A group of neighbors comes to a door on a December evening in a plaza in the hills, carrying guitars, cuatros and maracas, and begins to sing until the lights inside the house turn on. That is a parranda, and it is the sound of the month all over Puerto Rico. Along the coasts the days are warm and bright, the island is dressed in lights, and December suits anyone who wants a beach morning and a Christmas night out in the same day.
What is the weather like in Puerto Rico in December?
December is warm and fairly dry on most of the island, with the north and northeast getting the most showers, the south and west staying mostly sunny, and the central mountains feeling noticeably cooler at night.
| Place | Region | Average high (°F) | Average low (°F) | Rain (in) | Rain days | Sea (°F) |
|---|---|---|---|---|---|---|
| San Juan | North coast | 84.2 | 73.3 | 4.85 | 10.6 | 82.5 |
| Fajardo | Northeast | 84.1 | 72.8 | 3.99 | 8.3 | 81.5 |
| Culebra | East islands | 79.6 | 77.3 | 2.10 | 4.9 | 81.9 |
| Ponce | South coast | 82.4 | 71.9 | 1.14 | 2.5 | 82.4 |
| Rincon | West coast | 82.3 | 74.8 | 0.83 | 1.5 | 82.8 |
The contrast is mostly about rain. San Juan sees showers on about ten days of the month, usually passing squalls pushed in by the trade winds, and Fajardo is not far behind at 3.99 inches. Ponce, with just over an inch, and Rincon, under an inch, are the places where a beach plan rarely gets rained out.
Temperatures vary less than you might expect. Culebra has the mildest afternoons, yet its nights stay the warmest of all, while Ponce has the coolest lows of the coastal spots. The sea is warm everywhere, in the low 80s, so swimming and snorkeling need no wetsuit.
Where to go in Puerto Rico in December
San Juan and the north coast
San Juan is the best place to see Christmas done Puerto Rican style. Over the blue cobblestone streets of Old San Juan, lights are strung above, plazas overflow with craft vendors and music, and local cooks serve up pasteles (plantain and meat parcels steamed in leaves), arroz con gandules, and lechon asado, or roast pork. Evenings are pleasant for walking the old city walls and the Paseo de la Princesa.
Showers pass through often, so plan museums, forts and long lunches for the wet moments and keep beach time for the breaks. Condado and Isla Verde beaches are busy on holiday weekends. Swells from the Atlantic can make the north coast rough in winter, so look for flags and signs before going into the water.
The west coast around Rincon
Rincon turns toward the swell in winter, and surfers start to arrive as the Atlantic swells build on the west-facing beaches. Even if you never stand on a board, watching the sets from the sand at sunset, with a cold drink from a beach shack, is a pleasure, and the dry weather makes it reliable.
From about now into the new year, humpback whales pass offshore, and the high lookouts near the lighthouse are good places to scan the water, though sightings are a chance, not a promise. Swimming gets more serious when the swell is up, so check conditions day by day and follow any flag or lifeguard.
Ponce and the south
In December, if you want guaranteed sun, head to Ponce, where you will find a charming plaza, a firehouse painted red and black, and tiled mansions in the historic center. Mornings are the time for walking, and the evening brings families to the plaza under the Christmas lights.
The south coast sits on the calmer Caribbean side, so beach days at nearby spots and the mangroves and cays off La Parguera tend to be easier than on the Atlantic shores. La Parguera is also one of the three bioluminescent bays, and a moonless night improves your chances of a glow.
The northeast and the islands
El Yunque is wetter than everywhere else even in a dry month, so go ready for sudden showers and slippery trails, with the reward of waterfalls running full and a green so deep it looks edited. Fajardo is the jumping-off point for sailing day trips and kayaking at Laguna Grande.
Culebra and Vieques, reached by public ferry from Ceiba, are the calmer choice for a beach week. Flamenco Beach on Culebra and the wild stretches of Vieques are less rainy than the main island, and Mosquito Bay glows best when the moon is gone.
The central mountains
In the coffee towns, the cool air gives December a real holiday feel. Mist sits on the ridges at dawn, nights call for a sweater, and roadside stands sell hot coffee and fritters. It is the right place to hear a parranda in a setting that has changed little for generations.
Allow time, because the roads wind and slow down after rain. Base yourself in a mountain town for a night or two between beach stays, and eat lunch at a roadside lechonera where the pork comes off the spit all afternoon.
What to do in Puerto Rico in December
Christmas, parrandas and the long holiday season
Puerto Rico’s Christmas is among the longest in the world, and by December it is in full swing. Houses glow with lights, radios play aguinaldos and plena, and families gather for Nochebuena on December 24, the big night, with roast pork, rice with pigeon peas and sweet coquito, the coconut drink.
The parranda, also called an asalto, is the signature tradition: friends show up unannounced after dark, sing, and are fed in return, and the party moves on to the next house. As a visitor you are most likely to catch a staged one at a plaza, restaurant or hotel, and that is a good way to hear the cuatro, a ten-string guitar that sounds like nowhere else.
Hatillo Mask Festival and other local dates
In Hatillo, a town in the northwest, December 28 brings the Mask Festival, when revelers wearing vivid outfits and horned masks parade in a reenactment of the biblical tale of Herod. It is loud, colorful and local, and it is a good reason to build a day around the north coast.
Markets and town fairs pop up around many plazas through the month, with crafts, pastries and live music. Fried snacks like alcapurrias and bacalaitos, sweet tembleque and shaved-ice piraguas keep the stands busy even when the air is warm.
Beaches, water and nature
Days are good for the water, with warm seas and a lot of sunshine on the south and west. From about now into the new year, humpback whales may be seen off the west coast, and snorkeling is often better on the calmer Caribbean side, where visibility depends on the day.
At night, the glowing bays are among the island’s strangest sights, and the three of them shine all year. Go on a night without a moon and treat the show as a chance, not a guarantee.
Is Puerto Rico busy in December?
Yes, particularly in the second half of the month, when mainland families fly in for Christmas and Puerto Ricans living abroad come home to visit relatives.
Flights and rooms in San Juan, Condado and Isla Verde fill up around the holiday weeks, and Old San Juan gets crowded on weekend nights with locals out to see the lights. Beaches near the capital are busy on days off, and the ferries to Culebra and Vieques draw heavy holiday traffic.
The early part of the month is easier, with open tables and a more relaxed feel while the decorations are already up. Quieter corners are the central mountains, the Ponce area and the smaller beach towns on the west coast, though they have their own holiday weekends when families return to their hometowns.
Locals travel too, so popular beaches such as those near Fajardo and Rincon see crowds on weekends. Weekdays are calmer, and early mornings are the best time at any of the big names.
What to pack for Puerto Rico in December
Packing is simple on the coast, where light clothing works all day, while a layer is welcome in the mountains and a rain jacket helps in the north and northeast.
- Light, breathable clothes and a swimsuit, plus something a bit nicer for dinners and holiday events.
- A light rain jacket for the quick showers around San Juan, Fajardo and El Yunque.
- A sweater or light fleece for evenings in the coffee towns.
- Sandals for the beach and sturdy shoes with grip for wet trails and cobblestones.
- Sunscreen, a hat and a snorkel mask if you like your own.
Good to know before you go
The official hurricane season wraps up on November 30, so December sits beyond it, yet the Atlantic may still stir late in the year, which means you should check the National Hurricane Center and local alerts as you plan. U.S. citizens flying in from the mainland need no passport and no visa for the trip, and the currency there is the dollar. Sargassum can reach east and south shores in some years, mostly in spring and summer.
Is December a good time to visit Puerto Rico?
December works beautifully for pairing toasty sands with celebratory towns, and if steady sun is what you’re after, your surest picks are the coasts on the west and south.
Compared with November, the island feels livelier, with the Christmas season now running at full volume and more visitors arriving. The weather is similar, though the dry season is more settled and showers are less frequent in many places. Compared with January, December has the build-up and the family gatherings, while January brings the street parties and the end of the holiday run.
If you want crowds and rates to stay easier, go in the first two weeks. If you want the full spirit of the season, with lights, parrandas and Nochebuena, the last ten days are the heart of it. The sea is warm in both halves.
What makes December special is the sound. Guitars, cuatros and voices drift out of plazas and open doors, and for a few weeks the whole island seems to be singing along.
Sources
- NOAA NCEI, monthly normals 1991-2020, station RQW00011641 (San Juan L M Marin International Airport), checked October 8, 2026
- Open-Meteo Marine API, average 2015-2024, checked October 8, 2026
- Open-Meteo / ECMWF ERA5, 1991-2020 normals calculated on the grid cell 18.0111N 66.6141W, checked October 8, 2026
- Open-Meteo / ECMWF ERA5, 1991-2020 normals calculated on the grid cell 18.3403N 67.2499W, checked October 8, 2026
- NOAA NCEI, monthly normals 1991-2020, station RQW00011630 (Roosevelt Roads (Ceiba)), checked October 8, 2026
- Open-Meteo / ECMWF ERA5, 1991-2020 normals calculated on the grid cell 18.3N 65.28W, checked October 8, 2026
- NOAA National Hurricane Center, Climatology (https://www.nhc.noaa.gov/climo/), checked October 8, 2026
To plan your stay
- Things to Do in Puerto Rico: Old San Juan, Beaches, Bioluminescent Bays and Island Food
- Where to Stay in Puerto Rico: San Juan, Rincon, Vieques and the Best Areas for Your Trip
- Getting Around Puerto Rico: Rental Cars, Tolls, Carros Publicos and Ferries to Culebra and Vieques
- Know Before You Go to Puerto Rico: ID, Money, Getting Around and Local Customs