Horseshoe Reef

North America › United States of America (USA) › Hawaii

Horseshoe Reef

10–3 mMax Depth
BoatEntry
100Species

Conditions Summary

Model forecast · local time (GMT-10)

Model conditions signal81/100
Waves
1.3 m
8.6 s
Swell
0.8 m
11.1 s
Current speed
0.7 km/h
flowing toward W
Water temperature
26.6°C
Wind
17.9 km/h
→ NE
Sea level
0.7 m
rising
WavesChallenging
SwellCalm
Current speedCalm

Forecast Overview

Sun, Oct 18Challenging
Waves1.3–1.4 mCurrent speed1.3 km/h maxWater temperature26.6°C
TodayChallenging
Waves1.3–1.4 mCurrent speed1.1 km/h maxWater temperature26.6°C
TomorrowChallenging
Waves1.3–1.4 mCurrent speed1.1 km/h maxWater temperature26.5°C
Wed, Oct 21Challenging
Waves1.2–1.3 mCurrent speed1.0 km/h maxWater temperature26.5°C
Next 72 hours
06:00
Waves: 1.3 m
Current speed: 0.7 km/h
Water temperature: 26.6°C
12:00
Waves: 1.3 m
Current speed: 1.0 km/h
Water temperature: 26.7°C
18:00
Waves: 1.4 m
Current speed: 1.1 km/h
Water temperature: 26.6°C
00:00
Waves: 1.4 m
Current speed: 1.1 km/h
Water temperature: 26.5°C
06:00
Waves: 1.3 m
Current speed: 0.6 km/h
Water temperature: 26.5°C
12:00
Waves: 1.4 m
Current speed: 0.9 km/h
Water temperature: 26.6°C
18:00
Waves: 1.3 m
Current speed: 0.7 km/h
Water temperature: 26.6°C
00:00
Waves: 1.4 m
Current speed: 1.1 km/h
Water temperature: 26.5°C
06:00
Waves: 1.3 m
Current speed: 0.8 km/h
Water temperature: 26.5°C
12:00
Waves: 1.4 m
Current speed: 0.7 km/h
Water temperature: 26.6°C
18:00
Waves: 1.3 m
Current speed: 1.0 km/h
Water temperature: 26.5°C
00:00
Waves: 1.3 m
Current speed: 0.9 km/h
Water temperature: 26.5°C
Catalog depth10–3 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

Year-round

Peak month

Sep 26.8°

Jan24.4°
Feb24.0°
Mar24.0°
Apr24.4°
May25.0°
Jun25.7°
Jul26.0°
Aug26.5°
Sep26.8°
Oct26.7°
Nov26.0°
Dec25.1°
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.

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Dive Types

ReefreefSalt 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
Sacoglossan
Plakobranchus ocellatus
DeepLog23
Spotted boxfish
Ostracion meleagris
DeepLog6
Brown surgeonfish
Acanthurus nigrofuscus
DeepLog4
Conspicuous sea cucumber
Opheodesoma spectabilis
DeepLog4
Forcepsfish
Forcipiger flavissimus
DeepLog4
Savigny's long-spine sea urchin
Diadema savignyi
DeepLog4
Hawaiian dascyllus
Dascyllus albisella
DeepLog3
Oval chromis
Chromis ovalis
DeepLog3
Yellow tang
Zebrasoma flavescens
DeepLog3
Bird wrasse
Gomphosus varius
DeepLog2
Common parrotfish
Scarus psittacus
DeepLog2
Gold lace nudibranch
Halgerda terramtuentis
DeepLog2
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Horseshoe Reef photo 2
Horseshoe Reef photo 3
Horseshoe Reef photo 4
Horseshoe Reef photo 5
Horseshoe Reef photo 6
Horseshoe Reef photo 7
Horseshoe Reef photo 8
Horseshoe Reef photo 9
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