Mexico
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Where to dive in Mexico
Isla Mujeres
Caribbean Sea
TEMPERATURE24°C - 31°CVISIBILITY10 - 30 m
Baja California Sur
Pacific Ocean
TEMPERATURE18°C - 29°CVISIBILITY5 - 30 m
Cozumel
Caribbean Sea
TEMPERATURE26°C - 30°CVISIBILITY24 - 45 m
Guadalupe Island
Pacific Ocean
TEMPERATURE16°C - 22°CVISIBILITY20 - 40 m
Holbox
Gulf of Mexico
TEMPERATURE24°C - 30°CVISIBILITY5 - 20 m
Playa del Carmen
Caribbean Sea
TEMPERATURE25°C - 29°CVISIBILITY15 - 30 m
Revillagigedo Islands
Pacific Ocean
TEMPERATURE21°C - 30°CVISIBILITY5 - 30 m
Socorro Islands
Pacific Ocean
TEMPERATURE21°C - 30°CVISIBILITY10 - 30 m
Top species 32
- Unlikely
- Likely
- Very likely
Nocturnal Frequent sightingsBlue Shark
Prionace glauca
The Blue Shark (Prionace glauca) is a highly migratory, oceanic requiem shark distinguished by its slender body, deep blue dorsal coloration, and long, narrow pectoral fins. It primarily feeds on cephalopods and pelagic fish but is an opportunistic predator and scavenger. This species undertakes extensive migrations and often segregates by age and sex.
BEST SEASON
Cathemeral Frequent sightingsBull Shark
Carcharhinus leucas
The bull shark is a robust coastal shark known for its ability to tolerate freshwater, frequently entering rivers and estuaries. It is an opportunistic predator feeding on fish, rays, crustaceans, and other marine animals in tropical and subtropical regions.
BEST SEASON
Variable Frequent sightingsCalifornia Sea Lion
Zalophus californianus
The California sea lion is an intelligent, playful, and vocal pinniped known for its distinctive barking sound. This sexually dimorphic species features males that are significantly larger with a thick neck and a prominent sagittal crest, while females are typically lighter in color. They are opportunistic feeders found along the coastlines of western North America, preying mainly on fish and cephalopods.
BEST SEASON
Nocturnal Frequent sightingsCaribbean Reef Shark
Carcharhinus perezi
The Caribbean Reef Shark is a robust, streamlined requiem shark commonly found in tropical waters of the western Atlantic Ocean, particularly around coral reefs. It is an apex predator, primarily feeding on bony fishes, cephalopods, and crustaceans. Known for its unique ability to rest motionless on the seabed or inside caves, this species typically reaches lengths of 2-2.5 meters and can weigh up to 70 kg.
BEST SEASON
Cathemeral Frequent sightingsCommon Bottlenose Dolphin
Tursiops truncatus
The Common Bottlenose Dolphin is a robust dolphin characterized by its short, stocky snout and grey coloration with a paler underbelly. Highly intelligent and social, these dolphins form complex fission-fusion societies. They are found globally in temperate and tropical marine waters, and are known for their active swimming, leaps, and use of echolocation for hunting.
BEST SEASON
Diurnal Frequent sightingsCommon Thresher Shark
Alopias vulpinus
The common thresher shark is a large pelagic shark recognized by its exceptionally long upper tail lobe, which it uses to stun schooling fish. It is an active predator found in temperate and tropical waters, often inhabiting offshore environments and occasionally approaching coastal areas.
BEST SEASON
Diurnal Frequent sightingsGalapagos Shark
Carcharhinus galapagensis
The Galapagos Shark is a large requiem shark found in tropical waters. It is recognizable by its streamlined body and distinctive fins. This shark is known for forming schools near sea mounts and is often seen in coastal and reef areas.
BEST SEASON
Variable Frequent sightingsGiant Oceanic Manta Ray
Mobula birostris
The Giant Oceanic Manta Ray is the world's largest ray, with a disc width that can reach up to 9 meters. It is a circumglobal species found in tropical to temperate pelagic waters, often near coastlines, reefs, and in the open ocean, diving to depths of 1,000 meters. These filter feeders primarily consume zooplankton, including mesopelagic sources, and can also eat small fish. While generally solitary, they aggregate at feeding grounds and cleaning stations. The species is currently listed as Endangered due to overfishing and low reproductive rates.
BEST SEASON
Diurnal Frequent sightingsGreat Barracuda
Sphyraena barracuda
The Great Barracuda is a large predatory fish known for its fearsome appearance and speed. It has an elongated body, pointed head, and large teeth, making it a proficient hunter in coastal and open waters.
BEST SEASON
Crepuscular Great Hammerhead Shark
Sphyrna mokarran
The great hammerhead is the largest hammerhead species, recognizable by its wide, flat head and tall, curved dorsal fin. As a migratory apex predator, it uses its unique head for enhanced sensing and pinning down prey.
BEST SEASON
Cathemeral Frequent sightingsGreat White Shark
Carcharodon carcharias
The Great White Shark is the largest known predatory fish, characterized by its torpedo-shaped body, conical snout, and large, serrated triangular teeth. It is an apex predator found in temperate and tropical waters worldwide, playing a crucial role in marine ecosystems. This species exhibits regional endothermy, allowing it to maintain a body temperature higher than the surrounding water, which aids in its active predatory lifestyle.
BEST SEASON
Diurnal Frequent sightingsGreen Sea Turtle
Chelonia mydas
The green sea turtle is a large marine reptile distinguished by its heart-shaped carapace and a single pair of prefrontal scales.
BEST SEASON
Diurnal Frequent sightingsHawksbill Sea Turtle
Eretmochelys imbricata
The Hawksbill Sea Turtle is a medium-sized marine turtle recognizable by its distinctive hawk-like beak and overlapping scutes, which create a serrated edge on its carapace. Primarily found in tropical coral reefs, it plays a crucial role in these ecosystems by feeding mainly on sponges, which are toxic to most other animals. This species is critically endangered due to historical exploitation for its beautiful shell and ongoing threats like habitat loss and bycatch.
BEST SEASON
Variable Frequent sightingsHumpback Whale
Megaptera novaeangliae
The Humpback Whale (Megaptera novaeangliae) is a large baleen whale known for its distinctive body shape, long pectoral fins (up to one-third of its body length), and knobbly head. These migratory cetaceans are filter feeders, consuming krill and small schooling fish. They are also famous for their acrobatic surface behaviors like breaching and complex vocalizations, particularly the male's elaborate songs.
BEST SEASON
Cathemeral Frequent sightingsKiller Whale
Orcinus orca
The Killer Whale, also known as Orca, is the largest member of the dolphin family, recognizable by its distinct black and white coloration. They are apex predators with a highly diverse diet, adapting their hunting strategies to local prey availability, and are known for their complex social structures, living in stable, matrilineal family groups called pods. These intelligent marine mammals are found in all oceans, from polar regions to tropical seas, and are active both day and night.
BEST SEASON
Variable Frequent sightingsLoggerhead Sea Turtle
Caretta caretta
The Loggerhead Sea Turtle is a large, hard-shelled marine reptile known for its massive head and powerful jaws, which it uses to crush hard-shelled prey. This highly migratory species inhabits temperate and tropical waters worldwide, utilizing coastal areas, open oceans, and coral reefs. While generally solitary, females gather on beaches at night for nesting.
BEST SEASON
Nocturnal Frequent sightingsNurse Shark
Ginglymostoma cirratum
The Nurse Shark (Ginglymostoma cirratum) is a slow-moving, bottom-dwelling shark typically found in tropical and subtropical coastal waters, including coral reefs and mangrove channels. It is a nocturnal carnivore, primarily feeding on crustaceans, mollusks, and small fish using a powerful suction-feeding mechanism. During the day, they are often observed resting in large aggregations, sometimes piled together in caves or under ledges.
BEST SEASON
Diurnal Ocean Sunfish
Mola mola
The Ocean Sunfish is one of the heaviest known bony fish, notable for its round, flat body. It often basks on its side at the surface of the ocean and is a diurnal predator feeding primarily on jellyfish.
BEST SEASON
Cathemeral Frequent sightingsOceanic Whitetip Shark
Carcharhinus longimanus
The oceanic whitetip shark is a large pelagic shark recognized by its broad, rounded fins tipped in white. It inhabits tropical and subtropical open oceans and is an opportunistic predator, feeding mainly on fish, squid, and carrion.
BEST SEASON
Diurnal Pelagic Thresher Shark
Alopias pelagicus
The Pelagic Thresher Shark is recognizable by its extremely long caudal fin, which can be as long as its body and is used to stun prey. It is an active, fast-swimming carnivore found in tropical and subtropical open ocean waters, often near the surface but capable of diving to considerable depths. This species exhibits ovoviviparity and is unfortunately classified as Endangered due to overfishing and slow reproductive rates.
BEST SEASON
Diurnal Frequent sightingsQueen Angelfish
Holacanthus ciliaris
The Queen Angelfish (Holacanthus ciliaris) is a striking marine fish known for its vibrant blue and yellow coloration, accentuated by a distinctive dark-ringed 'crown' spot on its forehead. Primarily found in coral reefs of the Western Atlantic, this species feeds on sponges, algae, and various marine invertebrates. Adults are often observed alone or in pairs, though they form harems during breeding periods.
BEST SEASON
Cathemeral Frequent sightingsScalloped Hammerhead Shark
Sphyrna lewini
The Scalloped Hammerhead Shark is a large, migratory shark easily recognized by the central indentation on its hammer-shaped head. These sharks are found globally in warm temperate and tropical coastal and oceanic waters, often forming large schools around seamounts and islands. They are primarily nocturnal foragers, feeding on a diverse diet of bony fishes, cephalopods, crustaceans, and smaller sharks and rays.
BEST SEASON
Cathemeral Frequent sightingsSilky Shark
Carcharhinus falciformis
The Silky Shark (Carcharhinus falciformis) is a large, slender requiem shark named for the smooth texture of its skin, attributed to densely packed dermal denticles. It is a highly migratory species found in warm tropical and subtropical waters worldwide, often associating with schools of tuna and oceanic fronts. These opportunistic carnivores primarily feed on bony fishes and cephalopods, exhibiting agile and fast hunting behaviors.
BEST SEASON
Variable Frequent sightingsSilvertip Shark
Carcharhinus albimarginatus
The Silvertip Shark is a large, streamlined requiem shark identifiable by the prominent white tips and trailing margins on all its fins. It is an aggressive apex predator, often dominating other sharks during feeding, and can be found in various tropical Indo-Pacific marine habitats from the surface to considerable depths. While often solitary or in pairs, it can also form small groups or mixed-species aggregations and exhibits variable activity patterns throughout the day and night.
BEST SEASON
Crepuscular Frequent sightingsSouthern Stingray
Hypanus americanus
The Southern Stingray is a graceful, diamond-shaped ray known for its broad, flat body and pointed pectoral fins. It can be found over sandy or muddy seabeds in warm, shallow waters of the western Atlantic Ocean.
BEST SEASON
Cathemeral Sperm Whale
Physeter macrocephalus
The Sperm Whale is the largest toothed whale, easily recognized by its enormous, block-shaped head which can be up to one-third of its body length and houses the spermaceti organ. These deep-diving carnivores primarily hunt squid, including giant and colossal species, along with fish, sharks, and octopuses, often descending to extreme depths of over 3,000 meters. They exhibit a complex social structure where females and juveniles form stable, matrilineal groups, while mature males often lead solitary lives or form bachelor pods, venturing to higher latitudes outside of breeding seasons.
BEST SEASON
Nocturnal Frequent sightingsSpinner Dolphin
Stenella longirostris
The Spinner Dolphin (Stenella longirostris) is a small, slender dolphin renowned for its acrobatic leaps and spins out of the water. Found in tropical and subtropical oceans worldwide, they typically feed on small mesopelagic fish, squid, and shrimp at night, often diving to considerable depths. During the day, they rest and socialize in large, often fluid, schools, sometimes in shallow coastal waters.
BEST SEASON
Diurnal Frequent sightingsSpotted Eagle Ray
Aetobatus narinari
The Spotted Eagle Ray is known for its distinctive spots and elongated snout, which resembles a bird-like beak. It thrives in tropical waters, especially around coral reefs and coastal zones. The ray is a powerful swimmer and can often be seen leaping out of the water.
BEST SEASON
Variable Frequent sightingsTiger Shark
Galeocerdo cuvier
The tiger shark is a large apex predator recognized by the dark vertical stripes along its body, especially visible in juveniles. It inhabits tropical and subtropical waters and has a highly varied diet, feeding on fish, rays, turtles, seabirds, and other marine animals.
BEST SEASON
Diurnal Frequent sightingsWhale Shark
Rhincodon typus
The whale shark is the largest fish in the world and a gentle filter feeder.
BEST SEASON
Nocturnal Frequent sightingsWhitetip Reef Shark
Triaenodon obesus
The Whitetip Reef Shark is a slender, medium-sized shark easily identified by the distinctive white tips on its dorsal and upper caudal fins. Primarily nocturnal, it spends its days resting in caves and under ledges on coral reefs and hunts at night for bony fishes, crustaceans, and cephalopods. These sharks are generally social, often found in groups during the day, but can hunt individually or cooperatively.
BEST SEASON
Diurnal Frequent sightingsYellowfin Tuna
Thunnus albacares
The Yellowfin Tuna is one of the fastest and most powerful pelagic fish in the ocean. Recognizable by its sleek body and distinctive yellow fins, it inhabits tropical and subtropical waters worldwide. It often forms large schools and is frequently encountered around reefs, drop-offs and offshore seamounts, where it hunts smaller fish and squid with remarkable speed.
BEST SEASON
More marine life 50
Almaco JackSeriola rivoliana
Atlantic LizardfishSynodus saurus
Atlantic Spotted DolphinStenella frontalis
BarracudaSphyraena spp.
Bigeye Thresher SharkAlopias superciliosus
Bigeye TrevallyCaranx sexfasciatus
Black DurgonMelichthys niger
Blacktip SharkCarcharhinus limbatus
Blue WhaleBalaenoptera musculus
Blue-barred ParrotfishScarus ghobban
Broadnose Sevengill SharkNotorynchus cepedianus
Bryde's WhaleBalaenoptera edeni
Butterfly RayGymnura spp.
Caribbean Reef OctopusOctopus briareus
Caribbean Spiny LobsterPanulirus argus
Common Minke WhaleBalaenoptera acutorostrata
Dusky SharkCarcharhinus obscurus
Eagle RayAetobatus spp.
Fin WhaleBalaenoptera physalus
Fur SealsArctocephalinae
Garden EelHeterocongrinae
GlasseyeHeteropriacanthus cruentatus
Gray WhaleEschrichtius robustus
Greater AmberjackSeriola dumerili
Green Moray EelGymnothorax funebris
Lemon SharkNegaprion brevirostris
Leopard SharkTriakis semifasciata
LionfishPterois spp.
Midnight ParrotfishScarus coelestinus
Moorish IdolZanclus cornutus
Olive Ridley Sea TurtleLepidochelys olivacea
Pacific SeahorseHippocampus ingens
Princess ParrotfishScarus taeniopterus
Queen ParrotfishScarus vetula
Rainbow RunnerElagatis bipinnulata
Sargassum TriggerfishXanthichthys ringens
Scarlet-Striped Cleaner ShrimpLysmata grabhami
Sea LionOtariinae
SealPhocidae
Sergeant MajorAbudefduf saxatilis
Sicklefin Devil RayMobula tarapacana
Smooth Butterfly RayGymnura micrura
Smooth Hammerhead SharkSphyrna zygaena
Spinetail Devil RayMobula mobular
Spiny Butterfly RayGymnura altavela
Spot-fin PorcupinefishDiodon hystrix
Stoplight ParrotfishSparisoma viride
West Indian ManateeTrichechus manatus
Yellow Longnose ButterflyfishForcipiger flavissimus
Yellow StingrayUrobatis jamaicensis
Explore Mexico on the map
Frequently asked questions about Mexico
What are the best dive destinations in Mexico?
Mexico has 8 dive destinations, including Isla Mujeres, Baja California Sur, Cozumel, Guadalupe Island, Holbox, and Playa del Carmen.
When is the best time to dive in Mexico?
It depends on where you dive in Mexico: Isla Mujeres from November to May, Baja California Sur from July to November, Cozumel all year round, Guadalupe Island from August to November, and Holbox from June to August.
What marine life can you see diving in Mexico?
Divers can encounter 82 species in Mexico. Highlights include Blue Shark, Bull Shark, California Sea Lion, Caribbean Reef Shark, Common Bottlenose Dolphin, and Common Thresher Shark.
When can you see the Blue Shark in Mexico?
The Blue Shark is most often seen in Mexico from April to September.
When can you see the Bull Shark in Mexico?
The Bull Shark is most often seen in Mexico from November to April.
When can you see the California Sea Lion in Mexico?
The California Sea Lion is most often seen in Mexico from September to May.
What is the water temperature in Mexico?
Water temperature across Mexico ranges from 16°C at Guadalupe Island to 31°C at Isla Mujeres.
What wetsuit do I need to dive in Mexico?
The water across Mexico ranges from 16°C to 31°C, so pack anything from a rash guard or a 1–3 mm shorty to a 7 mm wetsuit depending on the site and the season.
What is the visibility like when diving in Mexico?
Visibility in Mexico ranges from 5 m to 45 m. The clearest water is found at Cozumel.
What can you see on a night dive in Mexico?
After dark, Mexico reveals nocturnal species such as Blue Shark, Caribbean Reef Shark, Nurse Shark, Spinner Dolphin, Whitetip Reef Shark, and Caribbean Reef Octopus.
Every answer is built from the conditions and sightings data we keep for Mexico. Spotted something that looks off?
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