Simple Tides / Guides / Puerto Rico & Caribbean Tides

Puerto Rico & Caribbean Tides

Like Hawaii, Puerto Rico and the U.S. Virgin Islands sit surrounded by deep open ocean rather than a funneling continental shelf, which keeps the tidal range modest year-round.

A small, mixed pattern

Expect a mixed semidiurnal to diurnal tide across most of Puerto Rico and the U.S. Virgin Islands, typically in the 1–2 foot range — small by mainland U.S. standards, for the same underlying reason Hawaii's tides stay small: there's no large, shallow, funnel-shaped bay nearby to amplify the tide the way the Bay of Fundy or Cook Inlet do.

Small range, real impact on reefs

Even a foot or two of tide matters enormously here because so much of the coastline is fringed by shallow coral reef, similar to the dynamic covered in our Hawaii tides guide. Divers and snorkelers pay attention to tide stage around reef passes and shallow reef flats, where a low tide can leave far less clearance than expected.

Where currents matter more than tide height

Passages like the Mona Passage between Puerto Rico and the Dominican Republic, and channels between the U.S. Virgin Islands, see real current driven partly by tide and partly by the general westward flow of Caribbean water — worth checking before a crossing by boat or kayak, alongside our kayaking and tidal currents guide.

Hurricane season

The Caribbean hurricane season (June through November) brings the same storm surge risk seen on the mainland Gulf and Atlantic coasts, worth planning around for any trip during those months.

Find stations across Puerto Rico and the U.S. Virgin Islands on the Simple Tides map.