Koh Racha Yai

Thailand

Koh Racha Yai

5–25 mMax Depth
boatEntry
4Species

Conditions Summary

Model forecast · local time (GMT+7)

Planning signal91/100
Waves
0.6 m
6.1 s
Swell
0.5 m
4.1 s
Current speed
0.4 km/h
flowing toward E
Water temperature
30.2°C
Wind
19.0 km/h
→ W
Sea level
0.9 m
rising
WavesWatch
SwellCalm
Current speedCalm
Planning window
03:3003:00
Calmest model window

Forecast Overview

TodayWatch
Waves0.5–0.6 mCurrent speed0.7 km/h maxWater temperature30.4°C
TomorrowWatch
Waves0.6–0.8 mCurrent speed0.7 km/h maxWater temperature30.4°C
Tue, Sep 8Watch
Waves0.8–1.0 mCurrent speed0.9 km/h maxWater temperature30.5°C
Wed, Sep 9Watch
Waves1.0–1.0 mCurrent speed0.3 km/h maxWater temperature30.5°C
Next 72 hours
03:00
Waves: 0.6 m
Current speed: 0.4 km/h
Water temperature: 30.2°C
09:00
Waves: 0.6 m
Current speed: 0.3 km/h
Water temperature: 30.4°C
15:00
Waves: 0.5 m
Current speed: 0.6 km/h
Water temperature: 30.6°C
21:00
Waves: 0.6 m
Current speed: 0.2 km/h
Water temperature: 30.4°C
03:00
Waves: 0.6 m
Current speed: 0.6 km/h
Water temperature: 30.3°C
09:00
Waves: 0.6 m
Current speed: 0.2 km/h
Water temperature: 30.4°C
15:00
Waves: 0.7 m
Current speed: 0.6 km/h
Water temperature: 30.6°C
21:00
Waves: 0.8 m
Current speed: 0.2 km/h
Water temperature: 30.5°C
03:00
Waves: 0.8 m
Current speed: 0.4 km/h
Water temperature: 30.4°C
09:00
Waves: 0.8 m
Current speed: 0.0 km/h
Water temperature: 30.5°C
15:00
Waves: 0.9 m
Current speed: 0.4 km/h
Water temperature: 30.6°C
21:00
Waves: 0.9 m
Current speed: 0.6 km/h
Water temperature: 30.5°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

Nov-Apr

Peak month

May 30.0°

Jan28.4°
Feb28.7°
Mar29.3°
Apr29.9°
May30.0°
Jun29.8°
Jul29.6°
Aug29.5°
Sep29.0°
Oct28.8°
Nov28.8°
Dec28.6°
Current: mild
Typical visibility: 20 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

reefsalt Waterbeginner Difficulty

Data source & current conditions

Profile facts were imported from DeepLog. ScubaProof adds nearby-center links and presents the recorded fields without treating missing data as confirmation. Conditions, access, permits, and site suitability can change; confirm them with a local operator before diving.

View the source profile →

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
Bubble
Pseudorca crassidens
DeepLog1
Goldlined spinefoot
Siganus guttatus
DeepLog1
Reliable chromodoris
Goniobranchus fidelis
DeepLog1
Stony coral
Leptoria phrygia
DeepLog1
Gymnothorax javanicus
Nearby OBIS observations4
Scorpaenodes guamensis
Nearby OBIS observations4
Abudefduf vaigiensis
Nearby OBIS observations3
Chrysiptera
Nearby OBIS observations3
Dascyllus trimaculatus
Nearby OBIS observations3
Eviota albolineata
Nearby OBIS observations3
Gobiodon
Nearby OBIS observations3
Gobiodon quinquestrigatus
Nearby OBIS observations3
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS

Photos

Koh Racha Yai photo 2
Koh Racha Yai photo 3
Koh Racha Yai photo 4
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