Cozumel Weather in December: Temperature, Boat Tours and Travel Tips

Cozumel Weather in December feels more like summer than winter. While much of North America is dealing with chilly weather, Cozumel offers warm sunshine, beautiful beaches, and clear Caribbean waters. Daytime temperatures usually reach around 28°C (82°F), while the sea stays warm at 27°C (81°F). It's a great time to enjoy swimming, snorkeling, or exploring the coastline on a boat tour. You might experience a short rain shower or some wind, but sunny days are common.

December is also a busy month, especially around Christmas and New Year. Beaches and boat tours can get crowded, so booking early is a good idea. This guide covers Cozumel's December weather, sea conditions, activities, packing tips, and everything you need to plan your trip.

Cozumel Weather in December at a Glance

If you like warm weather but not too hot, December is a good time to go to Cozumel. Average daytime temperatures are 28-29°C (82-84°F) and the Caribbean Sea remains warm enough for swimming and snorkeling. Most days have plenty of sunshine, but you might see a few clouds or a quick rain shower. 

The evenings are a bit cooler, particularly if you find yourself sitting on the beach or taking a boat ride. If you're going to be on the water, bring a light jacket. December is a good month to enjoy the beaches, go diving or spend time exploring the island as hurricane season ends in November.

Not sure if December is the right month for your Cozumel vacation? Read our complete Cozumel weather guide to compare conditions throughout the year and choose a time that suits your plans.

What Does Cozumel Weather in December Feel Like ?

The weather in Cozumel Mexico in December is pleasantly tropical but not like the summer heat. Afternoons are still warm enough to swim, relax on the beach or explore the island in light clothing. You will feel the sun on your skin but the humidity is usually less uncomfortable than during the hotter months.

Mornings are usually fresh and good for a quiet walk on the beach or breakfast in the open. Evenings might be a bit cooler, especially when a Caribbean breeze starts to blow. After the sun goes down you may want a light layer if sitting by the water. The pleasant weather in December makes it easier to spend hours sightseeing without feeling drained by the heat.

Is December Good for Boat and Catamaran Tours in Cozumel?

The Cozumel weather in December  is a wonderful time to enjoy Cozumel from the water. You can still go swimming and snorkeling in the Caribbean Sea, and the good weather is perfect for sailing down the coast. You can enjoy the sunshine, the crystal clear blue water and the beautiful coastal scenery of the island.

Some of the best boat activities to enjoy in December include:

• Snorkeling trips where you can swim among colorful tropical fish and explore beautiful coral reefs.

• Reef excursions that take you to some of Cozumel's most fascinating underwater spots.

• Catamaran tours that combine relaxed sailing, refreshing swimming stops, and scenic coastal views.

• Sunset cruises where you can enjoy gentle sea breezes and watch the sky glow with evening colors.

But the sea does not always lie calm in December. Winter winds occasionally whip up choppy water, especially during cold fronts. Conditions could change during the day and some excursions could be delayed or canceled.

Planning a snorkeling adventure this December? Enjoy our private Cozumel snorkeling excursion for couples and small groups and spend a fun day swimming in the Caribbean waters and visiting beautiful reefs when sea conditions allow.

December Sea Conditions and Winter Nortes in Cozumel

December brings occasional winter cold fronts called nortes, which can cause stronger winds, cooler breezes, and rougher seas around Cozumel. However, this doesn't mean the entire month is unsuitable for boating. Many days still offer pleasant conditions for enjoying the water.

When a stronger norte arrives, you might notice a few changes.

• Choppier waters in exposed areas around the island.

• Bumpier ferry rides between Cozumel and Playa del Carmen.

• Temporary disruptions to snorkeling, sailing, and other marine activities.

Local boat operators and port authorities assess conditions and determine when excursions can operate safely. If you're staying for several days, plan your must-do boat activity early in your trip. This leaves room to reschedule if windy conditions interfere.

Planning a boat trip this December? Enjoy our Cozumel catamaran shore excursion with reef snorkeling for a relaxing day of sailing, beautiful coastal views, and snorkeling when sea conditions allow.

Cozumel December Temperature Trends from 2021 to 2025

Average temperatures for Cozumel in December were fairly consistent between 2021 and 2025 at 24°C to 25°C (75–77°F). December 2022 was the warmest of this period and 2024 was a little cooler.

For the other years there were only small differences in temperature and no significant warming or cooling trend. Occasionally, winter cold fronts brought cooler breezes, but generally the weather was warm in the daytime. With these small year-to-year variations, December is a good month to go to the beaches, sightseeing and outdoor activities of Cozumel.

How Much Does It Rain in Cozumel in December?

If you ask does it rain in Cozumel in December, the answer is yes but not as much as in the wettest months. December gets around 107 mm (4.2 in) of rain in some 10 days, but weather records differ a little. The good news is that you won’t be getting rain for a full 10 days of your vacation.

Tropical showers are normally short-lived, with the clouds moving on and the sun returning. You could have a sunny morning, a quick afternoon shower, and still a lovely evening out of doors. Don't just assume it will rain and ruin your whole day. Check the hourly forecast and get a better idea of what to expect.

December Sunshine, Humidity and Daylight Hours

December brings plenty of sunshine to Cozumel, although daylight hours are shorter than during summer. Here's what you can expect throughout the month.

• Sunshine

You can enjoy around six hours of bright sunshine daily, making beach visits and outdoor sightseeing enjoyable.

• Daylight Hours

December has roughly 11 hours of daylight, with the sun setting earlier than in summer. Morning excursions give you more time to explore.

• Humidity

Cozumel still feels tropical, and warm afternoons can sometimes feel hotter than expected. However, the humidity is generally more manageable than in summer.

Light clothing, drinking plenty of water, and starting longer activities early can make your days more comfortable.

Looking for a different way to enjoy Cozumel this December? Enjoy our Atlantis Submarine Cozumel tour and see colorful marine life and coral reefs from 100 feet below the surface, without getting wet.

Did You Know?

December has Cozumel's shortest days, with around 10 hours and 54 minutes of daylight. Yet the Caribbean Sea remains pleasantly warm at approximately 27°C (81°F).

That means you can experience shorter winter days without giving up swimming or snorkeling. Even as the sun sets earlier, the water stays comfortable enough for a refreshing dip.

Best Outdoor Activities in Cozumel in December

Cozumel is a wonderful destination in December with great weather above and below the water. Here are a few outdoor activities you can do when you visit.

• Snorkeling is a good way to find colorful tropical fish and pretty reefs of coral when the sea is right.

• Scuba diving lets you discover the world-famous underwater scenery and interesting marine life of Cozumel.

• Catamaran tours offer a pleasant day on the Caribbean Sea with relaxed sailing, swimming stops, and beautiful coastal views.

• Beach days are perfect for swimming, sunbathing, and relaxing along Cozumel's sandy shores.

• San Miguel is more comfortable to explore in the cooler evenings, especially when walking down local streets and through markets.

• Sunset cruises provide beautiful views in the evening, although sunsets happen earlier in December.

• You can cycle and see the coastal sights to enjoy beautiful island roads without the harsh summer heat.

Thinking about snorkeling during your December vacation? Check out the best places to snorkel in Cozumel to find beautiful reef spots and plan your time in the water.

Christmas and New Year in Cozumel Weather vs. Crowds

The weather in Cozumel in December stays pretty much the same all month, but the island definitely gets more crowded as the holidays approach. Early December is typically a low-key time so it’s easier to find somewhere to stay, hit the beaches and check out the popular sights without big crowds.

Things begin to change around mid-December with more visitors arriving for the festive season. During Christmas week the beaches, restaurants and tourist areas become busier and for the New Year festivities, many more visitors arrive.

Popular boat and catamaran tours can fill up quickly during this period so it’s worth booking ahead. Restaurants and other experiences may require advance reservations. Generally, early December is a better time to visit if you want a relaxed atmosphere with fewer crowds.

Looking for more ways to enjoy your December vacation? Check out the best things to do in Cozumel for ideas ranging from beach days and snorkeling to sightseeing around the island.

What to Pack for Cozumel in December

Packing for Cozumel in December is easy but don’t forget a few layers for cooler evenings and windy days. Here’s what you’ll need for a comfortable trip.

• Lightweight T-shirts and shorts for warm afternoons.

• Swimwear for beaches and snorkeling.

• Sun hat, sunglasses, and high-SPF reef-conscious sunscreen for sun protection.

• Comfortable walking shoes and sandals for exploring.

• Light rain jacket for occasional showers.

• Lightweight sweater and thin windbreaker for breezy evenings.

• Reusable water bottle to stay hydrated.

• Waterproof phone pouch and dry bag for boat trips.

Pro tip: Carry a light layer for early boat departures and sunset cruises, especially during nortes. December's UV index can still reach high levels.

Pros and Cons of Visiting Cozumel in December

December is a good month to go to Cozumel, especially if you want to get some winter sun. But there are some things to consider before planning your trip.

Why December Is a Great Time to Visit

• The weather is nice enough to make it more comfortable to explore outdoors or go to the beach.

• Warm Caribbean water is inviting for swimming, snorkeling and diving.

• Hurricane season is over, so there’s less seasonal storm worry.

• It’s fun to relax on the coast when the beach conditions are beautiful.

• The festivities surrounding Christmas and New Year create a joyful atmosphere.

What to Consider Before Booking

• The holiday crowds tend to increase, especially in late December.

• The more popular the tours and accommodation, the greater the demand.

• As it gets cooler in the evenings you might want to bring a light jacket.

• Outdoor plans can be interrupted by occasional showers.

• Nortes in winter may affect boat excursions temporarily.

• Shorter days mean less time to see the sights.

Final Thoughts

December is an excellent time to visit Cozumel, especially if you want warm Caribbean weather without the intense summer heat. You can enjoy sunny beach days, comfortable swimming conditions, and plenty of opportunities for snorkeling, diving, and sailing.

With hurricane season over, December offers pleasant conditions for exploring the island. However, occasional winter winds and busy holiday crowds can affect your plans. A little flexibility makes a difference.

Frequently Asked Questions

Is Cozumel warm in December?

Cozumel weather in December is pleasantly warm. Daytime temperatures hover around 28-29°C (82-84°F). Evenings do get cooler so a light layer may be a good idea after the sun goes down

Can you swim in Cozumel in December?

Absolutely! The Caribbean Sea stays warm at around 27°C (81°F), making swimming, snorkeling, and diving comfortable for most visitors, provided water conditions are safe.

Does it rain a lot in Cozumel in December?

December is wetter than the driest months of autumn, but not as wet as the wettest. Showers are mostly short-lived and there is still plenty of time for outdoor activities.

Are catamaran tours available in Cozumel in December?

Yes, the catamaran tours run through December, providing conditions are safe on the water. Strong winds may sometimes affect sailing schedules, and some trips may be delayed or canceled.

Is December hurricane season in Cozumel?

No, December is outside of the official Atlantic hurricane season that ends November 30. But the odd winter cold front can still bring some wind or unsettled weather.