Isla Cerralvo

Mexicobeginner

Conditions & tides

Channel site — tidal current funnels through here and can run fast, changing quickly with the tide. It is usually strongest around mid-tide and eases near the slack windows below. Dive with a local operator who knows the timing.

Isla CerralvoMexico

Good · 5/5

Approximate area — exact dive location unconfirmed; conditions reflect the general vicinity

Good5/5

Calm and diveable right now — best window today 8 AM–6 PM.

Wind9 kn N

Current~0.1 kn S · model

Swell

0.4 m · 4s · NNW

Water

30 °C

Max depth

Not confirmed

Conditions through the day

7 AM7 PM

Calmest current near slack — 01:15 & 14:15 local

Sunrise 06:30 · Sunset 17:36 local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.3 m — the component of the swell aimed at this site’s exposed face. Strong-current reef: plan a drift and enter near the slack windows above. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Isla Cerralvo is the most southern island in the Sea of Cortez, off Baja California, and is also known as Jacques Cousteau Island. Dives here are made from the boat, and the island has small caves and swim-throughs as well as open water.

From July to October large pelagic fish, sea lions, giant oceanic manta rays and mobula rays show up, and scalloped hammerheads, whale sharks and bottlenose dolphins have also been reported. Currents can be strong, and water temperatures range from 22 to 28 degrees Celsius.

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