Koh Mae Urai/ เกาะแม่อุไร - Similan Islands

Koh Mae Urai, often overlooked for its flashier neighbours, offers a gentle dive perfect for newer divers or those looking for a relaxed second tank. The reef slopes down to a modest 15 meters, making it easy to manage your air and bottom time. We usually find groups of yellowback fusiliers here, often accompanied by the resident blue-spotted stingrays resting on the sand patches. It’s a site that rewards a slow pace, letting you really observe the smaller stuff, like the cleaner shrimp stations and the occasional camouflaged scorpionfish.

Location
Similan Islands, Thailand, Southeast Asia
Coordinates
7.955600, 98.789600
Maximum Depth
15m
Difficulty
Beginner

Marine Protected Area: Hat Noppharat Thara-Mu ko Phi Phi

Best Time to Dive in Similan Islands

The warmest water temperatures in Similan Islands occur in May, averaging 30.8°C. The coolest conditions are in January at 28.6°C.

Monthly Water Temperatures

  • January: 28.6°C
  • February: 29.0°C
  • March: 29.6°C
  • April: 30.6°C
  • May: 30.8°C
  • June: 29.9°C
  • July: 29.6°C
  • August: 29.3°C
  • September: 29.0°C
  • October: 29.0°C
  • November: 29.2°C
  • December: 28.7°C

Nearby Dive Sites in Similan Islands

Nearest Dive Centres to Koh Mae Urai/ เกาะแม่อุไร

Marine Life in Similan Islands

Home to 183 recorded species including 127 reef fish, 38 hard corals, 9 seagrass & algae, 4 sharks & rays, 2 other, 1 octopus & squid.

Notable Species

Recommended Packing List for Koh Mae Urai/ เกาะแม่อุไร

Based on average water temperature of 29.4°C, currents 7 cm/s.

  • Shorty or Rashguard - warm 29°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