What to Wear in Puerto Vallarta in December: Packing Guide

How December Tends to Behave

December falls in Puerto Vallarta's dry season, and the customary pattern is warm daytime sun followed by an evening cooldown once the breeze arrives off the bay. Tour operator Vallarta Adventures describes daytime highs around 82–86°F (28–30°C) and evenings dipping to roughly 59–68°F (15–20°C), with minimal rainfall across the month. Treat those numbers as a historical seasonal tendency rather than a promise for your specific dates; weather can shift, and a cold front or a late-season shower changes the picture quickly.

The practical takeaway is not a specific temperature but a direction of travel: your body will likely run warm from mid-morning through late afternoon, then cool off once the sun drops and you are near the water. Packing for a single condition is the most common December mistake. Plan for two microclimates in one day and you will use almost everything you bring.

Because this is a coastal pattern rather than a fixed script, check a short-range forecast in the final days before departure. That check is more useful than any monthly average, and it tells you whether your evening layer should be a thin cardigan or something with more warmth.

Daytime Outfit Building Blocks

Begin with lightweight, breathable tops: cotton or linen t-shirts, tank tops, and loose button-downs that move air. Pair them with shorts, a flowy sundress, or quick-dry bottoms that can go from the beach to a casual lunch without a full change. Multiple swimsuits are worth the space because a damp suit may not fully dry overnight in coastal humidity.

The capsule approach works especially well here. A travel stylist writing about an eight-day Puerto Vallarta carry-on builds the whole bag around two pairs of linen pants, a handful of tops, two small dresses, and two pairs of sandals, which generates far more outfits than the piece count suggests. Focus on items that pair with more than one bottom and you will stop packing duplicates.

Add sun protection that survives wind and spray: a hat with a chin strap, sunglasses with a strap if you are on a boat, and sunscreen you are willing to reapply. A waterproof phone case and a quick-dry towel belong in the beach-day kit rather than the suitcase. These are not mandatory rules; they are the items that consistently earn their place on a warm coastal trip.

Fabric and Color Trade-Offs for Midday Heat

Linen, gauze, and technical blends beat dense cotton and heavy denim in midday sun. They dry faster after a swim, pack flatter in a carry-on, and feel cooler against the skin when humidity climbs. The trade-off is wrinkles, so if you care about a pressed look, choose a gauze or a linen blend rather than pure linen.

Light colors and loose cuts reflect heat and hide the creases that come from a day of walking. Dark, fitted pieces absorb more sun and show salt and sweat more readily, which is why one black dress or one navy set is usually enough for evening. Build the daytime rotation in white, beige, and soft stripes, then use darker tones for dinners.

Think about how each piece behaves after a beach afternoon. A thin cotton button-down thrown over a swimsuit doubles as a cover-up and a lunch layer, while a structured blouse does neither. If a piece cannot serve at least two moments in your day, it is probably not worth the space.

The Packable Evening Layer

One light layer is the difference between a comfortable dinner and cutting the evening short. A light cardigan, a thin sweater, a denim jacket, or a lightweight pashmina all work; choose based on how dressy your evenings will be. Vallarta Adventures lists light cardigans, thin sweaters, denim jackets, and lightweight pashminas as evening comfort items for December, which matches the pattern of warm days and breezier nights.

Pashminas and thin knits pack into a corner of a day bag, so they travel with you rather than staying in the hotel room. That matters on the Malecon, where the breeze off the water may feel cooler than the sheltered streets a few blocks inland. A denim jacket adds more warmth but weighs more and takes longer to dry, so it suits travelers who run cold or plan late nights.

If your December plans lean dressy for holiday dinners, swap the casual layer for a slightly more polished one and keep the rest of the wardrobe the same. You do not need a second wardrobe for evenings. One layer that works over both a sundress and a pair of linen pants covers almost every scenario.

Footwear for Cobblestones and Sand

Puerto Vallarta's streets, especially in the Zona Romantica, are cobblestone and uneven, so footwear is a real decision rather than an afterthought. Agave Villas advises travelers to bring comfortable walking shoes, noting that many of the city's attractions are best seen on foot. Sandals handle the beach and the pool; cushioned walking shoes handle the streets.

The most common footwear mistake is bringing only flat sandals with no support. Cobblestones punish thin soles over a full day, and a broken-in pair of walking shoes or supportive slides will carry you further than a new pair bought for the trip. If you want one shoe to do both jobs, choose a sandal with a cushioned footbed and a secure strap rather than a flip-flop.

Two pairs is usually the right number for a week: one sandal for beach and pool, one walking shoe for exploring. Pack them in the carry-on rather than checking them, and wear the bulkier pair on the plane. If your December trip includes a boat day, note that some operators specify closed-toe shoes, so check your operator's own requirements before you leave rather than guessing.

Beach, Boat, and Pool Days

A swimsuit, a cover-up or sarong, a quick-dry towel, and sun protection form the core of a beach or boat day. The cover-up does double duty as a lunch layer, and the quick-dry towel is far more useful than a heavy hotel towel that stays damp in your bag. A waterproof phone case is worth considering if you plan to spend a lot of time near the water, as Agave Villas suggests.

Boat days add wind and spray to the equation, so a light windbreaker or a packable layer earns its space even when the forecast looks warm. Secure your hat with a chin strap and keep a dry bag or a plastic bag for wet items. If you are heading out for whale watching, note that December marks the start of the season in Banderas Bay, and the same layering logic applies with added emphasis on wind protection.

Mixing Beach Time With Holiday Crowds

December brings holiday visitors, which means busier restaurants and more festive evenings than other months. You do not need a separate holiday wardrobe; instead, elevate one or two daytime pieces. A gauze button-down over a tank, or a simple dress with sandals, reads dressier without adding weight to the bag.

A small crossbody bag is more practical than a tote for crowded streets and packed restaurants. Keep it light: phone, a card, a little cash, and your evening layer. If your plans lean dressier, swap the daytime sandals for a slightly more polished pair rather than packing heels you will only wear once.

A Compact Week-Long Carry-On Example

For a seven-day trip, start with five tops: three tanks or t-shirts, one linen button-down, and one slightly dressier blouse. Add two bottoms, such as linen pants and a pair of shorts or a skirt, plus two dresses that can be dressed up or down. Include two swimsuits, one cover-up, and one evening layer, and you have a rotating wardrobe that fits in a carry-on.

For footwear, bring one sandal and one cushioned walking shoe, and wear the bulkier pair on the plane. Add a hat, sunglasses, sunscreen, a quick-dry towel, and a small crossbody bag, then use packing cubes or compression bags to keep everything accessible. This combination reuses the same pieces across beach afternoons, dinners, and walking days instead of duplicating them.

If your trip runs longer than a week, plan to do laundry rather than pack more. Travel-sized detergent and a sink wash keep the same capsule working for two weeks. If you are travelling into February, the pattern holds but the evening layer matters slightly more, so the guide to what to wear in Puerto Vallarta in February is a useful comparison.

What to Leave Behind

Leave the heavy jacket at home. A puffer or thick coat will sit untouched in your bag for the entire trip, and even a December evening in Puerto Vallarta rarely calls for more than a light layer. If you run cold, a denim jacket or a thin sweater is the upper limit of what is worth carrying.

Skip multiple pairs of heels. Cobblestone streets make them impractical for anything beyond a short walk, and a single pair of dressier sandals covers most evening scenarios. Also leave behind thick denim, which is hot, slow to dry, and heavy in a carry-on, and any duplicate bulky items that only work with one outfit.

Do not pack for a climate you are not visiting. Cold-weather clothing for a warm coastal December is dead weight, and it takes space that a second swimsuit or a cover-up would use better. Lay everything out, remove the items that only work for one scenario, and your bag will be lighter and more useful.

Before You Go: A Short-Range Weather Check

In the final days before departure, check a short-range forecast for Puerto Vallarta rather than relying on monthly averages. This tells you whether to expect a cooler-than-usual evening, which might push you toward a denim jacket instead of a pashmina, or a warmer stretch that makes the evening layer optional. Adjust one or two items, not your whole bag.

Confirm the details of any tours or activities you have booked directly with the operator, since equipment requirements and meeting instructions can change. If you are travelling in late December, holiday crowds can affect restaurant waits and beach space, so a flexible plan is more useful than a rigid one. The packing principles in this guide stay the same whether the week runs warm or breezy.

Plan Your December Layers

December in Puerto Vallarta rewards a light, transitional wardrobe rather than a specialized one. Build daytime outfits from breathable fabrics, carry one packable evening layer for the breeze, and choose footwear that can handle both sand and cobblestones. Keep the capsule small, reuse the same pieces, and leave the cold-weather gear at home.

For the broader citywide kit and month-by-month comparisons, start with the Puerto Vallarta packing list, then check the sister guides for January and February if your dates are flexible. The goal is a bag that works for beach afternoons, holiday dinners, and evening strolls without weighing you down.