Reef Explorers
Beach on the east coast of Cozumel

Cozumel

Diving in Mexico

22 documented dive sites, 6 of them for Open Water divers. Known for nurse sharks, turtles and eagle rays.

Best months
May–Aug
Water
25–28 °C
Levels
Open Water, Advanced, Experienced
Diving from
Dive resorts, Day boats
Nearest airport
CZM

Photo: Ricraider, CC BY-SA 3.0, via Wikimedia Commons

When to go

Pick a month: the diving season, from published sources, and the typical weather.

Pick a month

  • Best
  • Good
  • Possible
  • Closed
  • Not documented yet

Cozumel in October

Good season
Sea
30 °C
at the surface
Air
30 °C
25 °C at night
Rain
120 mm
average for the year
Wind
11 km/h
on average

The warmest water of the year.

Typical weather, not a forecast: averages for 2021–2025 (air, rain, wind) and 2023–2025 (sea), data from Open-Meteo (ERA5 / Copernicus, Météo-France). Covers an area of roughly 10 to 25 km around the destination.

Months follow PADI, except September, which is shown as good rather than best: it is the peak of hurricane season. PADI: no bad time, ~300 diveable days, May–Sep calm. Jan–Feb have the best visibility and peak eagle rays, but occasional norte winds.

Source: padi.com

For Advanced divers

usual dive down to 30 m11 sites

Marine life

When the big encounters happen, month by month.

SpeciesJanFebMarAprMayJunJulAugSepOctNovDec
Eagle raysSource: cozumel4you.com
Bull sharksSource: padi.com
  • Peak season
  • Seen

Eagle rays: Nov–Mar. Bull sharks: Nov–Mar

Also reported here, season not documented yet:

  • Nurse sharks
  • Turtles
  • Stingrays
  • Groupers
  • Moray eels
  • Manta rays
  • Reef sharks
  • Barracuda
  • Octopus
  • Seahorses
  • Splendid toadfish

Where is Cozumel?

View on OpenStreetMapLocation: Cozumel (Wikipedia)Map: Natural Earth
Nearest airport
CZM
How people dive here
Dive resorts, Day boats

Somewhere quieter?

Cozumel is one of the busiest dive hubs in the world. These destinations dive in a similar way and see far fewer divers: Grenada, Galápagos and Belize.

See all alternatives to Cozumel →

Cozumel: frequently asked questions

When is the best time to dive Cozumel?
The best months to dive Cozumel are May–Aug. Months follow PADI, except September, which is shown as good rather than best: it is the peak of hurricane season. PADI: no bad time, ~300 diveable days, May–Sep calm. Jan–Feb have the best visibility and peak eagle rays, but occasional norte winds.
Is Cozumel good for beginner divers?
Yes, partly: 6 of the 22 dive sites we document are suited to Open Water divers, including Paradise Reef, Colombia Shallows and Dalila Reef. The others need more experience or a higher certification.
What is the water temperature in Cozumel?
The water is usually between 25 °C and 28 °C over the year.
What marine life can you see in Cozumel?
Divers regularly see eagle rays (Nov–Mar), nurse sharks, turtles, stingrays, groupers and moray eels.
How do you dive Cozumel?
The nearest airport is CZM. Ways to dive here: dive resorts and day boats.

About this page

Seasons and marine life come from the sources below. Site levels and depths marked as estimated come from our original catalogue and are being checked one by one. Conditions change: always confirm with a local dive centre.

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Photo: Sarah Lee on Unsplash
Photo credits