United States

Hilton Head Reef

12.2–16.8 mMax Depth

boatEntry

1Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal71/100

Waves

2.2 m

7.6 s

Swell

1.4 m

8.7 s

Current speed

1.5 km/h

flowing toward SW

Water temperature

24.4°C

Wind

50.0 km/h

→ NE

Sea level

0.1 m

rising

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

Sun, Oct 18Challenging

Waves2.1–2.1 mCurrent speed1.4 km/h maxWater temperature24.4°C

Mon, Oct 19Challenging

Waves1.7–2.4 mCurrent speed1.5 km/h maxWater temperature24.0°C

Tue, Oct 20Challenging

Waves1.2–1.6 mCurrent speed1.2 km/h maxWater temperature23.4°C

TodayChallenging

Waves1.0–1.4 mCurrent speed1.2 km/h maxWater temperature23.0°C

Next 72 hours

23:00

Waves: 2.1 m

Current speed: 1.4 km/h

Water temperature: 24.4°C

05:00

Waves: 2.3 m

Current speed: 1.4 km/h

Water temperature: 24.2°C

11:00

Waves: 2.0 m

Current speed: 1.5 km/h

Water temperature: 24.0°C

17:00

Waves: 1.7 m

Current speed: 0.7 km/h

Water temperature: 23.9°C

23:00

Waves: 1.7 m

Current speed: 1.0 km/h

Water temperature: 23.8°C

05:00

Waves: 1.6 m

Current speed: 0.9 km/h

Water temperature: 23.5°C

11:00

Waves: 1.5 m

Current speed: 1.2 km/h

Water temperature: 23.4°C

17:00

Waves: 1.2 m

Current speed: 0.6 km/h

Water temperature: 23.4°C

23:00

Waves: 1.2 m

Current speed: 0.9 km/h

Water temperature: 23.3°C

05:00

Waves: 1.4 m

Current speed: 0.8 km/h

Water temperature: 23.1°C

11:00

Waves: 1.3 m

Current speed: 1.2 km/h

Water temperature: 23.0°C

17:00

Waves: 1.1 m

Current speed: 0.5 km/h

Water temperature: 23.0°C

Catalog depth12.2–16.8 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

Apr-Oct

Peak month

Aug 28.6°

Jan16.3°

Feb15.6°

Mar16.4°

Apr19.2°

May23.1°

Jun26.6°

Jul28.5°

Aug28.6°

Sep27.4°

Oct24.4°

Nov20.4°

Dec17.8°

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

wrecksalt 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

Caretta atlantic loggerhead

Caretta caretta

DeepLog1

Northern Gannet

Morus bassanus

Nearby OBIS observations34

Common Loon

Gavia immer

Nearby OBIS observations14

Red-throated Loon

Gavia stellata

Nearby OBIS observations10

Bonaparte's gull

Larus philadelphia

Nearby OBIS observations9

Loligo

Nearby OBIS observations8

Chilomycterus schoepfii

Nearby OBIS observations6

Chloroscombrus chrysurus

Nearby OBIS observations6

Prionotus scitulus

Nearby OBIS observations6

Synodus foetens

Nearby OBIS observations6

Unidentified Loon

Gavia

Nearby OBIS observations6

Citharichthys macrops

Nearby OBIS observations5

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

DeepLog + OBIS →