Malaysia

Siwa Reef

10–20 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT+8)

Model conditions signal100/100

Waves

0.3 m

5.7 s

Swell

0.2 m

6.2 s

Current speed

0.2 km/h

flowing toward E

Water temperature

31.6°C

Wind

12.5 km/h

→ NW

Sea level

0.4 m

rising

WavesCalm

SwellCalm

Current speedCalm

Planning window

16:30–16:00

Calmest model window

Forecast Overview

Tue, Oct 20Calm

Waves0.2–0.3 mCurrent speed0.3 km/h maxWater temperature31.5°C

TodayCalm

Waves0.2–0.3 mCurrent speed0.5 km/h maxWater temperature31.4°C

TomorrowCalm

Waves0.2–0.3 mCurrent speed0.5 km/h maxWater temperature31.4°C

Fri, Oct 23Calm

Waves0.2–0.3 mCurrent speed0.5 km/h maxWater temperature31.3°C

Next 72 hours

16:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 31.6°C

22:00

Waves: 0.2 m

Current speed: 0.0 km/h

Water temperature: 31.4°C

04:00

Waves: 0.2 m

Current speed: 0.3 km/h

Water temperature: 31.2°C

10:00

Waves: 0.2 m

Current speed: 0.4 km/h

Water temperature: 31.2°C

16:00

Waves: 0.3 m

Current speed: 0.4 km/h

Water temperature: 31.5°C

22:00

Waves: 0.3 m

Current speed: 0.0 km/h

Water temperature: 31.4°C

04:00

Waves: 0.2 m

Current speed: 0.3 km/h

Water temperature: 31.2°C

10:00

Waves: 0.2 m

Current speed: 0.3 km/h

Water temperature: 31.2°C

16:00

Waves: 0.2 m

Current speed: 0.4 km/h

Water temperature: 31.5°C

22:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 31.4°C

04:00

Waves: 0.2 m

Current speed: 0.3 km/h

Water temperature: 31.3°C

10:00

Waves: 0.2 m

Current speed: 0.2 km/h

Water temperature: 31.2°C

Catalog depth10–20 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

Not available

Peak month

Jun 30.1°

Jan27.9°

Feb27.3°

Mar28.0°

Apr29.3°

May30.0°

Jun30.1°

Jul30.0°

Aug29.9°

Sep29.7°

Oct29.4°

Nov29.4°

Dec28.9°

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 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

North African catfish

Clarias gariepinus

DeepLog1

Cocos nucifera

Nearby OBIS observations7

Petrosia

Nearby OBIS observations5

Phyllidiopsis shireenae

Nearby OBIS observations4

Phyllodesmium briareum

Nearby OBIS observations4

Coryphellina exoptata

Nearby OBIS observations3

Halgerda batangas

Nearby OBIS observations3

Phyllidia picta

Nearby OBIS observations3

Phyllidiella pustulosa

Nearby OBIS observations3

Phyllidiopsis xishaensis

Nearby OBIS observations3

Cinachyrella

Nearby OBIS observations2

Goniobranchus kuniei

Nearby OBIS observations2

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

DeepLog + OBIS →