The Manuel Antonio whale watching tour runs from the Quepos marina, and December through March is the northern-hemisphere humpback season on Costa Rica’s Central Pacific. This page tells you which months the whales are actually here, what the four published prices are, what happens if nothing surfaces, and how the park’s closed Tuesdays affect a December or January trip. We are Wakoo Tours, based in Quepos, and we run these boats ourselves.
Two separate humpback populations pass through, so there are two seasons: December to March (whales from the northern Pacific, off the US west coast) and July to mid-November (whales from the Southern Hemisphere, off Antarctica and southern Chile). For the Central Pacific coast, where Manuel Antonio sits, the commonly cited observation windows are December–March and August–October (source: costa-rica-guide.com). They come to warm water to mate, give birth and nurse calves — not to feed — which is why mothers with calves move slowly and close to shore.
December is a real month of the northern season, but it is the start of it, not the peak — and we will not tell you otherwise. The northern-hemisphere animals arrive mainly from December through March, and February is the standout month of that window (Tico Times, 13 June 2026). In practice that means a December or January boat has a genuine chance of humpbacks, and a very high chance of dolphins, sea turtles and seabirds regardless. We never promise an animal. Anyone who guarantees you a whale sighting is selling you something they do not control.
This table is the published season by month, not a probability forecast — we do not invent percentages, and no honest operator can give you one.
| Month | Which population | Central Pacific (Manuel Antonio) |
|---|---|---|
| January | Northern Hemisphere | In season |
| February | Northern Hemisphere | In season — standout month |
| March | Northern Hemisphere | In season |
| April | Northern Hemisphere (tail) | Sightings possible, season ending |
| May | — | Off season |
| June | — | Off season |
| July | Southern Hemisphere | Season beginning |
| August | Southern Hemisphere | In season — peak |
| September | Southern Hemisphere | In season — peak |
| October | Southern Hemisphere | In season |
| November | Southern Hemisphere (to mid-month) | Season ending |
| December | Northern Hemisphere | In season — start of the northern window |
Sources: costa-rica-guide.com and The Tico Times. Costa Rica is one of the few countries on earth where both hemispheres’ humpbacks visit the same coastline, which is why the season here stretches across most of the year.
From the boat — whale watching is not possible from inside Manuel Antonio National Park. The park is a land reserve with trails and beaches; you may spot a distant blow from a lookout on a lucky day, but you cannot follow an animal from shore. The whales are seen on the water, on the catamaran that leaves from Marina Pez Vela in Quepos, an 8.1 km drive from the park entrance, about 17 minutes by road (measured door to gate with OSRM routing, not estimated). The exact departure point is Marina Pez Vela, Paseo del Mar, Quepos — GPS 9.4264177, -84.1687194 (open it in Google Maps). Put those coordinates into your phone rather than the words “Manuel Antonio”, which will send you to the park gate on the wrong side of Quepos. If you want both, the normal combination is the Manuel Antonio National Park boat tour on one day and a guided park walk on another — the park closes early and the boat runs in the afternoon light.
There are four published prices, and which one you want depends on whether you are sharing the boat. These are our real rates, per person, and they do not change with the season:
Park entrance is separate and is set by SINAC, not by us: $18.08 per adult ($16 plus 13% VAT). So a realistic total for one adult doing the shared park tour plus the Premium Shared catamaran on a different day is $30 + $18.08 + $65 = $113.08. We quote the total before you pay; there is no fuel surcharge and no separate “guide tip” line.
You still do the full tour, and no operator in Costa Rica — including us — refunds a boat because a wild animal did not appear. That is the honest answer. What we do instead: the catamaran route covers the coastline, the caves and the snorkel stop, so the trip stands on its own without a whale. Dolphins are far more frequently encountered than humpbacks on this stretch, and sea turtles and frigatebirds are near-daily. If you book a private boat and the captain finds nothing in the first hour, he keeps looking — that is the practical advantage of the $69 and $100 options over a shared departure that runs to a fixed clock.
A catamaran is the most stable small vessel you can be on, because the two hulls resist the roll that makes people sick on a single-hull boat. If you are prone to motion sickness, three things help and they are all free: take your tablet one hour before boarding rather than at the dock, stay on the open deck facing forward instead of sitting inside, and eat something light beforehand — an empty stomach makes it worse, not better. Morning water on the Central Pacific is usually calmer than afternoon water. Tell us when you book and we will put you on the morning departure.
Yes, and it is often the easier half of a Manuel Antonio trip for a family, because nobody has to walk. The boat has shade, a bathroom and railings, and children can move around instead of staying quiet on a trail. What to know honestly: humpbacks are a patience game and small children get bored between sightings, so the snorkel stop and the swim off the back of the boat are what they will actually remember. For toddlers, the private options ($69 Classic Private, $100 VIP Private) are worth the difference — you set the pace and can turn back early without asking twenty other passengers.
December and January are the drier months on the Central Pacific, and that is the main reason this is high season. Rain at this time of year usually arrives as a short afternoon shower rather than an all-day system. Boats run in rain; they do not run in genuinely unsafe sea conditions, and when the captain cancels for weather we move you to another departure or refund the boat — that decision is about swell and wind, never about clouds. Bring a light rain shell and a dry bag for your phone and you will be comfortable either way.
The park is closed every Tuesday, which is nine specific dates across these two months. Write them down before you buy a plane ticket:
The closure is a land-park rule and it does not stop the boat. A Tuesday is in fact a good day to be on the water, because everyone else’s park plans just collapsed and the marina is quieter. If your only free day in Manuel Antonio is a Tuesday, the catamaran is the answer, not a problem.
SINAC opens the online reservation window two months ahead, and in high season it matters: a December 26 morning slot is sold through the government system, not at the gate, and the popular time slots for the Christmas and New Year weeks go early. The practical consequence for a whale-season trip is that you should settle your dates roughly two months out, which for a January 2027 visit means acting in November 2026. We handle the park reservation for guests who book the guided tour with us — that is part of what the $30 covers — but the boat has no government window and can be booked any time there is space.
The catamaran includes the captain and crew, snorkel gear, the stop for swimming, fruit and drinks on board, and hotel pickup in the Manuel Antonio–Quepos area. It does not include the park entrance (that is a separate land ticket) or gratuities. Bring reef-safe sunscreen, a hat, a towel, sunglasses with a strap, and a dry bag. Leave the good camera behind unless it is waterproof — humpbacks surface without warning and the usable shot almost always comes from a phone you are already holding. There is no dress code and no minimum group size on the private boats.
The shared Premium departure runs about three and a half hours door to door, and the private boats run longer because you set the clock. There are normally two windows: a morning departure and an afternoon departure. For whales specifically, the morning is the better bet for two reasons that have nothing to do with the animals — the sea is flatter before the afternoon wind builds, and the light is behind you rather than in your eyes, which is the difference between seeing a blow at 400 metres and missing it. The afternoon departure is the one people book for the sunset on the way back in. If your priority is sightings, ask for the morning; if your priority is photographs of the coastline, take the afternoon.
Costa Rican regulations keep boats at a legal distance from marine mammals, and a responsible captain keeps more than the minimum when a calf is present. This is worth understanding before you book, because it sets a realistic expectation: a humpback encounter here means watching a blow, a back and a tail from a respectful distance, sometimes a breach if you are lucky — not a boat pressed up against an animal. Engines go to neutral when whales are near and the boat lets them choose the distance. Mothers with newborn calves are the reason the rules exist: the calves are only weeks old in December and January, they surface constantly to breathe, and a boat crowding them separates them from the mother. We would rather give you an honest sighting at distance than a photograph that cost the animal something.
Message us on WhatsApp with your dates and how many people, and we answer with the exact departure and the total price — no deposit link, no account to create. High season fills from the hotels first, so the earlier you write, the more choice of time slot you have. If you are still deciding on dates, our December 2026 tour booking page lists the open dates and the closed Tuesdays side by side.
Write to us on WhatsApp: +506 8514 1361 — we reply in English and Spanish, usually within the hour.