Australia

Williamstown Beach

5–6 mMax Depth

shoreEntry

40Species

Conditions Summary

Model forecast · local time (GMT+11)

Model conditions signal100/100

Waves

0.1 m

4.3 s

Swell

0.1 m

10.6 s

Current speed

0.3 km/h

flowing toward SW

Water temperature

17.2°C

Wind

12.2 km/h

→ NE

Sea level

-0.6 m

falling

WavesCalm

SwellCalm

Current speedCalm

Planning window

23:00–00:00

Calmest model window

Forecast Overview

Mon, Oct 19Calm

Waves0.1–0.1 mCurrent speed0.3 km/h maxWater temperature17.2°C

Tue, Oct 20Calm

Waves0.1–0.4 mCurrent speed0.4 km/h maxWater temperature17.2°C

TodayCalm

Waves0.1–0.3 mCurrent speed0.7 km/h maxWater temperature17.8°C

TomorrowCalm

Waves0.1–0.3 mCurrent speed0.4 km/h maxWater temperature18.0°C

Next 72 hours

23:00

Waves: 0.1 m

Current speed: 0.3 km/h

Water temperature: 17.2°C

05:00

Waves: 0.3 m

Current speed: 0.3 km/h

Water temperature: 17.0°C

11:00

Waves: 0.4 m

Current speed: 0.4 km/h

Water temperature: 17.0°C

17:00

Waves: 0.3 m

Current speed: 0.2 km/h

Water temperature: 17.5°C

23:00

Waves: 0.1 m

Current speed: 0.2 km/h

Water temperature: 17.4°C

05:00

Waves: 0.1 m

Current speed: 0.2 km/h

Water temperature: 17.4°C

11:00

Waves: 0.1 m

Current speed: 0.2 km/h

Water temperature: 17.5°C

17:00

Waves: 0.3 m

Current speed: 0.7 km/h

Water temperature: 18.7°C

23:00

Waves: 0.2 m

Current speed: 0.0 km/h

Water temperature: 17.8°C

05:00

Waves: 0.1 m

Current speed: 0.0 km/h

Water temperature: 17.7°C

11:00

Waves: 0.2 m

Current speed: 0.4 km/h

Water temperature: 17.9°C

17:00

Waves: 0.3 m

Current speed: 0.3 km/h

Water temperature: 18.5°C

Catalog depth5–6 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

Feb 20.7°

Jan20.1°

Feb20.7°

Mar19.9°

Apr17.7°

May15.2°

Jun13.0°

Jul11.6°

Aug11.1°

Sep12.1°

Oct14.3°

Nov16.5°

Dec18.5°

Current: mild

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

reefsalt Waterbeginner 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

Mosaic sea jelly

Catostylus mosaicus

DeepLog11

Dusky morwong

Dactylophora nigricans

DeepLog9

Eastern shovelnose stingaree

Trygonoptera imitata

DeepLog9

Purple sea urchin

Heliocidaris erythrogramma

DeepLog8

Cyanea annaskala

DeepLog7

Slender-spined porcupine fish

Diodon nicthemerus

DeepLog7

Southern fiddler ray

Trygonorrhina dumerilii

DeepLog7

Cellana tramoserica

DeepLog5

Cominella lineolata

DeepLog5

Pot-bellied seahorse

Hippocampus abdominalis

DeepLog5

Purple-orange seastar

Asterias amurensis

DeepLog5

Warty ear shell

Haliotis rubra

DeepLog5

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

DeepLog + OBIS →

Photos