Ko Ngam Yai เกาะง่ามใหญ่ - Gulf of Thailand

Ko Ngam Yai, a consistent choice in the Gulf, offers a relaxed dive, usually maxing out around 14 meters. It's a prime spot for newer divers, with calm conditions and plenty of little nooks to poke around. We often spot schools of fusiliers here, swirling around the rock formations, and there's a good chance of finding some moray eels tucked into crevices. While it won't blow your mind with massive pelagics, Ko Ngam Yai is a dependable, pleasant dive, perfect for a chilled-out afternoon beneath the waves.

Location
Gulf of Thailand, Thailand, Southeast Asia
Coordinates
10.495500, 99.422300
Maximum Depth
14m
Difficulty
Beginner

Marine Protected Area: Mu ko Chumphon

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)

Nearby Dive Sites in Gulf of Thailand

Nearest Dive Centres to Ko Ngam Yai เกาะง่ามใหญ่

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.

Notable Species

Recommended Packing List for Ko Ngam Yai เกาะง่ามใหญ่

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