Asia › Thailand › Khao Lak

Koh Tachai Similan National Park

BoatEntry

Conditions Summary

Model forecast · local time (GMT+7)

Model conditions signal100/100

Waves

0.4 m

14.7 s

Swell

0.4 m

12.7 s

Current speed

0.4 km/h

flowing toward N

Water temperature

30.7°C

Wind

9.4 km/h

→ W

Sea level

0.6 m

rising

WavesCalm

SwellCalm

Current speedCalm

Planning window

14:30–14:00

Calmest model window

Forecast Overview

TodayCalm

Waves0.4–0.4 mCurrent speed0.4 km/h maxWater temperature30.6°C

TomorrowCalm

Waves0.4–0.6 mCurrent speed0.5 km/h maxWater temperature30.3°C

Wed, Oct 21Watch

Waves0.6–0.7 mCurrent speed1.0 km/h maxWater temperature30.1°C

Thu, Oct 22Watch

Waves0.6–0.6 mCurrent speed1.2 km/h maxWater temperature30.0°C

Next 72 hours

14:00

Waves: 0.4 m

Current speed: 0.4 km/h

Water temperature: 30.7°C

20:00

Waves: 0.4 m

Current speed: 0.2 km/h

Water temperature: 30.5°C

02:00

Waves: 0.4 m

Current speed: 0.5 km/h

Water temperature: 30.3°C

08:00

Waves: 0.5 m

Current speed: 0.3 km/h

Water temperature: 30.2°C

14:00

Waves: 0.5 m

Current speed: 0.3 km/h

Water temperature: 30.3°C

20:00

Waves: 0.5 m

Current speed: 0.2 km/h

Water temperature: 30.3°C

02:00

Waves: 0.6 m

Current speed: 0.5 km/h

Water temperature: 30.2°C

08:00

Waves: 0.6 m

Current speed: 0.4 km/h

Water temperature: 30.1°C

14:00

Waves: 0.6 m

Current speed: 0.9 km/h

Water temperature: 30.2°C

20:00

Waves: 0.7 m

Current speed: 0.6 km/h

Water temperature: 30.1°C

02:00

Waves: 0.6 m

Current speed: 1.0 km/h

Water temperature: 30.0°C

08:00

Waves: 0.6 m

Current speed: 0.4 km/h

Water temperature: 30.0°C

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.

Explore nearby centers on the map

Loading…

Dive Types

DriftReefSalt Water

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

Panulirus versicolor

Nearby OBIS observations7

Platax teira

Nearby OBIS observations7

Caranx melampygus

Nearby OBIS observations6

Chaetodon collare

Nearby OBIS observations6

Choriaster granulatus

Nearby OBIS observations6

Acanthurus leucosternon

Nearby OBIS observations5

Siganus javus

Nearby OBIS observations5

Tambja affinis

Nearby OBIS observations5

Balistoides viridescens

Nearby OBIS observations4

Cirrhitichthys oxycephalus

Nearby OBIS observations4

Gymnothorax javanicus

Nearby OBIS observations4

Plectorhinchus chaetodonoides

Nearby OBIS observations4

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

OBIS source →

Photos

Koh Tachai Similan National Park photo 2