Punta Cana in December: Weather, Sea Temperature, Rain Days and How It Compares to November and January

PUNTA CANA · DECEMBER · 18.6° N

December 15 in Punta Cana runs to 11 hours and 4 minutes of daylight, over a sea averaging 82.1°F and under an average daytime high of 79.8°F. The month’s rainfall, 2.24 inches, falls on about six days out of thirty-one. Nights barely cool: the average low is 75.7°F, close enough to the high that the same shirt works at noon and at midnight.

What the month takes back is water heat and a quiet calendar. The sea ran 84.5°F in November and slips to 81.0°F by January, while the second half of December carries Christmas and the run-up to New Year’s Day. Rain days fall from 11.2 in November to 6.0 in December, which is the clearest gain on the whole calendar.

On this page

• Average highs, lows and rain days in December79.8°F, 75.7°F and 6.0 wet days
• Sea temperature for swimming in December82.1°F, as a mean of daily maxima
• How busy Punta Cana is at ChristmasThe holiday fortnight and the first three weeks
• Things to do in Punta Cana in DecemberBeach days, boat days, one inland morning
• A two-day plan inside 11 hours of daylightHour by hour, plus the wet-day swap
• December, November or January?How the three months compare
• Is December a good time to visit?The verdict, and who should shift

Every figure here comes from a model reanalysis of the grid cell at 18.58° N, 68.40° W, the eastern tip of the island, not from an airport thermometer. That cell takes the trade winds full on, and the sheltered south coast of the country runs calmer and drier than these numbers suggest. For the twelve-month view see the best time to visit Punta Cana, and the neighboring months have pages of their own: November and January.

Punta Cana weather in December: average highs, lows and rain days

The 1991-2020 normals published by Open-Meteo from the ECMWF ERA5 model put December’s average high at 79.8°F, the average low at 75.7°F and the month’s rainfall at 2.24 inches. A reanalysis is a modeled grid square, not a thermometer someone reads at an airport, and the two do not always agree. We were not able to read an official station normal for Punta Cana in time, so the modeled series is what you are getting, with its origin stated.

Six days in an average December record at least 0.10 inch of rain, which is roughly one day in five. Divide the 2.24-inch total across those six and each wet day carries about 0.37 inch on average, so the typical December rain is a passing event rather than a lost afternoon. Only 0.1 day reaches a full inch, and that figure is worth keeping in mind when a forecast app shows a cloud icon on every square of the week.

Between the average high and the average low sits 4.1°F, which is nothing at all in packing terms: the coolest hour of the night still averages 75.7°F. Leave the fleece at home and bring a light windbreaker instead. The grid cell behind these normals faces the open Atlantic at the island’s eastern tip, and wind on a boat deck at 8 a.m. does more to your comfort than any temperature here.

Daylight on December 15 runs 11 hours and 4 minutes, from a 6:57 a.m. sunrise to a 6:00 p.m. sunset in local time (the country sits at UTC-4 year round). That puts the end of the usable day earlier than most visitors expect from the tropics. Book the last swim for 5:30 p.m., and treat any excursion that returns at 4 p.m. as one that returns with two hours of light to spare, not five.

Can you swim in Punta Cana in December? Sea temperature and what it feels like

Sea surface off Punta Cana averages 82.1°F in December, taken from the Open-Meteo Marine API as the mean of daily maxima over 2015-2024. That last detail matters: a daily maximum is the warm end of each day’s cycle, so 82.1°F is a shade above what a 24-hour mean would show, and other tables that publish a straight average will read slightly cooler. Treat the number as the afternoon reading rather than the 7 a.m. one.

At 82.1°F the water sits 2.3°F above the month’s average air high, so the first step in feels warm rather than bracing, and it stays that way for an hour of snorkeling without neoprene. Children who complain about cold water in the Atlantic in September will not complain here. The practical limit in December is wind on the surface and the early sunset, not the temperature.

No wave height or wind speed series for December sits in our sources, so no figure goes in this paragraph. What the climate source does flag is the exposure: the cell used for these normals faces the trade winds at the island’s eastern tip, while the sheltered south coast of the country runs calmer and drier. Ask the operator which side of the coast a boat trip actually uses before you book it.

How busy is Punta Cana in December? Crowds, prices and the demand peak

December 25 falls inside this month and January 1 sits at its far edge, with North American school holidays covering roughly the last two weeks. That makes December two different months under one name: the first three weeks, and the holiday fortnight. We hold no occupancy series and no nightly-rate series for Punta Cana, so no month gets ranked on price here, and any page that ranks them is guessing on your behalf.

Booking follows that same split. If your dates land inside the holiday stretch, the flight is the piece to fix first and the room nights can follow. If they do not, early and mid-December carries an almost identical weather case, 6.0 wet days and a sea at 82.1°F, without the fixed-date competition. Our sources carry no booking-window figure for this destination, so we are not going to invent a number of weeks ahead.

On the tax question, plainly: no lodging tax, tourist card charge or airport fee figure for the Dominican Republic could be read in time, and none is quoted below. That is an absence in our sourcing, not a statement that no such charge exists. Confirm the amount with your hotel and the official government site before you close the budget.

Paying more for a changeable excursion date does more for a December week than an upgraded room does. Six wet days in thirty-one means a fixed, non-refundable boat departure has a real chance of meeting the one shower of the week, while a beach day simply moves. Spend the extra on flexibility first, on the view second.

Things to do in Punta Cana in December

December pairs warm water with a thinned rain calendar, and that combination is the month’s whole argument. The sea holds 82.1°F, within 2.4°F of November’s 84.5°F, while measurable rain drops from 11.2 days to 6.0. Full-day sea plans become a reasonable bet rather than a gamble. Daylight is the constraint instead: 11 hours and 4 minutes on the 15th, so a trip leaving at 7:30 a.m. and back at 5 p.m. has used nearly all of it.

For named targets, the Bávaro and Macao stretches take the beach days, a boat day runs out to Isla Saona, and Hoyo Azul at Cap Cana’s Scape Park makes the standard land morning. We quote no ticket price and no opening hour for any of them, because our sourcing for this month covers climate, sea and daylight and nothing else. Fees and schedules change, so check the operator directly when you book.

What December changes at those places is the air, not the water. An inland freshwater pool holds its temperature through the year, and no December reading for Hoyo Azul appears in our sources, so none is given. The ocean does move: 82.1°F now against 84.5°F four weeks earlier. Overhead, the average high shifts from 81.3°F to 79.8°F, a small shave, and the rain calendar does far more for a land morning than the thermometer.

The month’s free hours are all outdoors: shoreline walking, and swimming in that 82.1°F water. No free-admission date or free open day for December appears in our sources, so none is quoted. If a specific park or museum matters to your plan, confirm its December schedule with the operator, since holiday weeks often carry their own hours.

Punta Cana in December: a two-day itinerary

Sunrise on December 15 is at 6:57 a.m. local. Take the beach first, while the air is still well under its 79.8°F average high and the water reads 82.1°F. Line up a boat departure for mid-morning and eat late, putting the hottest hours under a roof where nothing is lost. Back on land around 4 p.m., two hours of light remain before the 6:00 p.m. sunset, enough for a second swim and a shower before dinner.

Day two goes inland in the morning, a cenote visit or a tee time, then returns to the sand from 3 p.m. If the sky turns, swap the order rather than the plan: six wet days out of thirty-one, averaging well under half an inch each, is a shower pattern that rewards patience. Keep the full-day boat trip for a clear morning and use the gray one for whatever you were going to do under cover anyway.

Punta Cana in December vs November and January

Across the three months the air temperatures differ by less than 2.5°F end to end, while the rainfall more than doubles from January to November. December’s average high, 79.8°F, sits 1.5°F under November’s and 0.9°F over January’s, and the lows follow the same narrow path. Rain is where the months separate: 4.34, 2.24 and 1.72 inches, spread across 11.2, 6.0 and 4.3 wet days. The sea cools steadily through the sequence, 84.5°F to 82.1°F to 81.0°F, all three as means of daily maxima from the marine series.

Shift four weeks earlier and you buy 2.4°F of extra sea warmth and 1.5°F of air, paid for with 5.2 more days of measurable rain. Shift four weeks later and January returns a drier month, 1.7 fewer wet days and half an inch less rain, at a cost of 1.1°F in the water and 0.9°F in the air, with the holiday dates behind you. Neither swap changes a single item in the suitcase.

Is December a good time to visit Punta Cana?

Yes for anyone whose week is built around water: 6.0 wet days out of 31, a sea at 82.1°F, and 11 hours of daylight that still fit a full-day boat trip with light to spare. No for travelers whose dates are locked to the Christmas fortnight on a fixed budget, since that is exactly the stretch of the year we cannot price for you, and December 25 is the date everyone else is also working around.

If the answer came out no, January is the month to take. Rainfall drops to 1.72 inches on 4.3 wet days, the sea still averages 81.0°F, and the holiday calendar has cleared. You give up 0.9°F of air and 1.1°F of water for it, which nobody has ever noticed while swimming.

Of these three months, December is the only one that puts water above 82°F alongside a rain calendar already cut to half of November’s.

The last word

Fix the flight around December 25 and keep the excursion date loose, and this month behaves. One number left to serve: an inch of rain or more shows up 0.1 day in an average December here, which works out to roughly one December in ten seeing a genuine soaking. Put the boat day early in the week, and take the last swim before 5:30 p.m., because the sun is gone by six.

Sources & data for this guide

• December normals: high 79.8°F, low 75.7°F, 2.24 in, 6.0 days at 0.10 in or more, 0.1 day at 1 in or more · Open-Meteo / ECMWF ERA5 reanalysis, 1991-2020, grid cell 18.5818° N, 68.4043° W · model output for the cell, not an airport station reading · checked Sep 15, 2026
• Scope caveat: the cell sits at the island’s eastern tip and takes the trade winds directly; the sheltered south coast runs calmer and drier · same ERA5 series · checked Sep 15, 2026
• Sea surface 82.1°F, mean of DAILY MAXIMA · Open-Meteo Marine API, 2015-2024 average · checked Sep 15, 2026
• Daylight 11h 04m on December 15, sunrise 10:57 UTC and sunset 22:00 UTC, converted to local time (UTC-4) · sunrise-sunset.org · checked Sep 15, 2026
• November and January figures in the comparison table: same ERA5 series and period for air and rain; sea from the Marine API, 2015-2024 · checked Sep 15, 2026
• Editorial admission: no lodging tax, occupancy series, nightly-rate series or venue ticket price could be read for Punta Cana in time for this page, and none is quoted. Place names are editorial; hours and fees change, so check operators when you book.