Coral Grotto

United States

Coral Grotto

20–40 mMax Depth
boatEntry
51Species

Conditions Summary

Model forecast · local time (GMT-10)

Model conditions signal71/100
Waves
2.3 m
7.8 s
Swell
1.1 m
8.9 s
Current speed
0.4 km/h
flowing toward NW
Water temperature
26.6°C
Wind
18.0 km/h
→ E
Sea level
0.5 m
falling
WavesChallenging
SwellWatch
Current speedCalm

Forecast Overview

Sun, Oct 18Challenging
Waves2.3–2.3 mCurrent speed0.5 km/h maxWater temperature26.5°C
Mon, Oct 19Challenging
Waves2.3–2.3 mCurrent speed0.7 km/h maxWater temperature26.4°C
Tue, Oct 20Challenging
Waves2.0–2.3 mCurrent speed0.5 km/h maxWater temperature26.4°C
TodayChallenging
Waves1.6–2.0 mCurrent speed0.9 km/h maxWater temperature26.3°C
Next 72 hours
16:00
Waves: 2.3 m
Current speed: 0.4 km/h
Water temperature: 26.6°C
22:00
Waves: 2.3 m
Current speed: 0.5 km/h
Water temperature: 26.5°C
04:00
Waves: 2.3 m
Current speed: 0.5 km/h
Water temperature: 26.5°C
10:00
Waves: 2.3 m
Current speed: 0.4 km/h
Water temperature: 26.4°C
16:00
Waves: 2.3 m
Current speed: 0.2 km/h
Water temperature: 26.5°C
22:00
Waves: 2.3 m
Current speed: 0.5 km/h
Water temperature: 26.4°C
04:00
Waves: 2.3 m
Current speed: 0.2 km/h
Water temperature: 26.4°C
10:00
Waves: 2.1 m
Current speed: 0.2 km/h
Water temperature: 26.4°C
16:00
Waves: 2.0 m
Current speed: 0.4 km/h
Water temperature: 26.5°C
22:00
Waves: 2.0 m
Current speed: 0.2 km/h
Water temperature: 26.4°C
04:00
Waves: 1.9 m
Current speed: 0.2 km/h
Water temperature: 26.3°C
10:00
Waves: 1.8 m
Current speed: 0.0 km/h
Water temperature: 26.3°C
Catalog depth20–40 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

May-Sep

Peak month

Sep 26.6°

Jan23.9°
Feb23.5°
Mar23.5°
Apr24.0°
May24.8°
Jun25.5°
Jul25.9°
Aug26.3°
Sep26.6°
Oct26.5°
Nov25.7°
Dec24.8°
Current: mild
Typical visibility: 30 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

cavereefsalt 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
Neonbanded butterflyfish
Chaetodon quadrimaculatus
DeepLog5
Holothuroids
Actinopyga varians
DeepLog4
Saddle wrasse
Thalassoma duperrey
DeepLog4
Yellowstripe goatfish
Mulloidichthys flavolineatus
DeepLog4
Hawaiian dascyllus
Dascyllus albisella
DeepLog3
Reef triggerfish
Rhinecanthus rectangulus
DeepLog3
Twosaddle goatfish
Parupeneus insularis
DeepLog3
Black foot ‘opihi
Cellana exarata
DeepLog2
Brown surgeonfish
Acanthurus nigrofuscus
DeepLog2
Cleaner wrasse
Labroides phthirophagus
DeepLog2
Orangespine unicornfish
Naso lituratus
DeepLog2
Orangespot surgeonfish
Acanthurus olivaceus
DeepLog2
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Coral Grotto photo 2
Coral Grotto photo 3
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