Saint Maarten

Charlie's Shool

5–25 mMax Depth

boatEntry

26Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal91/100

Waves

0.7 m

9.3 s

Swell

0.4 m

12.6 s

Current speed

0.2 km/h

flowing toward W

Water temperature

29.5°C

Wind

13.5 km/h

→ SE

Sea level

0.3 m

falling

WavesWatch

SwellCalm

Current speedCalm

Planning window

03:15–03:00

Calmest model window

Forecast Overview

Tue, Oct 20Watch

Waves0.6–0.9 mCurrent speed0.6 km/h maxWater temperature29.6°C

TodayWatch

Waves0.8–0.9 mCurrent speed0.6 km/h maxWater temperature29.6°C

TomorrowWatch

Waves0.8–0.9 mCurrent speed0.6 km/h maxWater temperature29.6°C

Fri, Oct 23Watch

Waves0.8–0.8 mCurrent speed0.2 km/h maxWater temperature29.6°C

Next 72 hours

03:00

Waves: 0.6 m

Current speed: 0.2 km/h

Water temperature: 29.5°C

09:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 29.5°C

15:00

Waves: 0.9 m

Current speed: 0.6 km/h

Water temperature: 29.9°C

21:00

Waves: 0.9 m

Current speed: 0.4 km/h

Water temperature: 29.6°C

03:00

Waves: 0.9 m

Current speed: 0.2 km/h

Water temperature: 29.5°C

09:00

Waves: 0.9 m

Current speed: 0.2 km/h

Water temperature: 29.5°C

15:00

Waves: 0.8 m

Current speed: 0.6 km/h

Water temperature: 29.8°C

21:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 29.6°C

03:00

Waves: 0.8 m

Current speed: 0.3 km/h

Water temperature: 29.5°C

09:00

Waves: 0.9 m

Current speed: 0.2 km/h

Water temperature: 29.6°C

15:00

Waves: 0.9 m

Current speed: 0.6 km/h

Water temperature: 29.8°C

21:00

Waves: 0.8 m

Current speed: 0.2 km/h

Water temperature: 29.6°C

Catalog depth5–25 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-Apr

Peak month

Sep 28.8°

Jan26.4°

Feb26.1°

Mar26.1°

Apr26.7°

May27.4°

Jun27.9°

Jul28.1°

Aug28.5°

Sep28.8°

Oct28.8°

Nov28.2°

Dec27.3°

Current: mild

Typical visibility: 25 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

Loading…

Dive Types

reefsalt Waterbeginner 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

Felimare fregona

DeepLog4

Christmas tree worm

Spirobranchus giganteus

DeepLog2

Redbelly

Sparisoma viride

DeepLog2

Sun anemone

Stichodactyla helianthus

DeepLog2

White grunt

Haemulon plumierii

DeepLog2

Atlantic green turtle

Chelonia mydas

DeepLog1

Beaded sea cucumber

Euapta lappa

DeepLog1

Black sea rod

Plexaura homomalla

DeepLog1

Caribbean reef octopus

Octopus briareus

DeepLog1

Chrysaora lactea

DeepLog1

Felimida binza

DeepLog1

Glasseye

Heteropriacanthus cruentatus

DeepLog1

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

DeepLog + OBIS →

Photos