Thinking about a Hawaii trip around Christmas? Expect warm days in the low 80s and cooler nights in the upper 60s. The average weather brings a blend of sunshine, mild ocean breezes, and quick bursts of rain that rarely stick around.
You’ll probably find it perfect for beach time during the day, but cool enough at night to want a light jacket. Rain shows up more often in December, but it usually comes in short showers, not long storms.
The leeward sides of the islands stay drier, while windward areas get more rainfall. Ocean conditions shift too, with some spots staying calm and others—like the north shores—seeing big waves, which draws surfers.
Tropical weather mixes with the holiday spirit, making for a vibe that’s both festive and laid-back. Palm trees wrapped in lights, blooming poinsettias, and lively luaus give the islands a holiday feel that’s different from the classic winter scene.
Typical Weather Patterns During Christmas in Hawaii
December in Hawaii brings warm air, mild ocean temps, and a mix of sun and passing showers. Weather can change by island, and even by which side of the island you’re on.
Average Temperatures in December
Daytime highs usually hit 78–82°F (25–28°C) on most islands. At night, lows hover around 68–72°F (20–22°C), so you won’t need heavy clothes.
If you head up to higher elevations—like Haleakalā on Maui or Mauna Kea on the Big Island—temperatures drop fast and can even freeze. Bring warm layers if you plan a visit up there.
Humidity stays steady but doesn’t get overwhelming. Trade winds blow in and keep things comfortable, making hiking, sightseeing, and beach days easy to enjoy.
Rainfall and Humidity Levels
December falls in Hawaii’s wetter season, but most rain showers are quick and local. Honolulu gets about 2 inches, Kona about 3 inches, and Maui about 1.5 inches of rain in December.
Rain falls more often on the windward (northeast) sides of the islands. The leeward (southwest) sides usually stay drier and sunnier, so you might see lush rainforests on one side and sunny beaches on the other.
Humidity feels moderate, and most showers are warm. You might want a light rain jacket for hikes, but beach days usually go on as planned. Heavy storms can cause flooding in valleys, so check local advisories if you’re heading out to remote spots.
Ocean Temperatures and Surf Conditions
The ocean stays swimmable in December, with surface temps around 75–77°F (24–25°C). Most visitors swim, snorkel, and dive comfortably, though a light wetsuit helps if you’re sensitive to cooler water.
Winter brings big swells to the north shores on all islands, especially Oahu’s North Shore, where waves can reach 20–30 feet. Surfers flock here, but swimming gets dangerous in those spots.
For calmer water, stick to south and east shores or protected spots like Waikiki Beach or Hanauma Bay on Oahu. These areas usually work well for families and beginners, even in winter.
Weather Differences Across the Hawaiian Islands
Each island has its own weather quirks shaped by geography and trade winds. Temperatures stay warm everywhere, but rainfall, sunshine, and breezes shift depending on your location.
Oahu Weather Overview
On Oahu, December days usually reach the upper 70s to low 80s °F, with evenings cooling into the mid-60s °F. Waikiki and the leeward coast stay sunnier and drier, so they’re popular for beachgoers.
The north shore gets more rain and bigger surf. If you want to see surfing competitions, expect wet weather and muddy trails. Trade winds blow through and keep the air fresh.
Rain showers pass quickly, so outdoor plans rarely get ruined. Bring a light rain jacket if you’re venturing beyond Honolulu.
Maui Weather Overview
Maui gives you a mix of dry and wet in December. The leeward side—Lahaina and Kihei—usually stays sunny with highs near 80 °F. The windward side, like Hana, is wetter and more humid.
Upcountry Maui, like Kula and Haleakalā, feels much cooler. At higher elevations, nighttime temps can drop into the 40s °F. If you’re going for the Haleakalā sunrise, pack warm clothes.
Rain falls more in East Maui, but showers don’t last long. The drier west and south coasts are better for consistent beach weather.
Big Island Weather Overview
The Big Island has the widest variety of climates. Kona and the west coast usually stay dry and sunny in December, with highs in the low 80s °F. Hilo and the east side get more showers.
Mauna Kea and Mauna Loa sometimes see snow in winter. If you drive up to the higher elevations, bundle up—it gets cold, well below freezing.
The island’s microclimates mean you could see sun, rain, and wind all in one day. Packing layers makes exploring both coast and mountain areas easier.
Kauai Weather Overview
Kauai ranks as the rainiest main Hawaiian Island. December brings even more showers, especially on the north shore around Hanalei. The landscape stays lush and green, but muddy trails can limit hiking.
The south shore, like Poipu, usually stays drier and sunnier. Daytime highs average around 78–80 °F, and nights drop into the mid-60s °F.
Rain usually comes in quick bursts, so you’ll likely catch plenty of sun between showers. For fewer rainy days, stick to the southern coast.
Holiday Events and Festive Atmosphere
December in Hawaii mixes warm weather with a lively holiday spirit. Locals and visitors come together for big displays, community traditions, and athletic events.
Honolulu City Lights
Honolulu City Lights is Hawaii’s biggest holiday display. It happens downtown at Honolulu Hale, the city hall. You’ll see a giant decorated tree, light displays, and themed exhibits both inside and outside.
The event kicks off with a tree lighting and an electric light parade. Streets fill up with food vendors, music, and family fun. Decorations stay up all December, so you can visit whenever you like.
If you love snapping photos, this spot is a must. Parking gets tight, so arrive early or take public transit.
Key details:
- Location: Downtown Honolulu, Oahu
- Highlights: Giant Christmas tree, light parade, decorated displays
- Admission: Free
Kauai Festival of Lights
On Kauai, the Festival of Lights takes place at the Historic County Building in Lihue. The tradition began with handmade decorations from recycled materials, and that theme continues.
Walk through the building to see unique ornaments, wreaths, and themed trees made by local artists and volunteers. Outside, the grounds light up with displays that make it a favorite evening stop.
Community involvement and creativity shine here. If you want a taste of local culture blended with holiday traditions, this is worth a visit. The event is family-friendly and usually runs on weekends in December.
What you’ll notice:
- Strong focus on handmade decorations
- Indoor and outdoor light exhibits
- Free admission, donations often welcome
Honolulu Marathon
Every December, the Honolulu Marathon draws runners from all over and ranks as one of the largest in the U.S. The race starts near Ala Moana Beach Park, winds through downtown, and heads along the coast toward Diamond Head and Hawaii Kai before looping back.
You don’t have to run to enjoy it. Spectators line the course to cheer, and the early start lets you catch the sunrise over Waikiki. The vibe is energetic, with music and volunteers all along the way.
If you’re thinking of running, the course offers scenic views and warm, manageable weather. Even as a visitor, watching the race gives you a feel for the island’s community spirit.
Quick facts:
- Distance: 26.2 miles
- Start time: Early morning
- Open to runners of all levels, no qualifying time required
Tourist Season and Travel Considerations
Traveling to Hawaii around Christmas has its perks and challenges. You’ll enjoy warm weather and festive events, but you’ll also run into bigger crowds and higher prices.
Crowd Levels and Booking Tips
December is one of Hawaii’s busiest months, especially from mid-December through New Year’s. Visitor numbers jump as people escape winter, and popular spots like Waikiki, Lahaina, and Poipu get crowded.
For smaller crowds, aim for the first two weeks of December. You’ll still get the holiday lights and events but skip the worst congestion.
Book ahead—flights and hotels often sell out months in advance, and last-minute deals almost never pop up. Reserve at least 4–6 months early for the best rates and availability.
If you want more space, try less busy islands like Kauai or the Big Island. Even on each island, leeward sides generally feel less crowded than the main resorts.
Holiday Pricing Trends
Prices shoot up fast during the holidays. By late December, hotel rates can be 30–50% higher than in shoulder seasons like September or April. For example, Maui’s average nightly rates often top $500, while Oahu is a bit more affordable at around $300.
Airfare jumps, too. Flying during Christmas week costs much more than early December or January. If your dates are flexible, you can save a bit.
Rental cars get scarce, and daily rates climb as demand spikes. Book your car when you book your flight and hotel to avoid missing out.
Want to save money? The best time to visit Hawaii is outside the holiday rush. Early December or late spring usually brings similar weather without the high prices.
Packing and Preparation for December Weather
When you visit Hawaii in December, expect warm days, cooler evenings, and some rain. Packing light, breathable clothes, a few layers, and rain-ready items will keep you comfortable.
Recommended Clothing and Gear
Daytime highs around Christmas often reach the upper 70s to low 80s °F, with evenings dipping into the upper 60s °F. Bring lightweight fabrics like cotton or linen for daytime. T-shirts, shorts, and sundresses work well.
Pack at least one light jacket or sweater for cooler nights, especially if you’ll be outside or heading to higher elevations like Haleakalā or Mauna Kea. A compact rain jacket or poncho comes in handy since December is part of the rainy season.
You’ll want comfortable walking shoes or sandals for exploring towns and trails. Hikers should bring sturdy shoes with good grip. A small daypack makes it easy to carry water, sunscreen, and other must-haves.
Don’t forget UV-blocking sunglasses, a wide-brimmed hat, and reef-safe sunscreen. The sun stays strong in Hawaii, even in December.
Beach and Outdoor Essentials
In December, the ocean usually sits in the mid to upper 70s °F. That’s warm enough for swimming and snorkeling without much hesitation.
You’ll want to pack swimwear, rash guards, and a cover-up for both the beach and resort areas.
If you’re planning to hit the water often, bringing your own snorkel set or mask and fins can save you some rental money. I’d also suggest a light wetsuit top if you tend to get chilly, especially during longer snorkeling or diving sessions.
Rain showers in Hawaii can hit hard and fast, so a waterproof bag or dry sack will help keep your electronics and valuables safe. A quick-dry towel comes in handy too, whether you’re at the beach or caught in a sudden downpour.
If you’re thinking about watching surfing on the North Shore or heading out for whale watching, bring binoculars and light layers. Little things like these can make your outdoor time a lot more comfortable.
Outdoor Activities and Safety Tips
Hawaii’s warm December weather really lets you get outside, but the conditions shift a bit from island to island and depending on what you’re up to. Staying safe means you’ve got to pay attention to the ocean, the trails, and the way things change with the season.
Water Sports and Ocean Safety
In winter, the north shores of Oahu, Maui, and Kauai get those big swells. Sometimes the waves top 20 feet and strong rip currents show up. Only expert surfers should get close—everyone else should just watch from a safe spot.
For swimming and snorkeling, you’ll usually find calmer water on the south and west shores in December. Stick to beaches with lifeguards, especially if you’re not familiar with how things work locally.
Ocean temperatures stay around 75°F (24°C), which most people find comfortable. Still, currents can change fast, so skip remote beaches if there’s no safety patrol.
If you want to snorkel, book with a licensed tour company. The guides really know the safe entry points and will keep an eye on changing conditions. Basic gear like reef-safe sunscreen, fins, and a mask makes everything safer and honestly, just more fun.
Exploring Nature and Island Adventures
December’s not just about beaches. It’s actually a great time for hiking, sightseeing, and catching a wildlife tour or two. You’ll find cooler air up on the trails in spots like Waimea Canyon (Kauai) or Volcanoes National Park (Big Island), but don’t be surprised if you run into a rain shower now and then.
Pack a light waterproof jacket and shoes that grip well. Some trails get muddy and pretty slippery after it rains, especially in those lush, tropical forests.
December’s also when humpback whales start showing up in Hawaiian waters again. Most whale-watching tours leave from Maui, Lanai, or the Big Island. If you want a spot, you’ll want to book early since tours fill up fast around the holidays.
You might even catch a glimpse of snow at the highest peaks, like Mauna Kea or Haleakala. If you’re heading up there, pack some warm clothes—temperatures can drop below freezing at night.