Mango Bay

Surat Thani, Koh Tao, Southern Thailand, Thailandreef5 m maxbeginner

Conditions & tides

Mango BayKoh Tao

Good · 5/5

conditions visualisation

Good5/5

Calm and diveable right now — best window today 7 AM–5 PM.

Wind13 kn E

Current~0.4 kn ESE · model

Swell

0.3 m · 3s · ESE

Water

30 °C

Max depth

5 m

Conditions through the day

6 AM6 PM

Calmest current near slack — 19:45 local

Sunrise 06:13 · Sunset 17:56 local

Show details

Tide · local

Outlook — select a day for full conditions

On-face swell 0.0 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

Mango Bay (Aow Moung) sits at the northern point of Koh Tao and is one of the shallower dive sites on the island, ranging from 6 to 12 metres depth. The bay is sheltered and protected, with large areas of hard coral — including staghorn coral — forming the primary terrain. Along the eastern side of the bay, the coastline reef gives way to a drop-off with swim-throughs and overhangs, making for varied diving within a compact, calm site.

The reef holds a wide variety of marine life. Juvenile fish hide among the staghorn coral, while the eastern coastline is a good place to encounter large schools of fusiliers and yellowtail barracudas. Turtles appear occasionally, and large whip rays can be found sheltering beneath the overhangs. Butterfly fish and angelfish are present among the coral, and the site also offers the possibility of spotting pygmy seahorses, frogfish, bamboo sharks, jacks, Jenkins rays, and soles.

Mango Bay is a boat dive accessed from Koh Tao, and its protected, sheltered conditions make it well suited to beginners and Discover Scuba Diving (DSD) participants. Current is light, visibility is good, and the site's calm, shallow character also makes it a popular snorkelling destination. The bay is considered one of the better introductory reef dives on Koh Tao.

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