When is the best time to dive Shark Island (Koh Tao)?

The typical diving season is January to December; March to May; October to November. Conditions vary year to year, so confirm locally before booking.

Thailand · Koh Tao

Shark Island (Koh Tao)

Q: Is Shark Island (Koh Tao) good for snorkelling?

Yes - snorkelling is viable here. Possible around the shallower fringing reef when conditions permit, but current exposure makes it less ideal than Nang Yuan/Japanese Gardens for casual snorkelers

Best time to dive

January to December; March to May; October to November

What you might see

BarracudaLikely
Grey reef sharkPeak season
NudibranchLikely
Sea turtlePeak season
Whale sharkPeak season

Sightings are seasonal probabilities, not promises - even in peak season nature does its own thing.

Certification & difficulty

Advanced Open Water - advanced conditions (currents/depth); dive within your training.

Snorkelling

Snorkel-friendly - Possible around the shallower fringing reef when conditions permit, but current exposure makes it less ideal than Nang Yuan/Japanese Gardens for casual snorkelers

Safety notes

Stronger/variable currents than sheltered sites, territorial titan triggerfish near nesting season, depth combined with current for less experienced divers

Permits & fees

No National Marine Park fee; only Koh Tao's general 20 THB visitor fee

Permits and operators change - confirm before booking.

Location

Nearest hub: Koh Tao (Chalok Baan Kao)

This profile is desk research, compiled from public sources - not a first-hand dive report. Coordinates are approximate.