaii travel expert Marcie Cheung and contains affiliate links, which means if you purchase something from one of my affiliate links, I may earn a small commission that goes back into maintaining this blog
Planning a December getaway to Oahu? You’re in for a treat.
While everyone else is scraping ice off their windshields, you’ll be soaking up 81-degree sunshine on the beach.
But Oahu in December isn’t just about escaping winter (though that’s a pretty solid reason on its own). This month brings a magical mix of holiday festivities, early whale sightings, and some seriously good weather.
I’ve spent multiple Decembers on Oahu over the years, and as a Hawaii travel expert who’s visited the islands more than 40 times, I can tell you this is one of my favorite times to be there.
The vibe is festive, the crowds are manageable (until Christmas week hits), and you get to experience Hawaiian culture blended with holiday traditions in the most unexpected and delightful ways.
Let me walk you through everything you need to know about visiting Oahu in December, from the actual weather situation to the best activities and events happening this year.
What’s the Weather Really Like in Oahu in December?
Here’s the deal with December weather in Hawaii. Yes, it’s technically the rainy season. But before you panic and start reconsidering your trip, let me explain what that actually means.
December temperatures on Oahu hover around 81°F during the day and dip to about 67°F at night. The ocean water stays warm at around 77°F, which means you can absolutely swim, snorkel, and do all the water activities you’re dreaming about.
When people hear “rainy season,” they picture gray skies and days of drizzle. That’s not what happens in Hawaii.
Instead, you get quick tropical showers that blow through, often while you’re sleeping or having breakfast. Then the sun comes back out, everything smells fresh and tropical, and you carry on with your day.
One side of the island might be experiencing a light shower while the other side is completely sunny. That’s just how Oahu’s microclimates work. The windward (east) side tends to get more rain than the leeward (west) side, but we’re talking brief showers, not day-ruining downpours.
Pack a light rain jacket, sure. But don’t stress about the weather forecast obsessively checking it. (If you want to understand why weather apps are basically useless for Hawaii, I did a whole podcast episode about Hawaii weather that’ll save you a lot of unnecessary stress.)
The trade winds pick up in December, which actually makes everything feel fresh and comfortable. Yes, you might want a light sweater for evening walks, but you’re going to be perfectly happy in shorts and tank tops most of the time.
Want to dive deeper into what to pack and how to plan? Grab my free 7-day email course on planning a trip to Oahu. It covers everything from weather strategies to creating the perfect itinerary.
December Holiday Events on Oahu (2025)
This is where Oahu really shines in December. The islands do Christmas differently, and honestly, it’s one of the most magical experiences you can have during the holidays.
Honolulu City Lights (Nov 29 – Dec 31, 2025)
If you’re on Oahu anytime in December, you cannot miss Honolulu City Lights. This year’s opening night is Saturday, November 29, 2025, and the celebration runs through December 31st.
Picture this: a 55-foot Christmas tree lit up in downtown Honolulu, a massive Shaka Santa and Tutu Mele (Mrs. Claus in a muumuu) waving at you, and the entire Honolulu Hale (City Hall) transformed into a holiday wonderland.
There are 250 feet of lighted tunnels, 50 illuminated trees, food vendors, and even a keiki train ride for the kids.
Opening night features the Electric Light Parade, which winds through downtown Honolulu before the official tree lighting ceremony. Get there early because locals and visitors pack this event. The best part? It’s completely free.
Pro tip from a professional tourist: weekday evenings are way less crowded than weekends. Go around sunset to watch the lights come on against the sky.
If you want to learn more about spending Christmas in Hawaii, I covered all the details in this podcast episode about Christmas in Hawaii, including cost breakdowns and planning tips.
Holiday Lights Trolley Tour (Nov 30 – Dec 30, 2025)
Don’t feel like dealing with downtown parking? The Holiday Lights Trolley Tour picks you up in Waikiki and takes you through all the Christmas displays.
You’ll ride through the Honolulu parade of lights, see Shaka Santa, and get dropped back at your hotel. It’s $35 for adults and $25 for kids ages 3-11, and it includes access to a Winter Wonderland tent with free hot cocoa and photos with Santa.
Kapolei City Lights (Dec 6, 2025 – Jan 4, 2026)
If you’re staying on the west side or just want another light display to check out, Kapolei City Lights opens December 6th with a block party and parade.
This year’s theme is “Season of Stars,” celebrating Hawaiian navigation traditions. The displays stay up through January 4th, so you have plenty of time to visit.
Pearl Harbor Day (December 7, 2025)
December 7th marks the 84th anniversary of the Pearl Harbor attack. There are formal commemoration ceremonies at the Pearl Harbor National Memorial throughout the day, including wreath-laying ceremonies and the Pearl Harbor Memorial Parade at 4:15 PM.
Even if you’re not in Oahu specifically for Pearl Harbor Day, visiting Pearl Harbor is always worth it. The memorial is powerful and educational, though you’ll want to book tickets well in advance because they sell out quickly.
Honolulu Marathon (December 14, 2025)
Okay, so maybe running 26.2 miles isn’t your idea of a vacation. But the Honolulu Marathon is actually pretty cool to watch, even if you’re not participating.
It starts at 5 AM with fireworks at Ala Moana and winds through some of the most scenic parts of Oahu, including Diamond Head and Kahala.
The course passes right by the Honolulu City Lights decorations downtown, which makes for some pretty spectacular early morning views.
New Year’s Eve Celebrations
New Year’s Eve in Waikiki is an experience. At midnight, fireworks light up the sky over Waikiki Beach, shot from a barge offshore.
You can watch from the beach (bring a blanket and get there early), from your hotel balcony if you’re lucky enough to have an ocean view, or from one of the many restaurant patios in the area.
If you want to get out on the water for the fireworks, there are several New Year’s Eve dinner cruises that position themselves for perfect views. Book these months in advance because they sell out fast.
Want something more low-key? Head to Mililani Town Center at noon on December 31st for their Pineapple Drop. It’s like Times Square’s ball drop, but it’s a 12-foot illuminated pineapple and happens at noon so your kids don’t have to stay up until midnight. There’s live entertainment, performances, and giveaways.
Check out my complete Oahu travel guide for families for more tips on planning your December trip.
Top 10 Things to Do on Oahu in December
Alright, let’s talk about the actual activities. Here are the best things to do while you’re on Oahu this December.
1. Whale Watching
December marks the beginning of whale watching season in Hawaii. Now, full transparency here: early December isn’t peak whale season (that’s January through March), but you can start seeing the first humpback whales arriving from Alaska.
These whales travel more than 3,000 miles to spend winter in Hawaii’s warm waters, where they mate, give birth, and nurse their calves. About 10,000 to 12,000 humpback whales visit Hawaii each winter, and spotting them never gets old.
You can book a whale watching tour from Waikiki or Ko Olina. Many tours guarantee sightings or offer a free return trip. Tours typically run 2-3 hours and include snacks and drinks.
If you’d rather watch from shore, head to Makapu’u Lighthouse Trail on the eastern tip of Oahu. The hike is easy and there are even permanent binoculars at the lookout to help you spot whales.
2. North Shore Surfing
December brings massive swells to Oahu’s North Shore. We’re talking 20 to 30-foot waves that draw professional surfers from around the world. Even if you’re not a surfer, watching the pros is absolutely mesmerizing.
The Vans Triple Crown of Surfing runs from mid-November through December, with competitions at Haleiwa, Sunset Beach, and Pipeline. Check the schedule before you go because these events draw huge crowds.
You can watch from the beach for free, but get there early to snag parking and a good viewing spot. Pack chairs, snacks, and plenty of sunscreen because you’ll want to stay awhile.
Want to learn to surf yourself? Stick to Waikiki for beginner lessons. The North Shore in winter is strictly for experienced surfers. Book surfing lessons on Waikiki Beach where the waves are gentle and perfect for first-timers.
3. Snorkeling Tours
The water temperature in December is still a comfortable 77°F, which makes snorkeling absolutely perfect. Book a morning snorkel tour when the water is calmest and visibility is best.
Hanauma Bay remains one of the top snorkeling spots on Oahu, but you’ll need to book entry tickets in advance. The bay is closed on Mondays and Tuesdays.
Other great snorkeling spots include Shark’s Cove on the North Shore (when the water is calm), Electric Beach near Ko Olina, and the waters around Waikiki where you can spot sea turtles.
Many snorkeling tours include transportation from Waikiki, all the gear you need, and sometimes even lunch. It’s an easy way to experience Oahu’s incredible underwater world.
4. Waikiki Beach
Yes, Waikiki gets crowded. Yes, it’s touristy. And yes, you should absolutely spend time there anyway.
Waikiki Beach in December is gorgeous. The weather is perfect, the water is warm, and the views of Diamond Head never get old. You can rent surfboards or paddleboards right on the beach, take surf lessons, or just lay out and work on your tan.
The stretch of beach between the Royal Hawaiian and the Moana Surfrider tends to be less crowded than right in front of Duke’s. Or head to Queen’s Beach and Sans Souci Beach on the Diamond Head side for a more local vibe.
Evenings on Waikiki are special. Watch the sunset, grab dinner at one of the beachfront restaurants, and maybe catch some of the free hula shows that happen in various spots along Kalakaua Avenue.
5. Waikiki Aquarium
Sometimes you need a break from the sun, or maybe it’s raining (remember, those quick showers happen). The Waikiki Aquarium is perfect for those moments.
Located right on the beach near Diamond Head, the aquarium showcases Hawaiian marine life including monk seals, jellyfish, reef fish, and coral ecosystems. It’s small enough that you won’t spend all day there, but fascinating enough to be worth the visit. Kids especially love it.
After the aquarium, walk next door to Kapiolani Park for some shade and open space, or continue on to Diamond Head for a hike if you’re feeling ambitious.
6. Nu’uanu Pali Lookout
This lookout gives you one of the most stunning panoramic views on Oahu. You’re looking down at the windward coast, with dramatic cliff faces, lush valleys, and the ocean stretching out to the horizon.
Fair warning: it’s incredibly windy up there (hence the name). Hold onto your hats, your sunglasses, and your kids. But the views are absolutely worth it.
The drive up is gorgeous too, winding through neighborhoods and then climbing into the mountains. Stop at the lookout on your way to Kailua or Lanikai Beach to maximize your time.
There’s a small parking fee, but otherwise it’s free to visit.
7. Hawaiian Luau
Want to experience authentic Hawaiian culture? Book a luau. December is actually a great time to go because many luaus incorporate holiday elements into their traditional performances.
I recommend Toa Luau at Waimea Valley or Disney Aulani Luau in Ko Olina. Both offer traditional Hawaiian food (try the kalua pork and poi), cultural demonstrations, and incredible Polynesian dance performances.
Kids love the fire knife dancing and getting temporary Polynesian tattoos. Adults appreciate the mai tais and sunset views. Everyone leaves with a better understanding of Hawaiian culture.
Book these in advance too, especially during December when tourism picks up. Most luaus include transportation from Waikiki.
8. Ala Moana Center
Yes, I’m including a shopping mall in this list. But Ala Moana Center isn’t just any mall.
With over 350 stores and restaurants, it’s the largest open-air shopping center in the world.
During December, the entire place is decked out in holiday decorations. You can get your photo with Santa, watch live entertainment including hula performances and Hawaiian music, and yes, do some serious shopping.
The food court has incredible options, from local plate lunches to Japanese ramen to fresh poke. It’s also air-conditioned, which feels amazing after a morning at the beach.
If you’re looking for Hawaiian souvenirs, you’ll find everything here from high-end boutiques to stores selling local crafts and gifts.
9. Hanauma Bay State Park
Hanauma Bay is a protected marine life conservation area formed in an ancient volcanic crater. The snorkeling here is some of the best in Hawaii, with hundreds of species of tropical fish and sea turtles swimming in crystal-clear water.
You have to watch a short educational video before entering (it’s actually pretty interesting), and there are lifeguards and facilities on-site. The bay is closed Mondays and Tuesdays, and you must book entry tickets online in advance.
Go early. Really early. Like 7 AM early if possible. The parking lot fills up fast, and once it’s full, they stop letting people in.
The walk down to the bay is easy. The walk back up is less easy, especially with kids and beach gear. There’s a tram for $1.25 per person if you’d rather not hike.
10. Pearl Harbor National Memorial
I mentioned Pearl Harbor earlier in the context of December 7th, but honestly, you should visit regardless of when in December you’re there.
The USS Arizona Memorial is profoundly moving. The tour is free, but you need to reserve tickets well in advance through recreation.gov. You’ll watch a documentary about the attack, then take a boat to the memorial built over the sunken battleship.
The USS Missouri and Pearl Harbor Aviation Museum require separate paid tickets, but they’re worth adding if you have time. The Missouri is where Japan officially surrendered, ending World War II.
Give yourself at least half a day here, more if you want to see everything. There’s no food inside the memorial area, so eat before you go or after you leave.
Tips for Visiting Oahu in December
A few practical tips to make your December trip easier:
Book everything in advance. I’m not kidding. Hotels, car rentals, tours, restaurant reservations, especially anything Christmas week. December is high season in Hawaii, and things sell out.
Need help with your rental car? This site compares all the major companies and often has better rates than booking direct.
Pack layers. You’ll want swimwear and shorts for daytime, but bring a light jacket for evenings and air-conditioned restaurants. Flip flops are fine for the beach, but bring sneakers for hiking and walking tours.
Don’t forget reef-safe sunscreen. Hawaii banned sunscreens containing oxybenzone and octinoxate to protect the coral reefs. Make sure your sunscreen is reef-safe, or pick some up when you arrive.
Capture your memories. Speaking of photos, I always book a session with Flytographer when we’re in Hawaii. They connect you with local photographers for 30-minute shoots in beautiful locations.
You get professional photos without having to hand your phone to strangers or take endless selfies. Plus you can save $20 through this link.
Build in flexibility. Rain showers happen. Tours occasionally get canceled due to weather. Leave some open time in your schedule instead of packing every single day full. Some of our best Hawaii memories happened during unplanned moments.
Support local businesses. Eat at family-owned restaurants. Book local tour operators. Shop at farmers markets. Your vacation dollars make a real difference to the community.
If you’re feeling overwhelmed with planning, I offer personalized Hawaii travel consultations where we can build out your entire itinerary together.
As a Hawaii travel expert, I’ll help you avoid common mistakes and create the perfect balance of activities and relaxation.
Or if you want to plan it yourself, my Oahu travel guide walks you through everything step by step.
December on Oahu FAQs
Is Oahu crowded in December? It’s busier than shoulder season (April-May and September-October), but manageable until Christmas week hits. If you can visit early December, you’ll deal with smaller crowds. Christmas week through New Year’s is peak tourist season.
What should I pack for Oahu in December? Swimsuits, shorts, t-shirts, one light jacket or sweater, sneakers, flip flops, reef-safe sunscreen, and a small rain jacket. That’s really all you need.
Can you swim in Oahu in December? Absolutely! The ocean temperature is around 77°F, which is perfectly comfortable. Just be aware of higher surf on the North Shore and swim at beaches with lifeguards.
Is December a good time to visit Oahu? Yes! The weather is great, there are tons of special holiday events, whale watching season starts, and you get to experience a completely different kind of Christmas. Just book early and be prepared for higher prices during peak weeks.
Where should I stay on Oahu in December? Waikiki is convenient for first-time visitors, with everything walkable and tons of restaurants. Ko Olina on the west side is more resort-focused and family-friendly. The North Shore is perfect if you want a quieter, more local experience.
Looking for specific hotel recommendations? Expedia usually has the best bundle deals, especially if you’re booking flights and hotels together.
Make the Most of Your December Trip to Oahu
Oahu in December offers the perfect combination of beautiful weather, Hawaiian culture, and holiday magic.
Whether you’re watching whales breach, hiking to waterfalls, learning to surf, or just relaxing on the beach with a mai tai, you’re going to create memories that last way longer than any mainland Christmas would.
Start planning now, especially if you’re traveling Christmas week. Book your hotels, rental car, and major tours as soon as possible. Sign up for my free email course about planning a trip to Oahu to get all my insider tips sent straight to your inbox.
And if you want more Hawaii travel inspiration, I share tips and updates on my podcast Hawaii Travel Made Easy. New episodes drop every Wednesday.
Need more Oahu planning help? Check out these guides:
- How many days do you really need on Oahu?
- Most beautiful places on Oahu
- Fun facts about Oahu
- How to get around Oahu without a car
Or grab my complete Hawaii island hopping guide if you’re planning to visit multiple islands.
December in Oahu is special. Trust me on this one. Start planning your trip now, and get ready for the best December you’ve ever had.
Looking for more Oahu travel content? Find out the most beautiful places on Oahu, surprising facts about Oahu, how to get around Oahu, and how many days on Oahu you really need!
