Where to Go Scuba Diving in December

The best scuba diving in December depends on many variables. Whether you want a liveaboard or a resort stay, maybe big animals or wrecks, or even warm, easy reefs, or more challenging dives.

December brings favourable conditions to many dive regions, from the Maldives, Raja Ampat, Egypt, Thailand, and Socorro to Fiji, Belize, Mozambique, Tanzania, and the Caribbean. Some places are best for visibility and reef life, while others are better for mantas, sharks, wrecks, or relaxed resort-based diving.

This guide compares the best places to scuba dive in December by trip style, marine life, diver level, water temperature, and visibility, so you can choose where to dive in December based on the trip you actually want.

It’s worth mentioning that if you are travelling around Christmas or New Year, plan early. Liveaboard cabins and resort rooms around those dates are often fully booked well in advance, especially in popular December dive destinations.

You can also browse current Christmas and New Year Diving Trips if your dates are already fixed.

The Maldives is one of the strongest and most popular choices for scuba diving in December, especially if you want warm-water diving over Christmas or New Year. December usually marks the shift toward the northeast monsoon, bringing calmer seas and improving visibility across the atolls. This makes it a practical month for divers who want to explore several atolls in one trip rather than stay in one resort area.

Liveaboards are often the most flexible way to dive the Maldives in December. Central Atolls routes are a classic first choice, with channels, pinnacles, drift dives, and shark encounters. If you are still deciding which route fits your experience level, Divebooker’s guide to the Central Atolls of the Maldives gives a useful overview of the region’s main diving style.

Resort-based diving is also possible in the Maldives, particularly for travelers with non-diving companions or those who want a slower schedule. But for December holiday dates, liveaboards usually offer more variety and a more dive-focused itinerary. 

Wildlife highlights may include manta rays, reef sharks, nurse sharks, eagle rays, turtles, and possible whale sharks, depending on the atoll and itinerary. For a broader sense of what makes this destination special, Divebooker’s article on diving in the Maldives is useful if you’re still comparing routes and atolls.

Raja Ampat, Indonesia, is one of the best December choices for divers who care most about reefs, biodiversity, and underwater photography. December falls within Raja Ampat’s main diving season, when liveaboards are active across the region, and conditions are generally more favorable than during the windy off-season.

Raja Ampat Marine Park is less about chasing one headline animal and more about the overall density of life on the reef. That said, manta rays are generally in the area. Liveaboards are a popular choice because they can combine different parts of the region, such as the Dampier Strait and Misool, depending on itinerary length and weather. Divers comparing Indonesia’s major liveaboard regions can also use Divebooker’s Komodo vs Raja Ampat diving guide to understand how Raja Ampat differs from Komodo.

December is a great time to be here, but divers should have some experience in currents. Many of Raja Ampat’s best sites are current-fed, which is one reason the reefs support so much fish life and coral growth. That makes the destination better for confident divers with good buoyancy than for complete beginners. For broader seasonal planning across the country, Divebooker’s guide to the best time to dive in Indonesia can help readers see where Raja Ampat fits into the wider Indonesian dive calendar. For liveaboard-focused planning, The Best of Raja Ampat on a Liveaboard Diving Trip gives more context on why this region is so often explored by boat.

Egypt is one of the most practical December dive destinations for winter sun, Red Sea wrecks, colourful reefs, strong liveaboard availability, and relatively easy travel from Europe. Compared with remote destinations like Socorro or Truk Lagoon, Egypt is easier, and cheaper, to reach for many European travelers. This makes it especially attractive for Christmas and New Year as a break from the winter weather. 1

The water in December is cooler than in the Maldives or Indonesia, but visibility can be excellent, and the diving remains very active. Northern routes are popular for wrecks and reefs, including the SS Thistlegorm, Abu Nuhas, and Ras Mohammed. Divers who are especially interested in wrecks can build extra context from Divebooker’s guide to the best wrecks in the Red Sea.

More experienced divers may prefer offshore routes such as Brothers, Daedalus, and Elphinstone, where deeper walls, blue-water entries, current, and exposed sites make the diving more demanding. It’s also the peak season for oceanic white tip sharks. Diving at Brothers Islands is a good example of why Red Sea liveaboards can appeal to advanced divers as much as to reef and wreck lovers. If you are new to the region, Divebooker’s article on liveaboard diving in Egypt is a useful next step for understanding the areas and types of diving that the various itineraries cover.

The Andaman Sea liveaboard season is already well underway in December, making the Similan Islands, in Thailand, a strong December choice. Conditions are more predictable after the national park reopening period, which comes at the end of the Southwest monsoon. For divers looking for an easy to plan Southeast Asia liveaboard, the Similans are a practical option, with direct access from most international hubs.

Liveaboards usually combine the Similan Islands with nearby highlights such as Koh Bon, Koh Tachai, and Richelieu Rock. Divers can expect granite boulders, reef slopes, swim-throughs, schooling fish, and possible pelagic action. While mantas and whale sharks are possible, especially around sites such as Koh Bon and Koh Tachai, they are only just beginning to arrive in the area. December, though, is a strong reef-and-liveaboard month, with excellent life on the reefs.

The Similans also work well in a broader Southeast Asia planning context. Divers deciding between Thailand, Indonesia, and the Philippines can use Divebooker’s comparison of the best diving in Southeast Asia to understand why Thailand is often the easier, more accessible liveaboard choice, while Indonesia usually offers more remote biodiversity-focused itineraries.

Socorro Island, in Mexico, is one of December’s best advanced liveaboard destinations. Part of the Revillagigedo Archipelago, Socorro is remote, in the open ocean, and focused on pelagic encounters. This is not a casual reef trip; it is best for experienced divers who are comfortable with blue water, current, deeper profiles, and long crossings.

December sits within the liveaboard season and can offer encounters with giant Pacific manta rays, dolphins, sharks, tuna, and other large pelagics. Giant Pacific mantas are often the main reason many divers choose Socorro. It’s famous for close, curious manta interactions, and December is the peak period for this. Divers comparing boats and itineraries can use Divebooker’s Socorro liveaboard guide to understand how vessel choice can shape the trip.

Socorro is for advanced divers with experience in blue water and currents. Newly certified divers should add it to their list and look for somewhere to gain experience first. For a broader view of how Socorro fits into Mexico’s dive calendar, Divebooker’s Mexico seasonal diving guide is a useful companion piece. Readers who want to compare Mexico’s liveaboard options more broadly can also continue to liveaboard diving adventures in Mexico.

Mozambique suits divers who want warm Indian Ocean diving with a stronger chance of big-animal encounters. December falls within the warmer season, when whale sharks gather with the plankton blooms in areas such as Tofo and Bazaruto. The shark diving is also impressive farther south around Ponta do Ouro, with bulls sharks, tiger sharks, and hammerheads all possible. Ragged-tooth sharks are also congregating around Sodwana Bay during this period.

The same plankton-rich water that attracts manta rays and whale sharks in Mozambique also reduces visibility, and December is within the wet season, so some weather disruption is possible. But Mozambique works well for flexible divers who are interested in marine life and are comfortable with variable visibility, weather, and sea conditions.

For divers looking for clear Caribbean water, dramatic walls, and a balance between comfort and adventure, Turks and Caicos is a great option. The diving here is known for steep drop-offs, healthy reef systems, and regular reef shark encounters, especially around sites off Providenciales, West Caicos, French Cay, and Grand Turk.

December usually brings warm water and good visibility, making it a practical choice for divers who want holiday diving without the logistics of a remote expedition. It can work for both liveaboard-style travel and resort-based diving, depending on the itinerary and the type of trip that you prefer. For many travelers, the appeal is that Turks and Caicos offers classic Caribbean conditions with plenty of wall diving and shark activity to keep experienced divers interested.

Reef sharks are one of the main highlights, but divers will also see turtles, eagle rays, barracuda, groupers, schooling reef fish, and colorful sponges along the walls. The wider winter season can also bring humpback whales through the region, especially later in winter, though this should be treated as a bonus rather than a dive-plan feature.

Grand Cayman, Cayman Islands, is a good choice for resort-based diving, especially for mixed-level groups. The island is known for easy logistics, warm water, consistently good visibility, and a wide range of dive sites that can suit newer divers, experienced divers, and non-diving companions on the same trip.

December falls well into dry season, with great weather, so it is a good time to enjoy Grand Cayman’s walls, reefs, wrecks, and shallow marine-life encounters. The North Wall and East End offer dramatic topography, while easier reef sites and shore-access options make the island practical for divers who do not want an intense liveaboard schedule. Stingray City is not a standard scuba highlight in the same way as a wall or wreck dive, but it remains one of the Cayman Islands’ most recognizable marine encounters.

For divers who want more variety, the wider Cayman Islands also include Little Cayman and Cayman Brac. Little Cayman is especially well known for Bloody Bay Wall, while Cayman Brac adds wreck-diving appeal with the Captain Keith Tibbetts. 

If you want warm South Pacific water, colorful reefs, and a trip that can work well as either a resort stay or a more dive-focused itinerary, then Fiji is worth considering. 

December sits in Fiji’s warm season. This also means more rain, so conditions can be more variable than in the dry-season months. That said, the diving remains rewarding, especially for divers interested in soft coral growth, reef life, and shark encounters. Bligh Water is especially attractive for photographers because the soft corals are so healthy. The reef’s character changes through the day depending on current, light, and how fully the soft corals are open.

Beqa Lagoon adds another angle for divers interested in shark diving, with bull sharks in the area year-round. Fiji has a good choice of resort-based options across the islands.

Fiji in December is less about one single event and more about variety. It can suit divers who want colorful reefs, warm water, relaxed island time, and the possibility of adding more adventurous sites depending on experience level. For holiday travel, it also works well for couples or groups where not everyone wants the same number of dives every day.

Belize gives divers both resort-based and liveaboard options, with access to reefs, atolls, walls, and the famous Blue Hole. And December is a great time to visit, with warm days and cool evenings, typical of the dry season in the area.

The Belize Barrier Reef system gives divers plenty of variety. The Blue Hole is the headline site, but many divers find that the surrounding reefs, walls, and atolls are just as rewarding. Turneffe Atoll, Lighthouse Reef, and Glover’s Reef all have reef sharks, turtles, eagle rays, barracuda, and groupers, with sites ranging from coral gardens to steep wall dives. Divebooker’s article on the outer atolls and cays of Belize is a useful supporting read for understanding why the country is more than just one famous dive site.

Belize also works well for December travelers who want a more flexible Caribbean trip. Resorts suit divers who want land-based flexibility and comfort, while liveaboards are useful for reaching remote atolls and maximizing dive time. Around Christmas and New Year, availability can tighten, so this is another destination where early planning helps.

December is generally the best time of the year to visit Zanzibar. The southeast monsoon has passed, the northeast monsoon has not yet generated swell, and visibility is at its annual best. For divers, there is warm water, relaxed resort logistics, and an East Africa trip that is not only about diving. Sites such as Mnemba Atoll, with reefs, turtles, reef fish, and gentle drift dives, make the destination suitable for mixed-experience groups.

Mafia Island is, without doubt, the most famous whale shark destination in Tanzania. The season runs from October to March, but November and December are generally when the numbers peak. That makes Tanzania a big draw for divers who want a resort-based trip with the option to add a more wildlife-focused extension, rather than a destination built around a packed liveaboard schedule.

At the opposite end of the scale, Truk Lagoon (also known as Chuuk Lagoon), Micronesia, is all about diving. Wreck diving to be specific. It offers a very different type of trip from the Maldives, Raja Ampat, or the Caribbean: instead of reefs and relaxed resort diving, Truk is about World War II wrecks, history, advanced dive profiles, and a sense of underwater exploration.

December falls solidly within the dry-season window, with warm water and generally favorable conditions. The lagoon’s sheltered geography helps protect the many wreck sites from both currents and weather, but the diving can still be serious. You can explore cargo ships, aircraft, engine rooms, holds, historical artifacts, coral growth, and marine life that now lives around the wrecks. Most wrecks can be explored on recreational profiles, but some of the most rewarding dives benefit from deeper profiles, nitrox, and careful planning.

Truk Lagoon, Micronesia, is one of the world’s great wreck-diving destinations and a strong December choice for divers who want a trip built almost entirely around diving. It is often described as advanced or technical, but that can be misleading. Many wrecks have sections within recreational depths, currents are usually mild, and visibility is often good.

If mantas are the main reason for your trip, then Socorro is your best choice. December is within the Socorro liveaboard season, and with giant Pacific mantas as one of the headline encounters, their arrival through November means you are all but guaranteed encounters.

The Maldives and Raja Ampat, in Indonesia, are also strong choices, but manta sightings depend on your liveaboard itinerary or resort location currents, conditions, and plankton movement. In Thailand, the Similan Islands can provides the opportunity to see mantas around sites such as Koh Bon and Koh Tachai, though later months are generally better. Mozambique can also be considered for manta encounters, but sightings are less predictable, and visibility can vary. 

Best picks: Socorro Island, Maldives, Raja Ampat, Mozambique

Good to know: Mantas are never guaranteed, even in the right season.

For shark-focused December diving, Socorro Island is again the most adventurous option, with multiple species of sharks on most dive sites, alongside mantas, dolphins, tuna, and other pelagics.

Egypt is a good choice for divers who want Red Sea reefs, wrecks, and offshore liveaboard routes. Sites around Brothers, Daedalus, and Elphinstone are more suitable for experienced divers because of depth, current, and exposed conditions.

Mozambique is better for divers who are comfortable with variable Indian Ocean conditions and want whale shark, manta, or shark potential rather than guaranteed encounters.

Turks and Caicos and Fiji are warmer-water options with reef shark or shark-dive potential, depending on the itinerary.

Best picks: Socorro Islands, Egypt, Mozambique, Turks and Caicos, Fiji

Good to know: Choose the route carefully. “Shark destination” does not mean every dive is a shark dive.

Truk Lagoon, Micronesia is the clear December pick for wreck divers. It is a specialist destination, best suited to divers who want WWII wrecks, history, deeper profiles, and a more focused dive trip.

Egypt is the more accessible wreck option, especially for divers interested in Red Sea sites such as the SS Thistlegorm, Abu Nuhas, and northern Red Sea routes. Cayman Brac can also be mentioned under the wider Cayman Islands for wreck interest.

Best picks: Truk Lagoon, Egypt, Cayman Brac

Good to know: Wreck diving rewards good buoyancy, nitrox training, and conservative depth planning.

For easier December diving, Grand Cayman, Cayman Islands is one of the safest recommendations. It has warm water, good visibility, short boat rides, and plenty of sites for mixed-level groups.

Belize is also a good warm-water choice, especially for divers who want reefs, atolls, and resort or liveaboard flexibility. The Maldives can work well for newer divers if they choose resort-based diving or easier liveaboard routes, but current-heavy itineraries are better left to more experienced divers.

Best picks: Grand Cayman, Belize, Zanzibar, Maldives resort options, easier Egypt routes 

Good to know: Beginner-friendly does not mean every site is easy — check currents, depth, and boat procedures before booking.

For reef and wide-angle photography, Raja Ampat is the strongest choice. It offers dense reef life, soft corals, schooling fish, manta possibilities, and dramatic reef scenes.

Fiji is excellent for soft corals and colorful reef compositions, especially around areas such as Bligh Water. Truk Lagoon is the standout choice for wreck photography, while the Maldives works well for sharks, rays, channels, and blue-water scenes. Belize adds Caribbean reef walls, atolls, and the Blue Hole. Mozambique is better for marine-life photographers who can work with variable visibility, while Raja Ampat and Fiji are stronger for colorful reef scenes. 

Best picks: Raja Ampat, Fiji, Truk Lagoon, Maldives, Belize, Mozambique 

Good to know: December conditions can be excellent, but visibility still varies with plankton, current, weather, and site choice.

December is a month where dive trips can go in very different directions. The better question is not “Where is December diving best?” but “Which December destination matches the trip you actually want?”

If you want maximum dive time, look at liveaboards. If you are traveling with non-divers, Grand Cayman, Fiji, Belize, or the Maldives may be easier to shape around everyone’s plans. If you want big animals or wrecks, be honest about experience level before choosing Socorro, Truk Lagoon, or offshore Red Sea routes.

December rewards early planning more than almost any other month. Liveaboard cabins and resort rooms around Christmas and New Year are often fully booked early. Once your dates are fixed, compare the destinations by trip style first, then by marine life. That usually makes the right choice much clearer.

For fixed holiday dates, start with current Christmas and New Year Diving Trips, then narrow the options by diver level, route type, and how adventurous you want the trip to feel.