British Virgin Islands

Flat Cay

8–25 mMax Depth

boatEntry

74Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal81/100

Waves

0.6 m

5.7 s

Swell

0.3 m

6.8 s

Current speed

2.5 km/h

flowing toward S

Water temperature

29.5°C

Wind

16.0 km/h

→ SE

Sea level

0.3 m

falling

WavesWatch

SwellCalm

Current speedWatch

Planning window

05:15–05:00

Calmest model window

Forecast Overview

Sun, Oct 18Watch

Waves0.6–0.6 mCurrent speed3.8 km/h maxWater temperature29.8°C

Mon, Oct 19Challenging

Waves0.5–0.6 mCurrent speed3.4 km/h maxWater temperature29.7°C

TodayChallenging

Waves0.6–0.9 mCurrent speed3.6 km/h maxWater temperature29.7°C

TomorrowChallenging

Waves0.8–0.8 mCurrent speed3.6 km/h maxWater temperature29.7°C

Next 72 hours

05:00

Waves: 0.6 m

Current speed: 2.5 km/h

Water temperature: 29.5°C

11:00

Waves: 0.6 m

Current speed: 3.2 km/h

Water temperature: 29.8°C

17:00

Waves: 0.6 m

Current speed: 2.6 km/h

Water temperature: 29.9°C

23:00

Waves: 0.6 m

Current speed: 3.8 km/h

Water temperature: 29.7°C

05:00

Waves: 0.6 m

Current speed: 2.9 km/h

Water temperature: 29.6°C

11:00

Waves: 0.6 m

Current speed: 3.1 km/h

Water temperature: 29.7°C

17:00

Waves: 0.5 m

Current speed: 2.2 km/h

Water temperature: 29.8°C

23:00

Waves: 0.6 m

Current speed: 3.4 km/h

Water temperature: 29.7°C

05:00

Waves: 0.7 m

Current speed: 2.5 km/h

Water temperature: 29.6°C

11:00

Waves: 0.9 m

Current speed: 2.7 km/h

Water temperature: 29.8°C

17:00

Waves: 0.8 m

Current speed: 1.3 km/h

Water temperature: 29.9°C

23:00

Waves: 0.8 m

Current speed: 2.7 km/h

Water temperature: 29.7°C

Catalog depth8–25 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-May

Peak month

Sep 28.9°

Jan26.4°

Feb26.1°

Mar26.1°

Apr26.7°

May27.4°

Jun28.0°

Jul28.2°

Aug28.6°

Sep28.9°

Oct28.9°

Nov28.3°

Dec27.2°

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.

Nearby live cameras

Check the water around Flat Cay before you dive. Feeds are provided by third parties and may occasionally be offline.

1 camera

Public live camera

3.3 km awayOpenStreetMap

Open

area

Check is getting oldLast checked 645h ago

External source · live video is not independently verified

No history is stored for this external source.

Public feedCatalogued Sep 21, 2026

Live availability is controlled by each camera provider. Use the feed as a quick surface check and confirm current conditions with a local dive 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

Magpie shell

Cittarium pica

DeepLog7

Red mangrove

Rhizophora mangle

DeepLog6

Checkered puffer

Sphoeroides testudineus

DeepLog5

West indian fuzzy chiton

Acanthopleura granulata

DeepLog5

French grunt

Haemulon flavolineatum

DeepLog4

Nurse shark

Ginglymostoma cirratum

DeepLog4

Turtle-grass

Thalassia testudinum

DeepLog4

Sergeant-major

Abudefduf saxatilis

DeepLog3

Striped parrotfish

Scarus iseri

DeepLog3

Tesselate nerite

Nerita tessellata

DeepLog3

Angelfish

Pomacanthus paru

DeepLog2

Beaded periwinkle

Cenchritis muricatus

DeepLog2

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

DeepLog + OBIS →

Photos