Whale Sharks in Baja California: The Season and the Sites
The season opens on a count, not a date
Most sites tell you 1 October to 30 April. That window is real. It is the period when swimming in the zone is legal — not the period when tours run.
Boats only go out once enough whale sharks are counted inside the zone over several days. Below that number, nothing runs. The 2025/26 season opened in mid-November.
It can also stop mid-season. If the count drops, tours are suspended until the sharks come back. February is the month it usually happens.
October rarely opens on time. Do not build a trip around the first week.
Tours have been suspended for weeks at a time. Usually in February.
A fixed number of licensed boats per slot. Slots run two to three hours.
December to March is the safest bet. The edges are what get cancelled.
Juvenile whale sharks feeding in La Paz Bay
Three places in Baja, three different trips
La Paz gets the attention. It is one of three options, and they run on different calendars.
La Paz peaks December–March. Bahía de los Ángeles peaks September–November.
Check available dates or reach out — we answer quickly.
Or email: office@bookdiveboat.com
Month by month, site by site
Pick the site first, then the month. The two aggregations barely overlap, so there is usually one running somewhere.
★ Peak · ✓ Present · — Not expected. La Paz dates still depend on the official count. Confirm with us before booking flights.
A morning in the zone
The permit fixes the format, so every licensed operator runs it the same way. Two to three hours. A few swimmers in the water at a time.
A guide runs the rules first. No touching. No cutting across the animal. Fixed distances, and a limit on how many people enter at once.
The captain spots a fin, then puts the boat ahead of the shark’s line. You slide in on the signal. No jumping, no splashing.
They move faster than they look. Each pass is a short sprint before the shark pulls away and the boat repositions. Fitter swimmers get more water time.
The plankton that draws the sharks also kills visibility. Often a few metres. Shoot wide, get close, and expect green water rather than blue.
Whale sharks, bull sharks, eagle rays
Send us your dates. We will tell you what is running and what is not.
The rest of the week
A whale shark tour is half a day, and there is no scuba in it. Nobody flies to Mexico for that alone. So what fills the other six days?
The simple version is a shore-based week in La Paz. Whale sharks one morning. Sea lions at Los Islotes on another. Espíritu Santo reef dives in between. Grey whales in the Pacific lagoons if you are there January to April. Dive site detail is in our La Paz diving guide, and the full species calendar sits in the Baja gentle giants guide.
Prefer to be on a boat? Two options, split by season. Sea of Cortez itineraries run May to November and reach the northern aggregation — the Nautilus Explorer works that route. From November the fleet moves offshore to Socorro. Whether that crossing is worth it from Europe is covered here.
One more thing for mixed groups. Whale sharks, grey whales and mobula schools all work without a certification card. A non-diving partner skips only the reef dives. That is not true of most destinations.
The rest of the week: reef dives, sea lions and the Sea of Cortez
Whale sharks are half a day. We will build the other six.
Check available dates or reach out — we answer quickly.
Or email: office@bookdiveboat.com
What kind of diving trip are you planning?
La Paz works from shore. The northern aggregation and Socorro need a boat.
3–4 dives/day · 7 nights · one price · access offshore sites
Browse liveaboards →Flexible schedule · own room · good if a non-diver is joining
Browse resorts →Plan your liveaboard trip
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We earn commission when you book. If the season looks likely to be closed on your dates, we will tell you before you book flights.
FAQ
Questions we get every week
When exactly is whale shark season in La Paz?
Can you scuba dive with whale sharks in La Paz?
How big are the whale sharks in La Paz Bay?
Do I need to be a strong swimmer?
Where else in Baja can I see whale sharks?
Is the encounter ethical?
Tell us your dates and we will tell you if the season is open
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