Tanzania

Mnemba Atoll

5–30 mMax Depth

boatEntry

2Species

Conditions Summary

Model forecast · local time (GMT+3)

Model conditions signal71/100

Waves

1.2 m

8.2 s

Swell

1.1 m

7.0 s

Current speed

0.8 km/h

flowing toward NW

Water temperature

27.0°C

Wind

13.1 km/h

→ SE

Sea level

0.9 m

falling

WavesChallenging

SwellWatch

Current speedCalm

Forecast Overview

Mon, Oct 19Challenging

Waves1.1–1.2 mCurrent speed1.4 km/h maxWater temperature27.2°C

Tue, Oct 20Challenging

Waves1.1–1.2 mCurrent speed1.4 km/h maxWater temperature27.2°C

TodayWatch

Waves1.0–1.1 mCurrent speed1.3 km/h maxWater temperature27.3°C

TomorrowWatch

Waves0.9–1.0 mCurrent speed1.2 km/h maxWater temperature27.2°C

Next 72 hours

09:00

Waves: 1.2 m

Current speed: 0.8 km/h

Water temperature: 27.0°C

15:00

Waves: 1.1 m

Current speed: 1.3 km/h

Water temperature: 27.4°C

21:00

Waves: 1.1 m

Current speed: 1.3 km/h

Water temperature: 27.2°C

03:00

Waves: 1.1 m

Current speed: 0.9 km/h

Water temperature: 27.1°C

09:00

Waves: 1.1 m

Current speed: 0.9 km/h

Water temperature: 27.1°C

15:00

Waves: 1.2 m

Current speed: 1.4 km/h

Water temperature: 27.5°C

21:00

Waves: 1.2 m

Current speed: 1.2 km/h

Water temperature: 27.2°C

03:00

Waves: 1.1 m

Current speed: 0.6 km/h

Water temperature: 27.1°C

09:00

Waves: 1.0 m

Current speed: 0.8 km/h

Water temperature: 27.1°C

15:00

Waves: 1.0 m

Current speed: 1.3 km/h

Water temperature: 27.6°C

21:00

Waves: 1.0 m

Current speed: 1.3 km/h

Water temperature: 27.3°C

03:00

Waves: 0.9 m

Current speed: 0.8 km/h

Water temperature: 27.2°C

Catalog depth5–30 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

Not available

Peak month

Mar 29.2°

Jan28.2°

Feb28.5°

Mar29.2°

Apr28.9°

May28.0°

Jun26.9°

Jul25.9°

Aug25.5°

Sep25.8°

Oct26.6°

Nov27.7°

Dec28.4°

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.

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Dive Types

reefsalt 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

Atlantic green turtle

Chelonia mydas

DeepLog1

Powderblue surgeonfish

Acanthurus leucosternon

DeepLog1

Theristus

Nearby OBIS observations8

Acanthonchus

Nearby OBIS observations6

Chromadora

Nearby OBIS observations6

Euchromadora

Nearby OBIS observations6

Paracanthonchus

Nearby OBIS observations6

Actinonema

Nearby OBIS observations5

Daptonema

Nearby OBIS observations5

Innocuonema

Nearby OBIS observations5

Metadesmolaimus

Nearby OBIS observations5

Neochromadora

Nearby OBIS observations5

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

DeepLog + OBIS →

Photos