December is one of the best months to visit Cancun, but the experience changes dramatically as the month goes on. Early December often offers excellent weather with lower humidity and fewer crowds than the holiday peak, while Christmas and New Year’s bring the year’s highest prices, busiest beaches, and the most competition for dinner reservations and tours. The biggest wild card is not usually rain, but winter cold fronts that can bring wind and rougher sea conditions.
The Verdict: If you can travel during the first two weeks of December, do it. You get the benefits of the transition into the drier season without the peak holiday price hikes or the need to fight for a lounge chair. However, if you are visiting for the holidays, you need to be a “pro” at planning. Expect many popular resorts to sell out, especially from about December 20 through New Year’s, and realize that your flexibility regarding dinner times and tour dates will be limited if you don’t book ahead.
Is December a Good Time to Visit?
I am often asked if December is the “perfect” month. It is certainly one of the most comfortable months for ruins, cenotes, golf, and day trips because you aren’t battling the 95°F heat of July. However, it requires a different mindset than a summer visit. You are trading the guarantee of hot, calm water for much more pleasant air temperatures and a festive atmosphere. While the Atlantic hurricane season officially ends on November 30, systems can occasionally form outside those dates, though it is very rare. Your main concern in December is usually a “Norte” (cold front) rather than a tropical storm.
Early December vs. Christmas and New Year’s
- Early December: This is the relative sweet spot. The humidity is much lower than in summer and early fall, but the “masses” haven’t arrived. You can often find decent rates and a bit more breathing room at the popular sites like Chichén Itzá.
- Mid-December: Around December 16, the holiday energy begins to build. This is when the Mexican tradition of “Las Posadas” begins, and you’ll start to see more families arriving from both the US and mainland Mexico.
- Christmas and New Year’s Weeks: This is peak season. You will be dealing with long waits, higher rates, and less flexibility. If you haven’t booked your airport transfer and major dinner reservations at least a month out, you are going to face some stress.
Weather, Wind, and Water
In December, average daytime highs are around 82°F (28°C), while evenings drop to a comfortable 70°F (21°C). You will likely want a light sweater or a linen jacket for outdoor dinners or evening walks on the beach.
Swimming vs. Beach Conditions: This is a crucial distinction. In Cancun, a sunny day does not always mean an easy swim day. The “Nortes” can bring strong winds that churn up the ocean. You might have a beautiful cloudless sky, but the beach will have red flags, meaning the undertow is too dangerous for swimming. The east-facing beaches in the Hotel Zone are particularly susceptible to this. If you have small children, keep an eye on the flag color every morning.
Pool Temperatures: This is something families often overlook. While the air temperature is great, unheated pools can feel surprisingly cool in December, especially after a cold front has passed through. If lounging in the pool is your primary goal, it is worth checking if your resort has a heated pool option.
Sargassum (Seaweed): December is generally one of the better periods for clear water. The worst sargassum problems are more common from spring through fall, but winter is not a total guarantee of clear beaches. While the probability of a “clean” beach is high in December, nature is unpredictable.
Who December is Best For
Families and Holiday Travelers: If you want a tropical Christmas, Cancun goes all out. However, be aware of “Nochebuena” (Christmas Eve). This is the main celebration in Mexico. Many restaurants change their operations, offering only expensive set menus with required reservations. Some smaller local spots may close early so staff can be with their families.
Adventure Seekers and History Buffs: This is the prime time for the inland ruins. Walking through Tulum or Cobá is a joy when the humidity is lower. It’s also a great time for the eco-parks like Xcaret or Xel-Há, though the water in the underground rivers can feel a bit brisk.
Divers and Marine Enthusiasts: Note the geography here. December is the start of Bull Shark season, but this primarily happens in Playa del Carmen (about an hour south of Cancun). This is a specialized activity for certified, experienced divers. If you are looking for Whale Sharks, you are in the wrong season; those trips run in the summer, generally from June through mid-September.
Cultural Highlights and Holiday Logistics
Las Posadas: From December 16 to 24, you may find local celebrations in neighborhoods and public spaces, especially in downtown areas like Parque de las Palapas. These involve processions and traditional food. It is a wonderful way to see the “real” Mexico outside the resort walls.
New Year’s Eve: If you plan to be in the Hotel Zone, the “Party Center” will be incredibly crowded. Most high-end restaurants will have gala dinners with significant cover charges. If you want a more low-key New Year’s, consider a dinner in downtown Cancun or a quiet night on Isla Mujeres.
Common December Planning Mistakes
- Underestimating the Wind: I’ve seen many travelers get frustrated because they can’t take a boat to Isla Mujeres. If the wind is too high, the port authority closes the harbor. Always have a “land-based” backup plan like a trip to a cenote, which is sheltered from the wind.
- Booking Tours Too Late: For the last two weeks of the month, the best guides and the best boat captains sell out. Book your “must-do” excursions before you leave home.
- Assuming Constant Heat: I’ve seen people arrive with nothing but shorts and t-shirts and end up buying expensive sweatshirts at the hotel gift shop because the evening breeze off the water was colder than they expected.
December vs. Other Months
- December vs. November: December is drier and less humid. While November still carries a lingering hurricane risk, December is safely out of the storm season. However, November water is slightly warmer.
- December vs. January: Both have similar weather, but December is much more festive and “busy.” January can feel a bit more relaxed once the New Year’s crowds depart, but the water in January is at its absolute coldest.
December Packing List
- The “Norte” Layer: A light windbreaker or a medium-weight pashmina for the evenings.
- Smart Casual Attire: Many resorts and upscale restaurants require “Resort Elegant” dress for Christmas and New Year’s Eve dinners. This usually means long pants and collared shirts for men.
- Walking Shoes: If you are visiting ruins or walking the long stretches of the Hotel Zone, you need more support than a flip-flop provides.
- Reef-Safe Sunscreen: The sun is still strong, even if the air feels cooler. Protect the environment and your skin.
Frequently Asked Questions
Is the water warm enough for kids?
The ocean stays around 79°F. Most kids find it fine, but they might get out sooner than they would in July. If they are sensitive to cold, look for a resort with a heated pool.
What happens if it rains?
Rain in December is usually caused by cold fronts and tends to be shorter-lived than the tropical downpours of October. If it is a “washout” day, the Maya Museum in the Hotel Zone or the indoor shopping malls like Puerto Cancun are great escapes.
Are whale shark tours available?
No. The season is strictly regulated and ends in September. Anyone offering a whale shark tour in December is not being honest with you.
Is everything open on Christmas Day?
Most major tourist attractions, eco-parks, and resort restaurants remain open, but some smaller family-owned businesses in the city may close.
