Mary ToursMérida · Yucatán

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Yucatán in December and over New Year: cooler weather, flamingos and day trips

December is one of the most pleasant months in Yucatán: hurricane season is over, the nortes bring temperatures down and it's peak flamingo season in Celestún, which CONANP says runs from November to February. It's also high holiday season, so book your day trips in advance.

Updated · NearVisual editorial team for Mary Tours

Colonial street in Valladolid, Yucatán

Mary Tours × NearVisual

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Bacalar, Isla Mujeres and Tulum with a per-person coupon. Groups of 4 or more.

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Why December works so well

  • No hurricanes: the Atlantic season ended on November 30, according to Mexico's National Weather Service.
  • Cooler weather thanks to the nortes, ideal for walking ruins and towns.
  • Flamingos: peak season in Ría Celestún, where they gather with Los Petenes in winter.

The nortes can bring cloudy or windy days on the coast; check the forecast before a beach or boat day.

A suggested December holiday plan

  1. A day in downtown Mérida, with its holiday atmosphere.
  2. Chichén Itzá, Izamal and Valladolid, in cool walking weather.
  3. Celestún, at the height of flamingo season.
  4. The Santa Bárbara cenotes or Mucuyché.
  5. A Caribbean day: Bacalar, Isla Mujeres or Tulum.

Booking in high season

Demand is high between Christmas and New Year. Book your day trips in advance and get written confirmation of what each includes. At Mary Tours you reserve with 50% and pay the rest on the day; there are no refunds, but you can try to change the date. From this page, groups of 4 to 20 get a per-person coupon on Bacalar, Isla Mujeres and Tulum.

What to pack in December

  • A light sweater for mornings and the van.
  • A swimsuit: cenotes are enjoyable all year.
  • A hat, biodegradable sunscreen and water: the midday sun is still strong.

Fun facts

  • In winter, flamingos gather between Ría Celestún and Los Petenes.
  • The Atlantic hurricane season is over by December.
  • The nortes can bring cloudy or windy days on the coast.
Yucatecan cochinita pibil with pickled red onion
(Illustrative image)

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Frequently asked questions

Is it cold in Yucatán in December?

Temperatures drop with the nortes, especially in the morning, but days stay warm.

Is it a good time for flamingos?

Yes, from November to February there are larger concentrations in Ría Celestún, according to CONANP.

Do I need to book ahead?

Yes, especially between Christmas and New Year.

Can I swim in cenotes in December?

Yes, cenotes are enjoyable all year.

Sources

  1. Weather glossary — SMN (Spanish) (2026-10-23)
  2. Ría Celestún Biosphere Reserve — CONANP (Spanish) (2026-10-23)
  3. Caribbean flamingo migration — CONANP (Spanish) (2026-10-23)
  4. Bookings and cancellation — Mary Tours (2026-10-24)

Image credits

  • Haakon S. Krohn · CC BY 4.0 · Wikimedia Commons

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