Koh Ngam Yai - Gulf of Thailand

Koh Ngam Yai offers a straightforward dive, well-suited for beginners or those looking for a relaxed day in the water. We typically see various reef fish darting around the scattered coral bommies. Visibility here can vary, but on a good day, it’s a pleasant spot for a casual dive in the Gulf. It's not a site that will blow your mind, but it’s a solid option for logging some bottom time.

Location
Gulf of Thailand, Thailand, Southeast Asia
Coordinates
10.502033, 99.423400

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 Koh Ngam Yai

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 Koh Ngam Yai

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