Next high tide at Saint John, New Brunswick: 08:00 GMT-4, 2.13 m

Tide times at Saint John, New Brunswick on Sunday, 26 April 2026: first high tide at 08:00pm. Sunrise 05:20am, sunset 07:24pm.

Tide curve — next 24 hours

Predictions: Open-Meteo Marine (MeteoFrance SMOC, 0.08° grid) — heights relative to MSL (not chart datum / LAT). Model-derived.

Model-derived from a global ocean grid. Useful indication; expect about ±45 minutes on average vs. a local harmonic gauge, individual stations vary widely. See /methodology for per-region detail. Not for navigation.

Best windows Sun 26 Apr

Suggested time slots at Saint John, New Brunswick, derived from the tide, sun, moon, and conditions data on this page. Rough guidance, not a forecast.

• Fishing
  Around 03:11, solunar major near sunrise
  Moon transit nearest the sun's horizon — angler tradition only, no certainty
  Confidence: medium
  7-day fishing strip →

Spring & neap tides at Saint John, New Brunswick

Next spring tide on Fri 01 May (range 6.0m). Last neap on Sun 26 Apr.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

About tides at Saint John, New Brunswick

Saint John sits at the mouth of the Saint John river on the inner Bay of Fundy, on the Canadian east coast, where the largest tide range on Earth runs through the working harbour twice a day. The Bay of Fundy resonates close to the natural period of the lunar semidiurnal forcing, which means each tide reinforces the previous one as it propagates up the funnel-shaped basin, building amplitude on the way to the head where the geometry concentrates the entire mass of water into a narrow throat. Burntcoat Head Park across the bay on the Nova Scotia side holds the official Guinness world record for tidal range at 16.3 metres of swing on the largest spring tides; Saint John itself runs slightly less because it sits closer to the mouth of the bay than to the head. Mean range at the Saint John harbour gauge is about 6.9 metres on a normal day, climbing past 8.5 metres on the largest spring tides and dropping near 5.0 on neaps. The pattern is cleanly semidiurnal — two highs and two lows of comparable size each day, twelve and a half hours apart. The Reversing Falls at the mouth of the Saint John river is the defining local feature: the rising Bay of Fundy tide overpowers the river current at the harbour entrance and pushes water upstream into the river basin, then reverses direction as the tide drops, producing standing waves and a navigable slack window only at high and low water. Hopewell Rocks across the bay on the New Brunswick side, the Fundy Trail Parkway, the working fishing fleet at Saint Andrews on Passamaquoddy Bay, and the Salmon Cove sand beach at Quaco Head all read the table for different windows. The lowest spring lows expose mud flats stretching kilometres offshore and the bottom of the cycle reveals the upper half of the working pier pilings that the rising tide will cover entirely twelve hours later. Open-Meteo Marine drives the gridded predictions on this page; for authoritative Canadian Maritime tide data, the Canadian Hydrographic Service publishes the official tide tables and operates the Saint John reference gauge.

Common questions about tides at Saint John, New Brunswick