Diving in Gulf of Thailand

Best Time to Dive in Gulf of Thailand

The warmest water temperatures in Gulf of Thailand occur in January, averaging 28.2°C. The coolest conditions are in December at 28.2°C.

Monthly Water Temperatures

• January: 28.2°C (air: 26.9°C)
• February: 28.2°C (air: 27.3°C)
• March: 28.2°C (air: 28.2°C)
• April: 28.2°C (air: 29.1°C)
• May: 28.2°C (air: 29.1°C)
• June: 28.2°C (air: 28.6°C)
• July: 28.2°C (air: 28.1°C)
• August: 28.2°C (air: 28.2°C)
• September: 28.2°C (air: 27.6°C)
• October: 28.2°C (air: 27.2°C)
• November: 28.2°C (air: 27.0°C)
• December: 28.2°C (air: 26.8°C)

Marine Life in Gulf of Thailand

Home to 167 recorded species including 126 reef fish, 18 hard corals, 7 sharks & rays, 6 seagrass & algae, 2 sea cucumbers, 2 clams & mussels.

Dive Site Difficulty in Gulf of Thailand

Gulf of Thailand has 48 beginner, 3 intermediate dive sites - suitable for divers of all levels.

Recommended Packing List for Gulf of Thailand

Based on average water temperature of 28.2°C.

• Shorty or Rashguard - warm 28°C water needs minimal exposure protection
• Mask - essential for every dive
• Fins
• BCD - buoyancy compensator
• Regulator - your most safety-critical piece of gear
• Dive Computer - tracks depth, time, and NDL
• Surface Marker Buoy (SMB) - essential for boat pickups
• Dive Torch - useful for crevices and colour at depth
• Underwater Camera - capture your diving memories

Marine Protected Areas in Gulf of Thailand

• Muko Ang Thong - Marine National Park (IUCN Category II)
• Laem Son - Marine National Park (IUCN Category II)
• Hat Wanakon - Marine National Park (IUCN Category II)
• Biosphere Reserves Ranong Thailand - UNESCO-MAB Biosphere Reserve (IUCN Category Not Applicable)
• Mu ko Chumphon - Marine National Park (IUCN Category II)
• Lam Nam Kra Buri - Marine National Park (IUCN Category II)
• Kaper Estuary - Laemson Marine National Park - Kraburi Estuary - Wetland of International Importance (Ramsar Site) (IUCN Category VI)
• Mu Ko Ang Thong Marine National Park - Wetland of International Importance (Ramsar Site) (IUCN Category VI)
• Suratthani Environmental Protected Area - Environmental Protected Area (IUCN Category VI)
• Mu ko Ranong - Marine National Park (IUCN Category II)
• Ko Phayam Marine and Coastal Resources Protected Area - Marine and Coastal Resources Protected Area (IUCN Category VI)

Getting to Gulf of Thailand - Nearest Airports

• Samui International Airport (USM), Na Thon (Ko Samui Island) - 73 km away, approx 94 min travel time
• Krabi International Airport (KBV), Krabi - 240 km away, approx 276 min travel time
• Phuket International Airport (HKT), Phuket - 272 km away, approx 312 min travel time