Koh Nang Yuan - Gulf of Thailand

Koh Nang Yuan, just a stone's throw from Koh Tao, is a good spot for a relaxed dive. The main draw for us is the collection of smaller sites around the island, like Green Rock with its interesting boulder formations and swim-throughs that start shallow and drop to around 30 metres. You'll find plenty of reef fish flitting about, especially in the shallower sections. It's a busy place, popular with snorkelers too, but for easy diving and an afternoon exploring some gentle coral and sandy patches, it fits the bill nicely. This area is ideal for newer divers or those looking for a laid-back afternoon underwater without strong currents.

Location
Gulf of Thailand, Thailand, Southeast Asia
Coordinates
10.100000, 99.820000

Marine Protected Area: Suratthani Environmental Protected Area

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 Nang Yuan

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 Nang Yuan

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