Asia › Thailand › Koh Tao

Green Rock

8–25 mMax Depth

boatEntry

11Species

Conditions Summary

Model forecast · local time (GMT+7)

Model conditions signal100/100

Waves

0.1 m

3.6 s

Swell

0.1 m

3.0 s

Current speed

1.5 km/h

flowing toward SE

Water temperature

30.2°C

Wind

10.1 km/h

→ E

Sea level

0.7 m

rising

WavesCalm

SwellCalm

Current speedCalm

Planning window

09:00–10:00

Calmest model window

Forecast Overview

TodayWatch

Waves0.1–0.1 mCurrent speed2.2 km/h maxWater temperature30.5°C

TomorrowWatch

Waves0.0–0.1 mCurrent speed2.1 km/h maxWater temperature30.3°C

Fri, Oct 23Watch

Waves0.0–0.3 mCurrent speed1.9 km/h maxWater temperature30.2°C

Sat, Oct 24Watch

Waves0.1–0.3 mCurrent speed1.8 km/h maxWater temperature30.0°C

Next 72 hours

09:00

Waves: 0.1 m

Current speed: 1.5 km/h

Water temperature: 30.2°C

15:00

Waves: 0.1 m

Current speed: 1.8 km/h

Water temperature: 30.7°C

21:00

Waves: 0.1 m

Current speed: 2.1 km/h

Water temperature: 30.6°C

03:00

Waves: 0.1 m

Current speed: 1.9 km/h

Water temperature: 30.2°C

09:00

Waves: 0.1 m

Current speed: 1.7 km/h

Water temperature: 30.2°C

15:00

Waves: 0.0 m

Current speed: 1.8 km/h

Water temperature: 30.5°C

21:00

Waves: 0.0 m

Current speed: 1.7 km/h

Water temperature: 30.3°C

03:00

Waves: 0.1 m

Current speed: 1.9 km/h

Water temperature: 30.1°C

09:00

Waves: 0.2 m

Current speed: 1.5 km/h

Water temperature: 30.1°C

15:00

Waves: 0.1 m

Current speed: 1.8 km/h

Water temperature: 30.4°C

21:00

Waves: 0.2 m

Current speed: 1.8 km/h

Water temperature: 30.2°C

03:00

Waves: 0.1 m

Current speed: 1.8 km/h

Water temperature: 30.0°C

Catalog depth8–25 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.

Updated: cached data

Open-Meteo Marine + Weather APIs →

Dive readiness

Collecting the latest marine conditions and forecast signals.

Seasons · water temperature

12-month outlook

Best window

Feb-Oct

Peak month

May 30.2°

Jan27.7°

Feb28.2°

Mar28.9°

Apr29.9°

May30.2°

Jun29.8°

Jul29.4°

Aug29.1°

Sep29.0°

Oct28.9°

Nov28.5°

Dec27.9°

Current: moderate

Typical visibility: 15 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

reefpinnaclesalt Waterintermediate 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

Bluering angelfish

Pomacanthus annularis

DeepLog1

Leopard coralgrouper

Plectropomus leopardus

DeepLog1

Longfin grouper

Epinephelus quoyanus

DeepLog1

Redbelly yellowtail fusilier

Caesio cuning

DeepLog1

Reef cod

Epinephelus corallicola

DeepLog1

Russell's snapper

Lutjanus russellii

DeepLog1

Sharptooth cardinal

Cheilodipterus quinquelineatus

DeepLog1

Slender grouper

Anyperodon leucogrammicus

DeepLog1

Spot-fin porcupinefish

Diodon hystrix

DeepLog1

Yellowbelly devil

Amblyglyphidodon leucogaster

DeepLog1

Yellowtail tubelip

Diproctacanthus xanthurus

DeepLog1

Chaetodon wiebeli

Nearby OBIS observations10

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

DeepLog + OBIS →

Photos