The Climate and Best Time to Visit
Truk Lagoon offers a compelling liveaboard diving experience year-round, but understanding its seasonal patterns will help you select the optimal time for your expedition. Located near the equator in Micronesia, the region enjoys a consistently warm tropical climate, with air and water temperatures typically ranging from 27 to 30°C (80 to 86°F) throughout the year. The primary variables to consider are rainfall, wind, and underwater visibility, which define 2 broad seasonal patterns.
The period widely regarded as the prime diving season runs from November through May. During these months, the prevailing trade winds are generally lighter, leading to calmer surface conditions and, most notably, enhanced underwater visibility that often exceeds 30 meters (100 feet). This exceptional clarity is a significant advantage for exploring the vast structures of the wrecks, allowing for panoramic views and better ambient light for photography. Rainfall is less frequent and more sporadic, making surface intervals and time on deck more predictably pleasant. This window is consistently recommended for first-time visitors and underwater photographers seeking the clearest conditions.
The summer and early autumn months, from June through October, constitute the wetter season. This period sees more frequent rainfall and a higher likelihood of passing tropical showers, which can temporarily reduce surface visibility due to runoff. Winds can also be stronger, potentially causing choppier conditions. However, diving operations for Chuuk liveaboards continue reliably, as the lagoon’s sheltered geography offers significant protection. The advantages of traveling during this time can include fewer visitors and a unique, atmospheric quality to the wrecks, with softer light filtering through the water. It remains a viable option for seasoned scuba divers whose schedules are flexible and who prioritize availability.
For most divers planning their first liveaboard trip to Truk Lagoon, targeting the core months of December to April is advisable to maximize the chances of calm seas and peak visibility. Regardless of the season, the wrecks themselves remain unchanged in their historical grandeur and marine life populations, offering a highly rewarding experience any month of the year. Advance booking is recommended, especially for the dry season, to secure your place on these specialized voyages.
Ports of Departure and How to Get There
Chuuk is one of the 4 Federated States of Micronesia in the Pacific Ocean, northeast of Papua. It consists of several volcanic island and coral atoll groups, with Yap to the west and Pohnpei to the east. Weno in Chuuk Lagoon is the capital city and home to Chuuk International Airport (TKK). Most flights arrive via Guam (which has USA immigration regulations) from Hong Kong, Manila, Incheon or Tokyo with United Airlines. You can also arrive from Honolulu with United Airlines, via the Marshall Islands.
A permit is not required for any person visiting for 30 days of less; all visitors will be issued a tourist visa on arrival. Visas are usually issued for 30 days but can be extended once you have arrived. You will need to have a valid passport (minimum 12 months validity from planned date of entry) and a return or onward ticket. You can check the latest entry requirements on the Embassy of the Federated States of Micronesia website.
Secure your trip and dive with full peace of mind. As you plan your Chuuk liveaboard adventure, it is essential to have comprehensive travel insurance that specifically covers scuba diving activities and unforeseen trip delays or cancellations. Our recommended partner offers tailored policies for divers; you can request a personalised quote through our dedicated insurance program:

Places to Stay
Extend your liveaboard experience in Chuuk with a seamless hotel stay. To simplify your travel planning, we recommend using our trusted partner, HotelsCombined.com, for securing your pre- or post-cruise accommodation. Their platform efficiently compares options across numerous sites, supporting secure bookings and offering a best price guarantee. Discover and reserve your ideal hotel in just a few moments:
