Seychelles

Roche Grand Maman

15–30 mMax Depth

boatEntry

74Species

Conditions Summary

Model forecast · local time (GMT+4)

Model conditions signal71/100

Waves

1.6 m

6.4 s

Swell

1.0 m

5.5 s

Current speed

1.4 km/h

flowing toward SE

Water temperature

28.8°C

Wind

25.2 km/h

→ N

Sea level

0.3 m

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

TodayChallenging

Waves1.5–1.6 mCurrent speed1.5 km/h maxWater temperature29.0°C

TomorrowChallenging

Waves1.1–1.4 mCurrent speed1.0 km/h maxWater temperature29.1°C

Fri, Oct 23Watch

Waves0.9–1.1 mCurrent speed1.2 km/h maxWater temperature29.3°C

Sat, Oct 24Watch

Waves0.9–0.9 mCurrent speed1.0 km/h maxWater temperature29.3°C

Next 72 hours

06:00

Waves: 1.6 m

Current speed: 1.4 km/h

Water temperature: 28.8°C

12:00

Waves: 1.5 m

Current speed: 1.5 km/h

Water temperature: 28.9°C

18:00

Waves: 1.5 m

Current speed: 1.4 km/h

Water temperature: 29.1°C

00:00

Waves: 1.4 m

Current speed: 0.9 km/h

Water temperature: 29.0°C

06:00

Waves: 1.3 m

Current speed: 0.9 km/h

Water temperature: 29.0°C

12:00

Waves: 1.2 m

Current speed: 0.8 km/h

Water temperature: 29.1°C

18:00

Waves: 1.1 m

Current speed: 0.5 km/h

Water temperature: 29.4°C

00:00

Waves: 1.1 m

Current speed: 0.0 km/h

Water temperature: 29.2°C

06:00

Waves: 1.0 m

Current speed: 0.3 km/h

Water temperature: 29.1°C

12:00

Waves: 1.0 m

Current speed: 0.6 km/h

Water temperature: 29.4°C

18:00

Waves: 0.9 m

Current speed: 1.0 km/h

Water temperature: 29.6°C

00:00

Waves: 0.9 m

Current speed: 0.9 km/h

Water temperature: 29.3°C

Catalog depth15–30 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

Apr-Oct

Peak month

Apr 29.9°

Jan28.3°

Feb28.7°

Mar29.4°

Apr29.9°

May29.2°

Jun27.5°

Jul26.4°

Aug26.3°

Sep27.2°

Oct27.9°

Nov28.3°

Dec28.3°

Current: moderate

Typical visibility: 20 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

Lined surgeonfish

Acanthurus lineatus

DeepLog10

Powderblue surgeonfish

Acanthurus leucosternon

DeepLog7

Filament blenny

Alticus monochrus

DeepLog5

Goldbar wrasse

Thalassoma hebraicum

DeepLog5

Longfin batfish

Platax teira

DeepLog5

Scissortail sergeant

Abudefduf sexfasciatus

DeepLog5

Blackspot sergeant

Abudefduf sordidus

DeepLog4

Indian mackerel

Rastrelliger kanagurta

DeepLog4

Threadfin butterflyfish

Chaetodon auriga

DeepLog4

Thumbprint emperor

Lethrinus harak

DeepLog4

Bluespotted cornetfish

Fistularia commersonii

DeepLog3

Red-fin butterflyfish

Chaetodon trifasciatus

DeepLog3

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

DeepLog + OBIS →

Photos