Billy's Grotto

10–25 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal91/100

Waves

0.9 m

7.5 s

Swell

0.5 m

8.1 s

Current speed

0.7 km/h

flowing toward W

Water temperature

29.3°C

Wind

11.2 km/h

→ E

Sea level

0.2 m

rising

WavesWatch

SwellCalm

Current speedCalm

Planning window

16:00–17:00

Calmest model window

Forecast Overview

Sun, Oct 18Watch

Waves0.8–0.9 mCurrent speed0.8 km/h maxWater temperature29.5°C

Mon, Oct 19Watch

Waves0.8–0.9 mCurrent speed0.7 km/h maxWater temperature29.4°C

Tue, Oct 20Watch

Waves0.8–0.9 mCurrent speed0.7 km/h maxWater temperature29.5°C

TodayWatch

Waves0.9–0.9 mCurrent speed0.4 km/h maxWater temperature29.4°C

Next 72 hours

05:00

Waves: 0.9 m

Current speed: 0.7 km/h

Water temperature: 29.3°C

11:00

Waves: 0.9 m

Current speed: 0.7 km/h

Water temperature: 29.5°C

17:00

Waves: 0.8 m

Current speed: 0.6 km/h

Water temperature: 29.6°C

23:00

Waves: 0.8 m

Current speed: 0.5 km/h

Water temperature: 29.4°C

05:00

Waves: 0.8 m

Current speed: 0.4 km/h

Water temperature: 29.4°C

11:00

Waves: 0.9 m

Current speed: 0.7 km/h

Water temperature: 29.5°C

17:00

Waves: 0.8 m

Current speed: 0.7 km/h

Water temperature: 29.5°C

23:00

Waves: 0.8 m

Current speed: 0.5 km/h

Water temperature: 29.4°C

05:00

Waves: 0.9 m

Current speed: 0.5 km/h

Water temperature: 29.4°C

11:00

Waves: 0.9 m

Current speed: 0.7 km/h

Water temperature: 29.5°C

17:00

Waves: 0.9 m

Current speed: 0.6 km/h

Water temperature: 29.6°C

23:00

Waves: 0.9 m

Current speed: 0.4 km/h

Water temperature: 29.5°C

Catalog depth10–25 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-Jun

Peak month

Sep 28.8°

Jan26.5°

Feb26.2°

Mar26.2°

Apr26.8°

May27.3°

Jun27.8°

Jul28.0°

Aug28.5°

Sep28.8°

Oct28.8°

Nov28.3°

Dec27.3°

Current: mild

Typical visibility: 25 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

cavesalt Wateradvanced 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

Angelfish

Pomacanthus paru

DeepLog1

Pelecanus occidentalis

Nearby OBIS observations8

Acanthurus coeruleus

Nearby OBIS observations6

Chaetodon capistratus

Nearby OBIS observations5

Cocos nucifera

Nearby OBIS observations4

Coenobita clypeatus

Nearby OBIS observations4

Sabellastarte magnifica

Nearby OBIS observations4

Thalassoma bifasciatum

Nearby OBIS observations4

Acanthopleura granulata

Nearby OBIS observations3

Arenaria interpres

Nearby OBIS observations3

Elacatinus evelynae

Nearby OBIS observations3

Melichthys niger

Nearby OBIS observations3

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

DeepLog + OBIS →