Hawaii Weather in December: Temperatures, Rain & Travel Tips

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If you're researching hawaii weather in december, expect Honolulu to average a high of 77.7°F (25.4°C), a low of 70.9°F, and eight rainy days during the month. December is also Honolulu's wettest month, but with sunshine averaging 9.9 hours a day, you can still plan plenty of beach time, outdoor meals, and sightseeing around the occasional shower.

For Americans hoping to trade cold mornings for warm air, Hawaii makes a tempting winter escape. You can spend time outdoors without the intense summer heat, enjoy the coast, and take a break from winter layers. Still, December isn't a month when you should assume every day will be dry, every beach will have calm water, or every island will have the same weather.

The figures in this guide are 20-year averages for 2006–2025, and the detailed weather data covers Honolulu on Oahu only. Conditions vary across Hawaii, especially between the wetter windward sides and the generally drier, sunnier leeward sides. Use these averages to plan your trip, then check the local forecast before heading out.

Hawaii Weather in December: the quick answer

Honolulu's December weather is warm, with an average high of 77.7°F (25.4°C) and an average low of 70.9°F. You can usually pack light clothing for daytime activities, but a thin layer can feel good after sunset, particularly if you're sitting outside near the water.

Rain is the main difference between December and a typical dry-weather fantasy. Honolulu averages eight rainy days in December, and the month receives 62 mm (2.4 inches) of rainfall. That doesn't mean it rains continuously for days. Rain may arrive as a passing shower, affect one part of the island more than another, or interrupt an outdoor plan for a while.

Sunshine averages 9.9 hours a day. That's still a generous amount of daylight for sightseeing, beach visits, and scenic drives, although cloud cover and showers can change the feel of a particular day.

These monthly averages come from the same 20-year period, 2006–2025, so they offer a useful comparison. December is a little cooler than November, while January has a slightly lower average high and low than December. The figures don't predict the weather on your exact travel dates, though.

Honestly, I wouldn't rule out December because of the rain. I'd plan for some flexibility instead of building the entire trip around uninterrupted sunshine.

Hawaii Weather in December: is it a good time to visit?

For many travelers, yes. December combines warm temperatures with a winter-holiday atmosphere, and it can be a welcome change for people coming from colder parts of the United States. You can explore Honolulu, walk along the coast, enjoy outdoor dining, and fit in beach time without needing every day to be perfectly sunny.

It works especially well for travelers who value outdoor activities and don't mind adjusting their schedule. If a shower passes through in the morning, you might move a scenic stop to later in the day or spend that time at a museum, shop, or restaurant. The best approach is to have a few options rather than one fixed activity for every part of the day.

December is less suitable for someone who wants guaranteed dry weather. A monthly average can't promise sunshine on your dates, and the island's different landscapes can experience different conditions at the same time. If rain would spoil your entire trip, choose your dates carefully and keep expectations realistic.

There is another consideration: holiday demand. Christmas and New Year's travel can make flights, rental cars, and popular accommodations harder to arrange at the price or location you want. Book the essentials early, especially if your dates aren't flexible. You can leave some casual meals and smaller activities open, but don't assume the best lodging options will still be available at the last minute.

Who should visit Hawaii in December?

• Winter-weary travelers: Honolulu's average high of 77.7°F gives you a warm-weather alternative to many mainland winter destinations.
• Families: Warm daytime conditions can suit beach visits and outdoor sightseeing, provided you check surf and weather advisories.
• Couples: Coastal walks, sunset views, and outdoor dinners can fit a relaxed winter break.
• Flexible explorers: Travelers who can switch activities when showers arrive will have an easier time making the most of the month.
• Holiday visitors: December can work well if you're willing to plan flights and accommodation ahead of time.

Who might want to choose another month?

Consider another travel period if you need the driest possible conditions for a tightly scheduled outdoor event. December is Honolulu's wettest month, so rain deserves a place in your plans. Travelers who dislike humidity may also find the conditions uncomfortable, with humidity around 75%.

If you have very limited time and want every day dedicated to hiking, boating, or another weather-sensitive activity, you may prefer a trip with more flexibility or a different travel window. No month guarantees perfect weather, but December's rainfall pattern is worth taking seriously.

For a wider look at warm-weather options, compare Hawaii with Florida weather in December and our guide to where it's warm in December. The right choice depends on your budget, the activities you enjoy, and how much weather uncertainty you're comfortable with.

How warm is Hawaii in December?

Honolulu averages a daytime high of 77.7°F (25.4°C) in December. Its average low is 70.9°F, so the typical difference between day and night is fairly modest. You can generally plan for lightweight clothing during the day and bring a light extra layer for evenings.

Those numbers describe average conditions, not a daily guarantee. A cloudy or rainy afternoon can feel different from a sunny one, and breezes along the coast may make the air feel cooler than the temperature suggests. Direct sunshine can also feel strong, even when the air doesn't seem particularly hot.

For most sightseeing, you won't need a bulky winter coat in Honolulu. Think breathable shirts, shorts or lightweight trousers, comfortable walking shoes, and clothes that dry reasonably quickly. If you plan to spend a long time outdoors, sun protection matters just as much as choosing comfortable fabrics.

Is the ocean warm enough for swimming?

Honolulu's warm December air makes beach time appealing, but air temperature alone doesn't tell you everything about swimming conditions. Water comfort varies, and waves, currents, and local warnings matter more than the weather averages in this guide.

Check beach conditions before entering the water, and follow posted signs and lifeguard instructions. Winter surf can be powerful at exposed beaches, especially on parts of the islands facing north and west. A sunny sky does not automatically mean safe swimming.

If you are traveling with children or inexperienced swimmers, choose a beach with suitable conditions on the day rather than relying on a beach's reputation. Ask a lifeguard when one is available, and don't enter the water if the surf looks rough or an advisory is in effect.

How rainy is Hawaii in December?

Rain is the biggest weather detail to understand before booking a December trip to Honolulu. The city averages eight rainy days, and December's rainfall reaches 62 mm (2.4 inches). The month is Honolulu's wettest, so you should expect the possibility of showers even if your main goal is to spend time outdoors.

Rainy days don't necessarily mean all-day rain. A brief shower might affect one activity and leave the rest of your schedule intact. At other times, clouds or persistent rain may make a hike, a long drive, or a beach afternoon less appealing. Monthly averages can't tell you which pattern you'll encounter during your visit.

The island's geography matters. Windward areas, generally on the north and east sides, tend to receive more rain. Leeward areas, generally on the south and west sides, are usually drier and sunnier. These are broad patterns rather than guarantees for a specific beach, neighborhood, or day.

When you're choosing accommodation, think about what you want to do each day. If you mainly want beach time and outdoor meals, the typically sunnier leeward side may suit your plans. If you want lush scenery and don't mind occasional wet weather, windward areas can still be appealing. Either way, check the forecast for your actual destination.

What should you do if it rains during your trip?

Keep a short list of indoor alternatives. Honolulu has shops, museums, restaurants, cultural attractions, and other places where you can spend time away from the rain. You don't need to turn a shower into a lost day.

• Move flexible beach time to a clearer part of the day if the forecast allows.
• Keep a light rain jacket or compact umbrella in your day bag.
• Wear footwear that can handle wet pavements and short walks in the rain.
• Save a museum visit, shopping stop, or relaxed meal for a period when outdoor plans look uncertain.
• Check road and trail conditions before driving to a remote viewpoint or starting a hike after heavy rain.

One mistake is treating the monthly rainy-day average as a promise that the other days will be completely dry. It isn't. The figure summarizes long-term weather observations; it doesn't map out the showers for your particular week.

How much sunshine does Hawaii get in December?

Honolulu averages 9.9 hours of sunshine a day in December. That's plenty of daylight for outdoor plans, and it helps explain why Hawaii can still feel like a winter escape during its wetter month.

Sunshine hours are a monthly average, not a promise of cloud-free skies from morning to evening. A day may begin bright and turn cloudy, or a shower may pass before the afternoon clears. Your experience will depend on local conditions and the timing of the weather.

For sightseeing, start outdoor activities earlier when practical. Morning plans can leave room to adjust later, although you should always check the forecast rather than assuming mornings will be dry. If you're planning photography, beach walks, or scenic drives, keep some flexibility in the schedule.

Sun protection should stay in your day bag even when clouds are around. Use sunscreen, wear sunglasses, and consider a hat when you'll be outside for long periods. The cooler feel of the air can make it easy to underestimate the sun.

Is Hawaii humid in December?

Honolulu's humidity is about 75% in December. That can make the air feel sticky, particularly when you're walking in direct sun or spending time outdoors without a breeze. If you're used to dry winter weather on the mainland, you may notice the difference soon after arriving.

Choose lightweight clothing that breathes well, drink water throughout the day, and take breaks in the shade. For hikes and longer walks, pace yourself rather than trying to fit every activity into the hottest part of the day.

Air conditioning can be welcome after a humid afternoon, so check accommodation details if you know you sleep better in a cool room. If humidity bothers you, avoid packing only heavy fabrics, and don't assume that a cloudy day will feel dry.

Honestly, humidity is one of those things people sometimes overlook when they picture a winter beach trip. It doesn't have to be a deal-breaker, but it's worth considering if sticky weather makes you uncomfortable.

What should you pack for Hawaii in December?

Pack for warm weather, possible rain, and a mix of indoor and outdoor activities. You don't need a suitcase full of heavy layers for Honolulu's average December temperatures, but you do want enough variety to stay comfortable when conditions change.

• Lightweight shirts and tops: Breathable fabrics are useful for warm, humid days.
• Shorts and lightweight trousers: Choose a mix that suits beaches, sightseeing, and restaurants.
• A light rain jacket: It takes up little space and can be handy during showers.
• Comfortable walking shoes: Pick footwear that works for city walks and wet pavements.
• Sandals: Useful for casual outings and beach visits, but not a replacement for proper shoes on rough trails.
• Swimwear: Bring it if beach time or swimming is part of your plan, while checking conditions before entering the water.
• Sun protection: Pack sunscreen, sunglasses, and a hat.
• A light evening layer: A thin shirt or jacket can be comfortable after sunset or in air-conditioned places.
• A small day bag: Keep water, sunscreen, and rain protection together while sightseeing.

Leave the heavy winter coat at home unless you have another destination on the same trip that calls for it. For Honolulu, practical layers and rain protection are more useful than bulky cold-weather gear.

What should you wear for dinner and evening activities?

Casual, breathable clothes are usually a sensible choice for relaxed evenings. If you're planning a nicer restaurant, check its dress expectations rather than assuming every place has the same rules. A light layer is useful for indoor spaces with strong air conditioning, too.

For outdoor events, choose footwear that you can comfortably walk in and bring a rain layer if the forecast suggests showers. A warm afternoon doesn't guarantee that you'll feel equally comfortable sitting outside later.

Which side of Hawaii is best in December?

There isn't one answer for every traveler, and the available detailed numbers in this guide are for Honolulu on Oahu. Across the Hawaiian Islands, broad weather patterns help explain why one area can be sunny while another receives rain.

Windward areas, generally on the north and east sides of the islands, tend to be wetter. Leeward areas, generally on the south and west sides, are usually drier and sunnier. Mountain terrain affects how clouds and rain move, so conditions can change over relatively short distances.

If dry beach weather is your priority, consider staying in a leeward area and checking the local forecast before each outing. If you prefer green landscapes, waterfalls, and lush scenery, windward areas may appeal to you, but don't assume they'll be dry simply because another part of the island is sunny.

These patterns are useful for planning, not a substitute for a location-specific forecast. They also shouldn't be used to assume that every island has the same December temperatures or rainfall as Honolulu. Maui, Kauai, and the Big Island have their own local conditions, and this guide doesn't provide numerical weather averages for them.

Hawaii weather in November vs. December vs. January

Comparing the surrounding months can help you decide when to travel. In the 2006–2025 averages for Honolulu, November has the warmest average high of these three months, December has the highest number of rainy days, and January has the lowest average high and low. Sunshine averages 10.2 hours a day in November, 9.9 in December, and 10.2 in January.

The differences are fairly modest in temperature, so don't expect December and January to feel like completely different seasons. Both are warm by the standards of much of the mainland United States. The bigger planning question is whether December's holiday period and rainfall pattern fit your budget, schedule, and preferred activities.

Is November better than December for Hawaii?

November averages a high of 79.9°F (26.6°C), a low of 73°F, seven rainy days, and 10.2 hours of sunshine a day in Honolulu. Compared with December, it is slightly warmer on average and has fewer rainy days in the long-term figures.

If your schedule is flexible and you prefer the warmer of these two monthly averages, November may be worth considering. December still offers warm conditions, though, and the averages alone can't tell you which month will have better weather during your actual dates.

See the full Honolulu weather guide for November before making a decision.

Is January better than December for Hawaii?

January averages a high of 76.8°F (24.9°C), a low of 69.4°F, seven rainy days, and 10.2 hours of sunshine a day in Honolulu. Its average high and low are slightly lower than December's, while the long-term average shows one fewer rainy day.

January may suit travelers who can avoid the busiest holiday dates and want a winter getaway after the year-end rush. But you shouldn't choose it based on a promise of dry weather. The monthly averages are similar enough that your exact dates and local forecast still matter.

Check the Honolulu weather guide for January for the full comparison.

What are the best things to do in Hawaii in December?

Honolulu's weather makes a mix of activities a sensible choice. Plan some time at the beach, but don't make swimming the only reason for leaving your accommodation. Add walks, cultural stops, local food, scenic drives, and indoor alternatives so a change in the weather doesn't take over the trip.

• Spend time along the coast: Walk the shoreline, enjoy the views, or relax on the sand when conditions are suitable.
• Explore Honolulu: Combine neighborhood walks, shopping, meals, and cultural attractions instead of spending every day in one place.
• Plan scenic drives: Choose routes that suit the weather, and avoid risky roads or trails after heavy rain.
• Enjoy local food: Outdoor dining can be lovely in warm weather, but keep an indoor option in mind if showers arrive.
• Look for seasonal events: Check official event calendars for dates, locations, ticket rules, and any booking requirements.
• Leave room for rest: Humidity and walking can be tiring, so a relaxed afternoon may be more enjoyable than a packed schedule.

If hiking is a priority, research the specific trail before setting out. Rain can make paths slippery and can affect stream crossings or access roads. Don't continue just because the activity was booked in advance; safety and current conditions should decide.

For ocean activities, use local guidance rather than judging the water from the shore alone. Strong surf and currents can make a beach unsuitable for swimming even when the sky is clear. Follow lifeguard advice and official alerts.

How should you plan a December trip to Hawaii?

Start with flights and accommodation, especially if you want to travel around Christmas or New Year's. Compare the total cost of the trip rather than looking at airfare alone. Lodging location can affect how easily you reach beaches, restaurants, and attractions, so think about your daily plans before booking.

Next, build a flexible itinerary. Put activities that depend heavily on weather in open slots when possible, and have indoor alternatives ready. You can reserve tours that are likely to sell out, but read cancellation and rescheduling policies before paying.

Renting a car may help if you want to explore beyond central Honolulu, but it isn't necessary for every traveler. Consider where you're staying, how comfortable you are with driving, parking costs, and whether public transport or organized tours cover your plans. Don't book a car automatically if you'll spend most of your time nearby.

Use a planning checklist to keep the practical details together. Our trip planner can help you organize the main parts of your trip, from dates and accommodation to activities and weather checks.

Which bookings should you make early?

• Flights: Compare dates and arrival times, especially around major holidays.
• Accommodation: Choose your preferred area before the most suitable options disappear.
• Rental cars: Reserve one if your itinerary genuinely requires it, and check the cancellation terms.
• Popular tours: Check availability and weather-related cancellation policies before booking.
• Special meals or events: Make reservations when the venue recommends them, particularly for holiday dates.

Keep the rest of the schedule loose. You don't need to reserve every meal or plan every hour. A little breathing room makes it easier to change plans if rain or surf conditions get in the way.

Where can you check the Hawaii weather forecast?

Use long-term averages to understand the season and a current forecast to make decisions for specific days. The National Weather Service in Honolulu provides local forecasts, weather alerts, and marine information. It's a useful place to check conditions before hiking, driving to a viewpoint, or planning time on the water.

For broader trip information, the official Go Hawaii tourism website can help you explore destinations and activities. Use official local guidance for current conditions, especially when weather affects beaches, trails, or ocean tours.

Check the forecast again close to departure and during your stay. A seasonal guide can't tell you if a shower will arrive on your planned beach day, and a sunny forecast doesn't replace checking surf advisories before swimming.

Is Hawaii worth visiting in December?

For travelers who want warm weather during the American winter, Honolulu can be a strong choice. Its December average high is 77.7°F (25.4°C), its average low is 70.9°F, and sunshine averages 9.9 hours a day. Those conditions leave plenty of room for outdoor activities, even though rain is more likely than in the surrounding months according to the long-term averages.

Go with realistic expectations. December is Honolulu's wettest month, with eight rainy days and 62 mm (2.4 inches) of rainfall on average. Humidity is around 75%, and conditions can differ across the island depending on terrain and wind direction.

Pack light clothing, bring a rain layer, protect yourself from the sun, and check local conditions before outdoor adventures. Book the big pieces of your holiday early, especially for the festive period, but keep your daily schedule flexible.

If that sounds like your kind of trip, December can be a rewarding time to visit. If you need guaranteed dry skies or dislike humid weather, compare the surrounding months and other warm-weather destinations before committing. The best trip isn't the one with perfect averages on paper; it's the one whose conditions, cost, and pace fit what you actually want to do.