Jack Fish

Mnemba Island, Zanzibar, Tanzaniawall50 m maxtechnical

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Conditions & tides

Satellite view of Jack Fish

Jack FishMnemba Island · 50 m

Fair · 4/5

© Esri

conditions visualisation

Fair4/5

Some chop right now — best window today 9 AM–7 PM.

Wind9 kn SE

Current~0.3 kn NW · model

Swell

1.0 m · 6s · ESE

Water

27 °C

Conditions through the day

8 AM8 PM

Calmest current near slack — 09:00 AM & 09:15 PM local

Sunrise 06:10 AM · Sunset 06:17 PM local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.8 m — the component of the swell aimed at this site’s exposed face. Current is a regional model value (Copernicus, ~9 km grid) — a guide to the area, not a precise reef measurement. Imagery © Esri · not depth or visibility.

Scored by DiveConnect's site-physics model

Marine forecast via Copernicus Marine. Score is a rule-based guide from swell/wind vs. the site's exposure — always dive your own assessment.

Dived here today? How were conditions vs. what we showed?

About this site

Mnemba Island sits off the northeastern coast of Zanzibar, near the town of Nungwi, ringed by a marine conservation area popular for its coral formations. Jack Fish is a wall site here, reached by boat from the nearby coast, dropping to a maximum depth of around 50 metres with strong current, and it is rated technical. Eagle rays, grouper, and snapper are regular sights along the wall, and divers have also reported barracuda, batfish, jacks, lobster, Napoleon wrasse, reef sharks, and stingrays.

AI overview

Marine life here

Confirmed by our research team, reported by independent divers, or observed nearby via iNaturalist — each entry is labelled with its source.

Napoleon (humphead) wrasseNapoleon (humphead) wrasseReported here · unconfirmed
GrouperGrouperConfirmed present · 2 independent sources
LobsterLobsterReported here · unconfirmed
Reef sharkReef sharkReported here · unconfirmed
Jack / amberjackJack / amberjackReported here · unconfirmed
StingrayStingrayReported here · unconfirmed
Skunk AnemonefishAmphiprion akallopisosReported here · unconfirmed
Spinner DolphinStenella longirostrisReported here · unconfirmed
Three-spot DascyllusDascyllus trimaculatusReported here · unconfirmed
Pacific TrumpetfishAulostomus chinensisReported here · unconfirmed
Guineafowl PufferArothron meleagrisReported here · unconfirmed
Geometric MorayGymnothorax griseusReported here · unconfirmed
Indo-Pacific Sergeant MajorAbudefduf vaigiensisReported here · unconfirmed
Blacklip ButterflyfishChaetodon kleiniiReported here · unconfirmed
Moorish IdolZanclus cornutusReported here · unconfirmed
Allard's AnemonefishAmphiprion allardiReported here · unconfirmed
SnapperSnapperConfirmed present · 2 independent sources
Eagle rayEagle rayConfirmed present · 2 independent sources
BarracudaBarracudaReported here · unconfirmed
BatfishBatfishReported here · unconfirmed

Diver notes

Durable tips from divers — access, hazards, marine life, facilities. For day-of conditions, use the report tool in the conditions card above.

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Nearby dive sites

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