Culebra in December: Weather, Swimming, Beaches and a Two-Day Plan

In December, the little harbor of Dewey hums with a slow island rhythm: a drawbridge-like canal lined with moored boats, roosters walking the road, and somewhere a radio playing Christmas aguinaldos from a porch. Golf carts rattle toward the beaches in a softer light than the summer glare. For travelers who want turquoise water, a few quiet days and no resort scene, Culebra in December is an easy island to settle into.

The island sits just after the hurricane season ends, with warm days, mild nights and a sea that is still pleasant for a long swim.

Flamenco Beach on Culebra, with an old tank on the sand in the drier season · Illustration

What is the weather like in Culebra in December?

December is warm, breezy and mostly sunny, with only a few short showers, and it feels noticeably drier than the month before.

Month	Average high (°F)	Average low (°F)	Rain days	Sea (°F)
November	81.1	78.4	10.6	84.4
December	79.6	77.3	4.9	81.9
January	78.3	76.2	3.2	80.8

Early hours come in gentle and full of light, yet by noon the sunshine bears down hard enough that you will want a hat and some shade beneath the beach almond trees. The trade winds keep the afternoons from feeling heavy, and the humidity is easier to live with than in autumn. You can still eat dinner outdoors in a T-shirt most evenings, though a light layer may help when the breeze strengthens by the water.

Rain, when it comes, tends to arrive as a quick passing shower that blows through and leaves the sky clear again. Keep plans flexible if a shower passes through. Most travelers just wait it out under a porch with a coffee, and the beach is dry again within the hour.

The light in December is clean and low in the late afternoon, which makes the water look especially clear. Days are shorter than in summer, so plan beach time for the middle of the day and keep the golden hour for the harbor or a lookout.

Can you swim in Culebra in December?

Yes, the sea is still warm enough for a long, comfortable swim, only a little cooler than in the autumn months.

Culebra has both sheltered and exposed beaches, and conditions can change from one day and one beach to the next. On some exposed shores, north swells in winter can stir things up, so check the water before getting in. Whenever a flag, a sign, or a lifeguard on duty is present, follow their guidance.

Flamenco Beach suits families and anyone who likes wading and floating, thanks to its wide sweep of pale sand and clear, shallow water. A brief walk away, Carlos Rosario Beach features a coral reef near the shoreline, and that makes it an excellent place for snorkeling. On the west side at Tamarindo Beach, green sea turtles frequently graze above the seagrass, so bring a mask and keep a respectful distance.

At the eastern end, Zoni Beach stretches out long and peaceful, and it suits strolling and sitting more than it does building a swim around. Bring water shoes for rocky entries, sunscreen and a snorkel set if you have your own.

What to do in Culebra in December

December on Culebra is less about festivals and more about the island itself. The Christmas season still colors the month, with lights on porches in Dewey and music drifting from small bars, but the real draw is that the beaches are open and the weather is kind. Most days follow the same pleasant pattern: beach in the morning, a long lunch, a swim or a snorkel, and an evening on the harbor.

Culebra is also a place where you get around slowly, on a rented golf cart or a bike, stopping where something catches your eye. The island’s single town, peaceful harbor, and lack of big resorts are precisely what draw visitors here.

Flamenco Beach and the old tanks

Flamenco Beach lies inside the Culebra National Wildlife Refuge, and it is the picture most people carry home: a long curve of pale sand, clear shallow water and a pair of rusted military tanks left on the shore, now covered in graffiti. It is an easy ride from Dewey, and the road gives glimpses of the bay along the way.

Come December, arrive at first light for near-empty sand and gentle sun on the tanks. By late morning the shade under the trees fills up, and small kiosks near the parking area sell cold drinks and simple fried snacks. It suits almost everyone, from toddlers wading at the edge to couples who just want a good spot to read.

Pair it with a walk to Carlos Rosario Beach for snorkeling over the reef close to shore. Bring your own mask, water shoes and a bag you can leave in the shade.

Tamarindo Beach and the sea turtles

On the west side of the island, Tamarindo Beach is the snorkeler’s pick. Just past the shallows, green sea turtles frequently graze on seagrass and now and then float gently to the top for air. It is never a promise, but patient swimmers are often rewarded.

Head out early in the day, when the water is at its clearest and light makes it all the way down. Float quietly, keep your distance and never touch or chase a turtle. The beach itself is small and rocky in spots, so water shoes help, and there is little here besides the sea and the sky, so bring water and a snack.

Zoni Beach and the quiet east

On the island’s eastern tip, Zoni Beach is a long and peaceful expanse where Flamenco draws a much bigger crowd. It is the place for a long walk at the water’s edge, a picnic and a view toward the neighboring islands on a clear day.

It suits people who prefer silence to snorkeling. Arrive toward the end of the day, as the light goes golden and the breeze eases, and carry all your supplies, because almost nothing is close by.

In town, Dewey is the place for dinner. In town, look for Puerto Rican staples such as mofongo, rice and beans, fried plantains and fresh fish. In December, a few open-air spots add Christmas music and a relaxed holiday mood, and you can watch the boats rock gently at their moorings as the sun goes down.

A boat excursion to Culebrita is one of the island’s signature outings. The Virgen del Carmen procession of boats happens in July, not now, but the harbor’s fishing culture is present year-round.

A two-day itinerary for Culebra in December

You start Day 1 by getting to Dewey early, whether that means taking the ferry from Ceiba or a quick flight. Pick up a golf cart or a bike, drop your bags and have a simple breakfast near the canal. Make your way to Flamenco Beach early, take a swim, visit the old tanks, and then walk to Carlos Rosario to snorkel above the reef.

Lunch is easy at a beach kiosk or back in town. In the afternoon, rest in the shade, then catch the late light with a quiet stroll along the harbor. With about eleven hours of daylight, the sun goes down in the early evening, so dinner in Dewey, with fish and a cold drink, comes naturally.

Day 2 begins on the west side, so go to Tamarindo Beach early, when the water is clearest, and snorkel the seagrass for turtles. Return to town for a late lunch, and if the weather turns, a passing shower is best spent on a covered porch with coffee, or browsing small shops and galleries in Dewey.

As the day goes on, drive east to Zoni Beach, where a long stroll and quiet time by the water await you. Stay until the light turns golden, then head back for a last dinner by the canal, with the boats rocking softly in the dark.

Is Culebra busy in December?

Culebra is moderately busy in December, with the holiday weeks bringing the most visitors and the early part of the month feeling noticeably calmer.

The island is small, with no large resorts, so a modest increase in visitors shows quickly. Flamenco Beach gets the crowds, especially on weekends and around Christmas, while Zoni and Tamarindo stay quieter. When the holiday weeks come, the first to disappear are restaurant tables, rental golf carts and rooms.

Public ferries run from Ceiba, and a short flight is another option.

On ordinary weekdays, the island is easy and unhurried. You can get a table at dinner without much fuss, and most beaches have room to spread out, especially if you start early.

What to pack for Culebra in December

Because the island keeps things casual and the days stay warm, travel with a light bag, and let the beach come to mind before anything else.

Sunscreen and a hat, because the midday sun is strong even in winter.
Bring a mask and snorkel, and at Tamarindo you can spot turtles along with the reef at Carlos Rosario.
Water shoes, for rocky entries and uneven shores.
A light rain jacket, for the quick passing showers.
A light layer, for breezy evenings by the harbor.
A reusable water bottle, since beaches like Zoni have little nearby.

Good to know before you go

December falls just after the Atlantic hurricane season, which runs from June 1 to November 30, so the month sits outside the official season. Still, if a late-year storm were to form, watch the National Hurricane Center and heed what local officials advise. Public ferries run from Ceiba to the island, and a short flight is another option, while bikes and golf carts are how you get around once you arrive, so reserve all of those early for the holiday weeks.

Culebra in December vs November and January

Going four weeks earlier, in November, means a warmer sea and more frequent rain, with showers more often and the island quieter before the holiday rush. It is a good choice if you prefer empty beaches and do not mind a few gray spells. The Christmas mood has not yet arrived.

Moving four weeks later, to January, brings a slightly cooler sea and the driest weather of the three months. The holiday crowds thin out after the first days of the year, so the island feels calmer again, though the evenings are a touch cooler and winter swells can liven up exposed shores.

Choose December if you want the balance: warm water, mostly dry days and a festive feel in Dewey. Shift to November for quiet and a bathtub-warm sea, or to January for the driest skies and a calmer rhythm after the holidays.

Is December a good time to visit Culebra?

December works really well for people who love the beach, for snorkelers, and for anyone after a laid-back island week that stays mostly dry.

It suits couples, families with children who like to splash in shallow water, and travelers who enjoy simple pleasures: a walk on an empty beach, a plate of fresh fish, a drink by the canal. For those seeking nightlife, big festivals or organized entertainment, it is not the best fit, because Culebra remains quiet by design.

On arrival, settle your golf cart and head straight to the water, before the afternoon crowd, then keep the evening for Dewey. What makes December special here is the mix of warm sea, soft light and the faint sound of Christmas music over a harbor where the boats barely move.

Sources

Open-Meteo / ECMWF ERA5, 1991-2020 normals calculated on the grid cell 18.3N 65.28W, checked October 8, 2026
Open-Meteo Marine API, average 2015-2024, checked October 8, 2026
sunrise-sunset.org, sunrise and sunset calculated for the 15th of the month, checked October 8, 2026
NOAA National Hurricane Center, Climatology (https://www.nhc.noaa.gov/climo/), checked October 8, 2026