Thailand

Ko Rok Nai

8–12 mMax Depth

boatEntry

80Species

Conditions Summary

Model forecast · local time (GMT+7)

Model conditions signal100/100

Waves

0.4 m

6.3 s

Swell

0.3 m

3.5 s

Current speed

0.3 km/h

flowing toward SE

Water temperature

30.8°C

Wind

6.9 km/h

→ SE

Sea level

0.3 m

falling

WavesCalm

SwellCalm

Current speedCalm

Planning window

22:30–22:00

Calmest model window

Forecast Overview

Tue, Oct 20Calm

Waves0.3–0.4 mCurrent speed0.3 km/h maxWater temperature30.8°C

TodayCalm

Waves0.3–0.4 mCurrent speed0.8 km/h maxWater temperature31.0°C

TomorrowCalm

Waves0.3–0.4 mCurrent speed1.0 km/h maxWater temperature31.1°C

Fri, Oct 23Calm

Waves0.3–0.5 mCurrent speed0.8 km/h maxWater temperature31.1°C

Next 72 hours

22:00

Waves: 0.4 m

Current speed: 0.3 km/h

Water temperature: 30.8°C

04:00

Waves: 0.3 m

Current speed: 0.3 km/h

Water temperature: 30.7°C

10:00

Waves: 0.3 m

Current speed: 0.4 km/h

Water temperature: 31.0°C

16:00

Waves: 0.4 m

Current speed: 0.3 km/h

Water temperature: 31.2°C

22:00

Waves: 0.4 m

Current speed: 0.8 km/h

Water temperature: 31.0°C

04:00

Waves: 0.4 m

Current speed: 0.4 km/h

Water temperature: 30.8°C

10:00

Waves: 0.4 m

Current speed: 0.9 km/h

Water temperature: 31.1°C

16:00

Waves: 0.3 m

Current speed: 0.4 km/h

Water temperature: 31.3°C

22:00

Waves: 0.3 m

Current speed: 1.0 km/h

Water temperature: 31.0°C

04:00

Waves: 0.3 m

Current speed: 0.2 km/h

Water temperature: 30.8°C

10:00

Waves: 0.3 m

Current speed: 0.6 km/h

Water temperature: 31.1°C

16:00

Waves: 0.5 m

Current speed: 0.4 km/h

Water temperature: 31.3°C

Catalog depth8–12 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

Not available

Peak month

May 30.3°

Jan28.6°

Feb28.9°

Mar29.5°

Apr30.2°

May30.3°

Jun30.2°

Jul29.9°

Aug29.7°

Sep29.3°

Oct29.1°

Nov29.0°

Dec28.7°

Current: moderate

Typical visibility: 7.5 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

driftsalt 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

Parrotfish

Scarus prasiognathos

DeepLog12

Moon wrasse

Thalassoma lunare

DeepLog10

Dusky parrotfish

Scarus niger

DeepLog8

Puller

Amphiprion ocellaris

DeepLog7

Checkerboard wrasse

Halichoeres hortulanus

DeepLog5

Goldlined spinefoot

Siganus guttatus

DeepLog5

Moorish idol

Zanclus cornutus

DeepLog5

Blackeye thicklip

Hemigymnus melapterus

DeepLog4

Blackspotted puffer

Arothron nigropunctatus

DeepLog4

Checkered snapper

Lutjanus decussatus

DeepLog4

Indo-Pacific sergeant

Abudefduf vaigiensis

DeepLog4

Red-fin butterflyfish

Chaetodon trifasciatus

DeepLog4

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

DeepLog + OBIS →

Photos