Diving in Trincomalee & East Coast

Explore 40 dive sites in Trincomalee & East Coast, Sri Lanka. Ocean conditions, marine species, and dive centres.

Best Time to Dive in Trincomalee & East Coast

The warmest water temperatures in Trincomalee & East Coast occur in January, averaging 27.4°C. The coolest conditions are in December at 27.4°C.

Monthly Water Temperatures

  • January: 27.4°C (air: 25.8°C)
  • February: 27.4°C (air: 26.3°C)
  • March: 27.4°C (air: 27.3°C)
  • April: 27.4°C (air: 28.2°C)
  • May: 27.4°C (air: 28.9°C)
  • June: 27.4°C (air: 29.6°C)
  • July: 27.4°C (air: 29.4°C)
  • August: 27.4°C (air: 28.9°C)
  • September: 27.4°C (air: 28.7°C)
  • October: 27.4°C (air: 27.2°C)
  • November: 27.4°C (air: 26.0°C)
  • December: 27.4°C (air: 25.9°C)

Marine Life in Trincomalee & East Coast

Home to 259 recorded species including 205 reef fish, 16 hard corals, 14 sea snails & nudibranchs, 7 sharks & rays, 6 seagrass & algae, 5 whales & dolphins.

Dive Site Difficulty in Trincomalee & East Coast

Trincomalee & East Coast has 3 beginner, 1 intermediate, 1 expert dive sites - suitable for divers of all levels.

Recommended Packing List for Trincomalee & East Coast

Based on average water temperature of 27.4°C.

  • Shorty or Rashguard - warm 27°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 Trincomalee & East Coast

  • Kokkilai - Sanctuary (IUCN Category IV)
  • Bar Reef Marine Sanctuary - Sanctuary (IUCN Category IV)
  • Little Sober Island - Sanctuary (IUCN Category IV)
  • Chundikulam NP - National Park (IUCN Category IV)
  • Kayankerny MSAN - Sanctuary (IUCN Category IV)
  • Nayaru NR - Nature Reserve (IUCN Category Ib)
  • Paravi Dupatha National Park - National Park (IUCN Category II)
  • Vankalai - Sanctuary (IUCN Category IV)
  • WedithalathiveNR - Nature Reserve (IUCN Category Ib)

Getting to Trincomalee & East Coast - Nearest Airports

  • China Bay Airport (TRR), Trincomalee - 33 km away, approx 51 min travel time
  • Bandaranaike International Colombo Airport (CMB), Colombo - 200 km away, approx 234 min travel time
  • Jaffna International Airport (JAF), Jaffna - 217 km away, approx 252 min travel time

Dive Sites

Dive Centres