Whale Shark Season in Cancun & Isla Mujeres — June to September

Whale shark season runs mid-June through mid-September every year. Peak month is August. Permits open in mid-May and the first guaranteed sightings start around June 15-20.

Most whale shark tours depart Hotel Zone marinas between 5:30am and 6:30am. The crossing takes about 90 minutes and the sea is calmest in the early morning. You're usually back at the marina by 2-3pm.

Yes — and most clients do. The standard route is: depart at dawn, whale shark swim 8-10am, motor back to Isla Mujeres for lunch and a snorkel/sandbar stop, return to Cancun by mid-afternoon.

The yacht charter includes captain, crew, snorkel gear, drinks and snacks. The whale shark transfer is an add-on that includes a permitted guide, life vest, biodegradable sunscreen and the SEMARNAT permit fee. We coordinate everything.

Children 5 and older can swim with whale sharks under guide supervision. Younger kids stay on the yacht with a parent. The whale sharks are filter feeders — completely harmless. The 90-minute crossing each way is the consideration; book on a flat-calm day for small kids.

Sightings are essentially guaranteed during peak season (July-August). Outside peak, our captain checks reports from boats that left earlier and only commits to the trip if sightings are confirmed. Refund or reschedule policy applies if the trip cannot be completed.