Puerto Vallarta is warm all year, but the character of the town changes with the seasons. The big divide is between the dry season, from roughly November to May, and the rainy season, from roughly June to October. Within that frame, whale season, holidays and school breaks shape the crowds and the prices. Choosing when to go is mostly a question of whether you value dependable sunshine, wildlife, low prices or green landscapes.
December to March: peak season
This is the most popular time, and for good reason. Days are sunny and dry with comfortable temperatures, evenings can be pleasantly cool and humidity is lower than in summer. It is also humpback whale season, when whales migrate to the bay to breed and calve, and boat trips with a hydrophone are the highlight of the year. January and February are generally the peak months for sightings. The trade-off is crowds and higher prices, so book hotels and popular tours well ahead, and expect busy beaches and restaurants, especially around Christmas, New Year and the school holidays. The Botanical Garden and other attractions adjust their hours for the season, so check before you go.
April and May: hot and quiet
As the whales leave and the winter crowds thin, the weather gets hotter and drier. These months are good for beach days and snorkeling, with warm water and good visibility, and prices often ease. The afternoon heat can be strong, so plan active outings for the morning and rest in the shade or by a pool at midday. Holy Week brings Mexican families to the beaches and can be very busy, so book early if you plan to be there then.
June to October: green and humid
The rainy season turns the Sierra Madre vivid green and fills the rivers and waterfalls, which is a good time for hiking and for the Mismaloya waterfalls, though routes can change after heavy rain. Mornings are often sunny, with storms building in the afternoon and evening. It is hot and humid, with lower prices and far fewer visitors, and sea conditions can be rougher, so boat trips are more likely to be changed or canceled. Hurricane season runs through this period and into November, so buy flexible bookings and travel insurance, and follow local weather forecasts. The upside is a quieter town, good value and lush scenery.
November: the shoulder
The rains fade, the hills are still green and the heat eases, which makes November one of the most pleasant months to visit. Crowds build as winter approaches, and whale season begins in earnest from December, with the first arrivals possible earlier. Food and music events and cultural celebrations around the Day of the Dead add color to the town at the start of the month. If you want good weather before the peak prices, this is a favorite among regular visitors.
Festivals and special dates
In December, pilgrims gather around the Church of Our Lady of Guadalupe for the anniversary of the Virgin of Guadalupe, with processions, music and street stalls that fill the Old Town. Christmas and New Year are festive and busy, with fireworks and family celebrations. These events are memorable, but access to some streets and restaurants can be affected, so plan extra time.
Choosing for your trip
For whales, sunshine and a lively atmosphere, go from December to March and book early. For beach days with fewer people, aim for late April or May, or the shoulder of November. For greenery, hiking and low prices, consider June to October, but go with flexible plans and an appetite for afternoon storms. Families tied to school holidays will likely face peak prices in the winter and summer, so book sooner rather than later.
Packing and planning
In winter, bring light clothing, a light layer for evenings and early boat trips, and sun protection. In summer, bring quick-dry clothes, a rain jacket and insect repellent. Reef-safe sunscreen, a hat and a refillable water bottle help in every season. Whatever month you choose, plan the biggest outdoor excursion for the morning, keep a flexible day in your schedule for weather, and book boat trips with free cancellation where possible. If your dates are fixed, the season matters less than the plan: a good hat, an early start and a bit of flexibility make any month enjoyable in Puerto Vallarta.

