Respect the season. In May to October, expect more swell and last-minute changes. Do not pressure operators to run in unsafe conditions.
Currents can build quickly on pinnacles and points. Stay close to your guide, keep good buoyancy, and avoid separation.
Use an SMB on ascent. Boat traffic is common on popular routes.
Keep profiles conservative if you are doing repetitive days, especially when adding deeper wreck dives.

Phuket has dedicated diving medicine support. Bangkok Hospital Phuket lists a Diving Medicine Center with Hyperbaric Oxygen Therapy (HBOT) services and a 24 hour on-call diving physician. Save the contact details before your trip and make sure your insurance covers diving incidents and evacuation if needed.

May to October can bring larger swell and rougher crossings. Expect cancellations and avoid overcommitting to offshore itineraries without buffer days.

Respect the season. In May to October, expect more swell and last-minute changes. Do not pressure operators to run in unsafe conditions.
Currents can build quickly on pinnacles and points. Stay close to your guide, keep good buoyancy, and avoid separation.
Use an SMB on ascent. Boat traffic is common on popular routes.
Keep profiles conservative if you are doing repetitive days, especially when adding deeper wreck dives.

May to October can bring larger swell and rougher crossings. Expect cancellations and avoid overcommitting to offshore itineraries without buffer days.

Popular bays and island routes have heavy longtail and speedboat traffic. Use an SMB (divers) or a bright snorkel vest and stay inside swim zones when present.

Shark Point area and exposed points at Racha Noi can run as drifts. Stay close to the guide, keep good spacing, and be ready for negative entries if briefed.

Phuket is hot and humid year-round. Dehydration increases fatigue and can contribute to dive risk. Carry water, limit alcohol between dive days, and sleep enough.

Follow marine-park rules and respect seasonal closures, especially for offshore parks like Similan.
Do not touch or stand on coral, and keep fins and gauges secured.
Never feed fish or chase turtles or sharks for photos. Let wildlife set the distance.
Choose operators that use moorings rather than anchoring on reefs, brief responsible behavior, and manage group size.
Reduce waste: carry a reusable bottle and refuse single-use plastics where possible.

Contact	Role	Phone	Availability
Tourist Police	Tourist assistance hotline	1155	24/7
Thailand Emergency (Police)	General emergency and police	191	24/7
Medical Emergency Call Center	Ambulance and medical emergencies	1669	24/7
Fire Emergency	Fire services	199	24/7
Water Emergency	Water and marine emergencies	1196	24/7
Immigration Bureau Hotline	Immigration information	1178	Business hours (varies)
Bangkok Hospital Phuket Diving Medicine Center	Diving medicine and hyperbaric oxygen therapy	+66 7625 4425	Clinic hours with 24 hour on-call diving physician

Phuket

Safety And Conservation

Top Risks

Dive safety

Snorkel and freedive safety

Safety And Conservation

Top Risks

Dive safety

Snorkel and freedive safety

Wildlife and protected areas

Emergency contacts