Simple Tides / Guides / St. John Tides
St. John Tide Chart
St. John — the U.S. Virgin Island two-thirds covered by Virgin Islands National Park — runs on diurnal Caribbean tides: one high and one low a day of around a foot. The NOAA station sits at Lameshur Bay on the island’s south shore, so times match Cruz Bay and the south-side bays best.
Upcoming tides in St. John
Live NOAA predictions for station 9751381 (Lameshur Bay, St John).
| Day | Time | Tide | Height |
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Heights in feet above MLLW, station local time. See the full interactive tide map.
The pattern
One high tide and one low tide per day with around a foot of range — small, gentle diurnal Caribbean water. With so little swing, the time of the single daily change matters more than its height; plan snorkeling and dinghy trips around it.
Park island
Virgin Islands National Park’s trails and ruins run through the north-shore bays — Trunk Bay’s snorkel trail is the famous one. The reef fishes and lobster grounds work the single daily window; our best time to fish tides guide covers the Caribbean timing.
Boating
The island’s bays are reef-ringed — coral heads hide just under the surface, and the small tide won’t float you off. Anchor on sand, mind the park moorings, and watch the trade-wind chop. For the region, see our Puerto Rico & Caribbean tides guide.