Central America › Belize › Caye Caulker

The Great Blue Hole

5–40 mMax Depth

BoatEntry

2Species

Conditions Summary

Model forecast · local time (GMT-6)

Model conditions signal91/100

Waves

0.6 m

5.8 s

Swell

0.4 m

5.3 s

Current speed

0.4 km/h

flowing toward NW

Water temperature

30.4°C

Wind

9.9 km/h

→ E

Sea level

0.2 m

WavesWatch

SwellCalm

Current speedCalm

Planning window

12:30–12:00

Calmest model window

Forecast Overview

Wed, Oct 14Watch

Waves0.6–0.9 mCurrent speed0.7 km/h maxWater temperature30.3°C

Thu, Oct 15Watch

Waves0.7–0.9 mCurrent speed0.6 km/h maxWater temperature30.1°C

Fri, Oct 16Watch

Waves0.8–0.9 mCurrent speed0.6 km/h maxWater temperature30.2°C

Sat, Oct 17Watch

Waves0.7–0.8 mCurrent speed0.4 km/h maxWater temperature30.1°C

Next 72 hours

12:00

Waves: 0.6 m

Current speed: 0.3 km/h

Water temperature: 30.4°C

18:00

Waves: 0.7 m

Current speed: 0.6 km/h

Water temperature: 30.2°C

00:00

Waves: 0.8 m

Current speed: 0.6 km/h

Water temperature: 30.1°C

06:00

Waves: 0.7 m

Current speed: 0.3 km/h

Water temperature: 30.0°C

12:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 30.3°C

18:00

Waves: 0.8 m

Current speed: 0.5 km/h

Water temperature: 30.2°C

00:00

Waves: 0.9 m

Current speed: 0.4 km/h

Water temperature: 30.1°C

06:00

Waves: 0.8 m

Current speed: 0.3 km/h

Water temperature: 30.0°C

12:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 30.4°C

18:00

Waves: 0.8 m

Current speed: 0.5 km/h

Water temperature: 30.2°C

00:00

Waves: 0.8 m

Current speed: 0.3 km/h

Water temperature: 30.1°C

06:00

Waves: 0.7 m

Current speed: 0.3 km/h

Water temperature: 30.0°C

Catalog depth5–40 m

Data sources & field guideOpen-Meteo Marine + Weather APIs

Planning context, not a safety guarantee. Coastal model accuracy is limited. Confirm the actual briefing, entry, exit, and suitability with a local operator.

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Dec-Jun

Peak month

Sep 29.5°

Jan26.8°

Feb26.6°

Mar26.8°

Apr27.4°

May28.2°

Jun28.7°

Jul28.8°

Aug29.2°

Sep29.5°

Oct29.1°

Nov28.2°

Dec27.3°

Current: moderate

Typical visibility: 30 m

Historical planning data from the recorded site profile. Water temperature and conditions can vary by day, depth, and weather; confirm current conditions with a local operator.

Explore nearby centers on the map

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Dive Types

WallCaverncenoteSalt Wateradvanced Difficulty

Questions to ask a local operator

What are today's current, visibility, entry, and exit conditions?
Does the planned route stay within my certification and recent experience?
Are there local permits, conservation rules, or equipment requirements?

Common Species

12 km · nearby observations

Bluehead

Thalassoma bifasciatum

DeepLog1

Midnight parrotfish

Scarus coelestinus

DeepLog1

Acanthurus coeruleus

Nearby OBIS observations16

Diploria labyrinthiformis

Nearby OBIS observations16

Pseudodiploria strigosa

Nearby OBIS observations14

Cephalopholis cruentata

Nearby OBIS observations10

Acanthurus bahianus

Nearby OBIS observations9

Colpophyllia natans

Nearby OBIS observations9

Orbicella annularis

Nearby OBIS observations8

Agaricia

Nearby OBIS observations7

Montastraea cavernosa

Nearby OBIS observations7

Orbicella faveolata

Nearby OBIS observations7

These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.

DeepLog + OBIS →

Photos