The best time to book Puerto Vallarta whale watching
Humpback whales spend the winter in Banderas Bay and leave before the summer heat arrives. The listings set the season from December to March, or from November to April on one Viator page. Our own lean is the middle stretch, from late December into March, and a morning boat where you can get one.
Why the whales come in winter
Humpback whales feed in cold northern water through the summer, then travel south to warm bays to mate and give birth. Banderas Bay (Bahía de Banderas in Spanish) is one of those winter grounds.
So the season follows the animals, not the tourist calendar. Once the calves are strong enough for the long swim north, the bay empties again. Every tour on this site is a winter product, and in summer there are no humpbacks to look for.
| Stretch of the year | Whales in the bay | What we think |
|---|---|---|
| November | Only on the Viator season for tour 2 | Early arrivals, thin numbers likely |
| Early to mid-December | Within both listed seasons | Building up, a fair gamble |
| Late December to March | Within both listed seasons | Our pick for the most whales |
| April | Only on the Viator season for tour 2 | The tail end, fewer animals |
| May to October | No humpbacks | Skip whale watching |
What the listings say about the season
The two partners do not agree to the week. GetYourGuide pages for these trips give December to March. The Viator page for Mike's Fishing & Tours catamaran from ~$99 stretches it from November to April.
Both can be right. The wider window counts the first whales to arrive and the last to leave, while the narrower one covers the weeks when trips run with more confidence. We read the gap as a warning about the edges rather than a contradiction.
The middle of winter, our lean
This is our opinion, not a promise from any operator. From roughly late December into March, the bay should hold the most whales, with mothers and calves among them. That is the stretch we would aim for if your dates are open.
Calves born in the bay spend their first weeks close to their mothers, often near the surface. Spotting a pair together is one of the quieter pleasures of a mid-winter trip, though nobody can schedule it.
More whales in the water means more chances during a few hours on the boat. It does not mean a sure sighting on any given morning, since whales move and the sea can turn. Our page on your odds of seeing a humpback explains what shapes a trip.
Mid-winter also matches the dry season in Puerto Vallarta. Daytime highs sit roughly at 27–29 °C (81–84 °F) and rain is rare. The bay is often calmer than in the stormy months of late summer.
A long morning on a steady boat
Mike's Fishing & Tours runs a 4-hour catamaran trip with breakfast, lunch and an open bar, from Puerto Mágico or a Nuevo Vallarta pier. Viator lists the longer November to April window for it.
The edges, and when to skip
Early December and late March sit inside both listed seasons, yet whale numbers are usually still building or already falling away. You can have a fine day then. You may also spend longer searching between sightings.
November and April are thinner again, and only one listing names them. If your trip falls there, a fast boat that covers more of the bay may suit you better. Los Veranos at ~$99 uses high-speed boats for that reason.
From May to October, skip whale watching altogether. Sunset cruises and snorkel boats run all year, but anything sold as a humpback trip in those months has no humpbacks to find.
Holiday weeks fill up first
The weeks around Christmas and New Year bring the biggest crowds to Puerto Vallarta, and small boats sell out early. Easter week is busy too, landing late in the season when whale numbers are already dropping.
If you travel then, book as soon as your flights are fixed. Booking early costs little, since the listings we checked let you cancel for free up to a day ahead, so an early booking costs little flexibility. Our price comparison for the five tours shows what each one charges.
Smaller groups feel the crowds most. The biologist-led Ecotours Vallarta trip from ~$120 runs a small research boat whose seats sell out sooner than places on a big catamaran.
Morning or afternoon on the water
As a general pattern, the bay tends to be calmer in the morning, and the breeze often picks up after midday. It is a tendency, not a rule, and some afternoons stay flat while some mornings are lumpy.
Calmer water makes blows and fins easier to spot and the ride easier on the stomach. If you get seasick, start with our seasickness guide. If you want the sunset instead, read the sunset cruise against a morning trip before you choose.
Fitting a trip into your stay
Book your whale trip early in your holiday rather than on the last day. If wind closes the port or the operator cancels, you then have room for a new date. One spare morning can save the outing.
Think about where you stay too. Boats leave from the marina, the cruise terminal or piers further north in Nuevo Vallarta, and the drive from the far end of the bay takes a while in traffic. Our page on where each boat leaves from lists every meeting point.
Pack the night before, since most of these trips start in the morning. Our list of what to bring on the boat covers sun, spray and the cash a couple of tours ask for on the day.