Upper Bay Tide Charts

Every NOAA tide station on the Upper Bay, north to south — 23 stations, each with today's tide curve and the next high or low, and a full station page with the live curve, measured conditions, sun and moon, the marine forecast and a 60-day table.

⛵ North of Pooles Island⛵ Pooles Island to Sandy Point⛵ Patapsco River & Baltimore Harbor← All basins

North of Pooles Island

The head of the Bay: Susquehanna Flats, the Elk, Sassafras and Bohemia rivers and the approaches to the C&D Canal. Shallow, quick to build a short chop in a northwesterly, and nearly fresh in spring. Marine forecast for this zone →

Pooles Island to Sandy Point

The Bay off Baltimore's approaches down to the Bay Bridge — Rock Hall, the Patapsco mouth, Swan Point and the Chester River entrance. Marine forecast for this zone →

Patapsco River & Baltimore Harbor

The Patapsco from the Bay to the Inner Harbor: Key Bridge, Fort McHenry and the shipping channels. Commercial traffic everywhere; cross channels squarely. Marine forecast for this zone →

Be first to new features

Tide-aware routing, new harbor guides, radar upgrades — one short email when something meaningful lands. No chatter, no selling your address.