United States
Guam
Guam, in the North Pacific, offers year-round tropical saltwater diving influenced by the Philippine Sea. Most diving is coastal with plenty of shore-access options, while many operators run boat trips to deeper outer reefs and drop-offs. Expect typical conditions of warm water and visibility that varies by season and weather; currents can increase around exposed points. Divers commonly look for reef fish, reef-building corals, and invertebrates such as nudibranchs, along with larger pelagic species when conditions align. As an island hub, Guam is convenient for divers who want short-to-moderate travel times and a mix of beginner-friendly sites and more demanding profiles depending on the location.
Essential information for traveling in United States
About United States
Practicalities
Diving specifics
Top scuba diving cities in the region of Guam
Sorted by popularity
Hågat Municipality
Guam base for reef dives in the Philippine Sea (mostly saltwater).
Piti
Local Guam access point to North Pacific/Philippine Sea diving.
Asan Municipality
Coastal Guam (Philippine Sea) base for reef dives, often with seasonal visibility.
Dive sites and dive centers around Guam
The cities
- 55 sites
- 54 sites
- 51 sites
- 48 sites
- 32 sites
- 55 sites
- 54 sites
- 51 sites
- 48 sites
- 32 sites
- 22 sites
- 17 sites
- 17 sites
- 11 sites
The best time to dive in Guam
The best months to dive in Guam are from May to September. Temperatures are confortable (27-29°C), currents are mild and the visibility is at its best.
Based on last year's weather. Scores compare months for this destination only and are indicative. A mitigated month may still suit many divers.
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