Planning a trip to Puerto Vallarta in December? Weather plays a bigger role than you might think. It determines what you pack, which tours make sense, and how you'll spend your days. December brings beach weather, jungle adventure conditions, and the start of whale-watching season.
This guide breaks down exactly what to expect from Puerto Vallarta's weather in December. We'll cover temperatures, rain patterns, ocean conditions, and how they affect your plans. By the end, you'll know if December fits what you're looking for and how to make the most of it. You'll discover why this month marks the start of peak season and what makes it special for adventure seekers.
What's the Average Temperature in Puerto Vallarta During December?
Puerto Vallarta enjoys beautifully mild temperatures in December, with an average daytime high around 82°F (28°C). Daily highs gradually decline from about 84°F (29°C) at the beginning of the month to 81°F (27°C) near December 31.
The overall temperature range feels comfortable for both beach activities and jungle exploration. December averages about 6.5 hours of sunshine and 10.9 hours of daylight per day, giving you plenty of time for outdoor plans.
How Hot Does It Get in Puerto Vallarta in December?
December days may rarely approach 87°F (31°C), but the warmest hours typically occur around midday and feel more comfortable with ocean breezes. Average relative humidity is about 78%, so lightweight, breathable clothing remains useful.
December's warmth supports active adventures, whether you're zip-lining through jungle canopies or exploring coastal areas. Plan more strenuous activities in the morning and keep sun-protective clothing close for midday.
Is It Cold in Puerto Vallarta in December?
Cold weather isn't a concern during Puerto Vallarta's December days. Early mornings average around 64°F (18°C), with typical lows easing from about 66°F (19°C) early in the month to 63°F (17°C) near the end.
The coolest conditions feel pleasant rather than cold, which works well for morning adventures or early wildlife tours. December temperatures usually require no heavy clothing during the day, though a light layer helps before sunrise and after sunset.
What's the Temperature Like at Night in Puerto Vallarta in December?
Evenings in December are cool and refreshing, with typical temperatures around 63°F to 66°F (17°C to 19°C). Readings near 59°F (15°C) are possible but sit closer to the lower end of the historical range. Bring a light sweater or jacket for evening adventures, beachfront dinners, or late-night strolls along the Malecón.
The temperature drop feels pleasant rather than uncomfortable, and many visitors appreciate the cooler evenings after warm, active days exploring jungles and beaches.
Is the Water Warm Enough to Swim in December?
The Pacific waters off Puerto Vallarta typically average around 77°F to 79°F (25°C to 26°C) in December, warm enough for swimming, snorkeling, and diving with tropical fish. The water gradually cools from roughly 81°F (27°C) early in the month to 78°F (26°C) near the end. A shorty, or 3 mm wetsuit, is a comfortable choice for longer dives or travelers who chill easily.
The sea retains much of its warmth while the air temperatures stay comfortable, creating practical conditions for marine adventures. Whether you're floating over the reefs on a day like Luxury Snorkeling + Dolphins or watching wild pods glide by in Banderas Bay, the water temperature supports extended time in the bay.
Does It Rain in Puerto Vallarta in December?
December marks the beginning of Puerto Vallarta's dry season, so rain is minimal and infrequent. You'll have only about a 6% chance of rain on any given day, with most days staying completely dry.
When rain does occur, it typically comes as brief afternoon showers lasting 20-30 minutes rather than extended downpours that disrupt plans. These conditions make it practical to schedule outdoor adventures while keeping a little flexibility in your day.
How Much Rain Should You Expect in Puerto Vallarta in December?
Puerto Vallarta receives only about 0.8 to 1 inch (21- 25 mm) of total rainfall during the entire month of December, usually spread across about 2 days. When rain does fall, it's typically short, light showers that clear quickly, leaving sunny skies and fresh air behind.
These brief showers rarely impact tour schedules or outdoor activities. The minimal rainfall also supports clear snorkeling conditions and comfortable jungle adventures.
Is December Part of the Rainy Season in Puerto Vallarta?
December marks the beginning of Puerto Vallarta's dry season, which generally runs from December through May. The rainy season winds down before December, leaving consistently dry and sunny conditions through much of the month.
This seasonal transition means you can plan outdoor adventures with confidence. Extended periods of rain are unlikely to disrupt your jungle tours, whale watching expeditions, or beach activities.
Should You Worry About Storms in Puerto Vallarta in December?
December falls outside Puerto Vallarta's official Eastern Pacific hurricane season, which runs from May 15 through November 30. Tropical cyclone risk is therefore much lower in December, though weather can never be guaranteed completely.
The month's generally stable patterns and light ocean breezes support boat tours, whale watching, and water sports. Check the local forecast before marine activities, as we may adjust schedules when isolated wind or sea conditions require it.
Is It Windy in Puerto Vallarta in December?
December brings gentle, pleasant breezes averaging around 5.8-7 mph (9-11 km/h), which feel refreshing rather than disruptive. These light coastal winds help regulate temperature and provide comfortable conditions for sailing adventures.
The mild wind patterns support generally calm sea conditions for snorkeling, diving, and whale watching. The breeze can feel cooler on a moving boat, so bring a light layer for early departures and evening returns.
What Wildlife Shows Up in Puerto Vallarta in December?
December marks the beginning of humpback whale season in Banderas Bay, as these magnificent creatures arrive to breed and give birth in the warm waters. The official whale-watching season opens on December 8, while the sighting guarantee on selected tours begins December 20. You'll also encounter resident bottlenose dolphins year-round, with December's calm seas supporting comfortable viewing.
Late-season sea turtle hatchling releases may still occur on protected beaches, while the Sierra Madre mountains come alive with over 350 bird species, including tropical parrots and hummingbirds. December's mild weather creates practical conditions for wildlife photography and extended observation periods.
Does the Weather Affect Tours in Puerto Vallarta During December?
December's stable weather means tour cancellations are uncommon, and conditions support a broad range of adventure options. Mild temperatures and minimal rainfall suit jungle zip-lining, off-road rides like the Sayulita ATV Tour, and mountain adventures without long periods of afternoon rain.
Marine tours benefit from generally calm seas and good visibility, supporting whale watching, snorkeling, and diving expeditions. The reliable conditions allow full tour schedules, though holiday demand means popular departure times can fill quickly.
What Is Puerto Vallarta Weather Like at Christmas and New Year?
Christmas and New Year's Eve fall at the cooler end of December's gradual temperature trend. Expect daytime highs near 81°F (27°C), nighttime lows around 63°F (17°C), and Banderas Bay water near 78°F to 79°F (26°C). Rain remains uncommon, while sunset moves from about 6:25 p.m. near December 21 to 6:31 p.m. on December 31.
Demand rises sharply from December 20 through New Year, with holiday-week hotel occupancy often exceeding 95%. Book hotels, whale watching, marine trips, and limited-capacity adventures well in advance if your dates fall in this period.
What to Pack for December?
Weather determines everything you pack. December's conditions in Puerto Vallarta mean you'll want lightweight, breathable clothing for warm days and light layers for cooler evenings. Essentials include shorts, T-shirts, swimwear, sandals for daytime adventures and a light sweater or jacket for evening activities. Sun protection remains important, so use sun-protective clothing, a wide-brimmed hat, and UV sunglasses. A compact umbrella is a good backup for rare, brief showers.
December's maximum UV index is typically 7, which is considered high, even with an average of about 6.5 hours of sunshine per day. For a complete breakdown of exactly what to bring, check out our detailed guide: What to Pack for Puerto Vallarta in December.
What to Do in Puerto Vallarta in December?
December brings specific conditions for Puerto Vallarta adventures. The beginning of whale season supports humpback whale outings, while mild weather suits jungle zip-lining, ATV expeditions, and mountain village tours.
Ocean conditions support snorkeling, diving, and marine wildlife outings, while the comfortable temperatures suit hiking, horseback riding, and cultural activities. We've put together a full guide covering Things to Do in Puerto Vallarta in December.
Our Top Pick to Enjoy Puerto Vallarta in December: Majahuitas Beach Party
December's warm, generally dry weather sets the scene for Majahuitas Beach Party, a secluded cove south of the bay reachable only by boat, where the jungle spills right down to the sand. With daytime highs around 82°F and calm December seas, the ride feels scenic rather than choppy as the coastline opens up toward a beach tucked between the Sierra Madre and the Pacific.
Once ashore, you dance barefoot on golden sand as international DJs take over the shoreline, taste Mediterranean-Mexican plates, and sink into Balinese beds between sets. As the sun dips, hundreds of candles line the shore, and lasers light the jungle canopy, and December's pleasant 65°F evenings let the celebration stretch well past sunset.
Make December in Puerto Vallarta Yours
December gives you the freedom to shape each day around the pace and atmosphere you want, with enough practical detail to choose confidently and avoid last-minute uncertainty.
Ready to make it happen? Browse our full selection of Puerto Vallarta tours and find the right fit for your travel style. Popular December dates fill quickly, so planning ahead helps keep your preferred day available.
Frequently Asked Questions
Is December a good time to visit Puerto Vallarta?
Yes. December sits within the dry season, with average highs near 82°F, about a 6% daily rain chance, and Banderas Bay water around 77°F to 79°F. Those conditions support beach days, wildlife outings, and jungle activities without long weather delays.
Early December is generally less busy, while demand rises sharply from December 20 through New Year. Review our guide to the best time to visit Puerto Vallarta, then reserve holiday-week hotels and tours in advance.
Which December activity works for families with different comfort levels?
For families with different ages and comfort levels, a day at Las Caletas Beach & Adventure Park starts with a scenic boat ride to a hideaway reachable only by sea, then opens up into snorkeling in clear water, nature hikes, animal encounters, a buffet lunch with open bar, and separate adventure areas so adults and kids can each find their pace.
December's warm water, mild temperatures, and limited rain support a full day outdoors. Bring layers for the boat ride, swimwear, and sun protection, and book early if your trip falls during Christmas or New Year week.
How can active travelers balance ocean and jungle plans?
Active travelers can pair a marine day with the Sayulita ATV Tour, climbing rugged Sierra Madre trails in a Polaris RZR to 360-degree overlooks of Punta Mita and Banderas Bay, then dropping into Sayulita's cobblestone streets for free time among murals, boutiques, and cafés. December's mild temperatures and limited rain support comfortable trail time.
Schedule water activities earlier in your stay, then leave a flexible day for land plans. Closed-toe shoes, sun-protective clothing, and a light evening layer cover most conditions, while advance booking helps protect your preferred date during the holiday period.
