Sri Lanka

Thunatta Gala

5–25 mMax Depth

2Species

Conditions Summary

Model forecast · local time (GMT+5:30)

Model conditions signal62/100

Waves

1.6 m

11.8 s

Swell

1.5 m

10.4 s

Current speed

0.9 km/h

flowing toward SE

Water temperature

30.5°C

Wind

14.3 km/h

→ NW

Sea level

0.4 m

falling

WavesChallenging

SwellChallenging

Current speedCalm

Forecast Overview

Tue, Oct 20Challenging

Waves1.5–1.6 mCurrent speed0.9 km/h maxWater temperature30.3°C

TodayChallenging

Waves1.4–1.5 mCurrent speed0.6 km/h maxWater temperature30.2°C

TomorrowChallenging

Waves1.4–1.6 mCurrent speed0.6 km/h maxWater temperature30.0°C

Fri, Oct 23Challenging

Waves1.6–1.6 mCurrent speed0.6 km/h maxWater temperature29.9°C

Next 72 hours

15:00

Waves: 1.6 m

Current speed: 0.9 km/h

Water temperature: 30.5°C

21:00

Waves: 1.5 m

Current speed: 0.6 km/h

Water temperature: 30.3°C

03:00

Waves: 1.5 m

Current speed: 0.2 km/h

Water temperature: 30.1°C

09:00

Waves: 1.5 m

Current speed: 0.2 km/h

Water temperature: 30.2°C

15:00

Waves: 1.5 m

Current speed: 0.3 km/h

Water temperature: 30.3°C

21:00

Waves: 1.5 m

Current speed: 0.6 km/h

Water temperature: 30.2°C

03:00

Waves: 1.4 m

Current speed: 0.5 km/h

Water temperature: 30.0°C

09:00

Waves: 1.5 m

Current speed: 0.4 km/h

Water temperature: 30.0°C

15:00

Waves: 1.5 m

Current speed: 0.5 km/h

Water temperature: 30.0°C

21:00

Waves: 1.6 m

Current speed: 0.4 km/h

Water temperature: 29.9°C

03:00

Waves: 1.6 m

Current speed: 0.4 km/h

Water temperature: 29.8°C

09:00

Waves: 1.6 m

Current speed: 0.2 km/h

Water temperature: 30.0°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

Apr 29.5°

Jan27.8°

Feb28.2°

Mar29.0°

Apr29.5°

May29.0°

Jun28.2°

Jul27.5°

Aug27.6°

Sep27.8°

Oct28.1°

Nov28.5°

Dec28.2°

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

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

Indo-Pacific sergeant

Abudefduf vaigiensis

DeepLog1

Ringtailed surgeonfish

Acanthurus xanthopterus

DeepLog1

Coenobita rugosus

Nearby OBIS observations10

Chelonia mydas

Nearby OBIS observations9

Balistapus undulatus

Nearby OBIS observations7

Stomopneustes variolaris

Nearby OBIS observations7

Monodactylus argenteus

Nearby OBIS observations6

Rhinecanthus aculeatus

Nearby OBIS observations6

Acanthurus triostegus

Nearby OBIS observations5

Muricidae

Nearby OBIS observations5

Chrysiptera brownriggii

Nearby OBIS observations4

Monetaria caputserpentis

Nearby OBIS observations4

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

DeepLog + OBIS →

Photos