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Aerial view of a pass into Chuuk Lagoon

Chuuk (Truk) Lagoon

Diving in Micronesia

11 documented dive sites. Known for grey reef sharks, reef sharks and silvertip sharks.

Best months
Oct–Apr
Water
27–30 °C
Levels
Advanced, Experienced, Technical
Diving from
Liveaboards, Dive resorts
Nearest airport
TKK

Photo: Flickr user Matt Kieffer, CC BY-SA 2.0, via Wikimedia Commons

When to go

Pick a month: the diving season, from published sources, and the typical weather.

Pick a month

  • Best
  • Good
  • Possible
  • Closed
  • Not documented yet

Chuuk (Truk) Lagoon in October

Best season
Sea
30 °C
at the surface
Air
29 °C
26 °C at night
Rain
430 mm
one of the wettest months
Wind
15 km/h
on average

The warmest water of the year.

Typical weather, not a forecast: averages for 2021–2025 (air, rain, wind) and 2023–2025 (sea), data from Open-Meteo (ERA5 / Copernicus, Météo-France). Covers an area of roughly 10 to 25 km around the destination.

Year-round; main liveaboard season Oct–Apr (NE trade winds). Visibility 10–30 m.

Source: zubludiving.com

Dive sites in Chuuk (Truk) Lagoon

From the easiest to the most demanding. Levels with a dashed outline are estimates we are still verifying.

Mostly suited to advanced divers: wrecks from 10 to 50+ m, penetration needs wreck training.

For Advanced divers

usual dive down to 30 m6 sites

For experienced divers

usual dive down to 40 m1 site

Technical and specialty dives

4 sites

Marine life

When the big encounters happen, month by month.

SpeciesJanFebMarAprMayJunJulAugSepOctNovDec
Reef sharksSource: zubludiving.com
TurtlesSource: zubludiving.com
  • Peak season
  • Seen

Reef sharks: All year. Turtles: All year

Also reported here, season not documented yet:

  • Grey reef sharks
  • Silvertip sharks
  • Whitetip reef sharks
  • Dolphins
  • Eagle rays
  • Barracuda
  • Trevally
  • Batfish
  • Corals
  • Jellyfish
  • Manta rays
  • Bull sharks
  • Hammerhead sharks
  • Leopard (zebra) sharks
  • Oceanic whitetip sharks
  • Tiger sharks
  • Stingrays

Where is Chuuk (Truk) Lagoon?

View on OpenStreetMapLocation: Chuuk Lagoon (Wikipedia)Map: Natural Earth
Nearest airport
TKK
How people dive here
Liveaboards, Dive resorts

Chuuk (Truk) Lagoon: frequently asked questions

When is the best time to dive Chuuk (Truk) Lagoon?
The best months to dive Chuuk (Truk) Lagoon are Oct–Apr. Year-round; main liveaboard season Oct–Apr (NE trade winds). Visibility 10–30 m.
Is Chuuk (Truk) Lagoon good for beginner divers?
Not really: none of the 11 dive sites we document is rated for Open Water divers. Plan an Advanced certification and some experience first.
What is the water temperature in Chuuk (Truk) Lagoon?
The water is usually between 27 °C and 30 °C over the year.
What marine life can you see in Chuuk (Truk) Lagoon?
Divers regularly see grey reef sharks, reef sharks (all year), silvertip sharks, whitetip reef sharks, dolphins and turtles (all year).
How do you dive Chuuk (Truk) Lagoon?
The nearest airport is TKK. Ways to dive here: liveaboards and dive resorts.

About this page

Seasons and marine life come from the sources below. Site levels and depths marked as estimated come from our original catalogue and are being checked one by one. Conditions change: always confirm with a local dive centre.

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Photo: Sarah Lee on Unsplash
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