Sister Rocks

Grenada

Sister Rocks

8–30 mMax Depth
boatEntry
3Species

Conditions Summary

Model forecast · local time (GMT-4)

Model conditions signal91/100
Waves
0.9 m
5.7 s
Swell
0.7 m
4.6 s
Current speed
1.5 km/h
flowing toward W
Water temperature
29.4°C
Wind
23.1 km/h
→ E
Sea level
0.3 m
falling
WavesWatch
SwellCalm
Current speedCalm

Forecast Overview

Sun, Oct 18Watch
Waves0.9–0.9 mCurrent speed1.9 km/h maxWater temperature29.3°C
Mon, Oct 19Challenging
Waves0.9–1.2 mCurrent speed2.6 km/h maxWater temperature29.3°C
Tue, Oct 20Watch
Waves0.9–1.0 mCurrent speed2.7 km/h maxWater temperature29.4°C
TodayWatch
Waves0.8–0.9 mCurrent speed2.8 km/h maxWater temperature29.4°C
Next 72 hours
20:00
Waves: 0.9 m
Current speed: 1.5 km/h
Water temperature: 29.4°C
02:00
Waves: 0.9 m
Current speed: 1.8 km/h
Water temperature: 29.2°C
08:00
Waves: 1.0 m
Current speed: 1.5 km/h
Water temperature: 29.2°C
14:00
Waves: 1.1 m
Current speed: 2.4 km/h
Water temperature: 29.4°C
20:00
Waves: 1.0 m
Current speed: 1.4 km/h
Water temperature: 29.4°C
02:00
Waves: 1.0 m
Current speed: 2.4 km/h
Water temperature: 29.3°C
08:00
Waves: 0.9 m
Current speed: 1.0 km/h
Water temperature: 29.2°C
14:00
Waves: 0.9 m
Current speed: 2.7 km/h
Water temperature: 29.5°C
20:00
Waves: 0.9 m
Current speed: 0.9 km/h
Water temperature: 29.4°C
02:00
Waves: 0.9 m
Current speed: 2.4 km/h
Water temperature: 29.3°C
08:00
Waves: 0.9 m
Current speed: 0.8 km/h
Water temperature: 29.3°C
14:00
Waves: 0.8 m
Current speed: 2.8 km/h
Water temperature: 29.6°C
Catalog depth8–30 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

Jan-May

Peak month

Sep 29.2°

Jan27.0°
Feb26.8°
Mar26.8°
Apr27.2°
May27.7°
Jun27.7°
Jul28.0°
Aug28.7°
Sep29.2°
Oct29.0°
Nov28.4°
Dec27.8°
Current: moderate
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

reefpinnaclesalt 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
Elkhorn coral
Acropora palmata
DeepLog1
Nassau grouper
Epinephelus striatus
DeepLog1
Smooth flower coral
Eusmilia fastigiata
DeepLog1
Myrichthys breviceps
Nearby OBIS observations6
Holocentrus rufus
Nearby OBIS observations5
Thalassia testudinum
Nearby OBIS observations5
Thalassoma bifasciatum
Nearby OBIS observations5
Dactyloscopus tridigitatus
Nearby OBIS observations4
Epinephelus adscensionis
Nearby OBIS observations4
Gobioclinus bucciferus
Nearby OBIS observations4
Microspathodon chrysurus
Nearby OBIS observations4
Myripristis jacobus
Nearby OBIS observations4
These are nearby biodiversity records, not a guarantee that every species will be seen on a particular dive.
DeepLog + OBIS →

Photos

Sister Rocks photo 2
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