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US Tide Charts, Town by Town

Seven day tide tables and today's tide curve for 179 NOAA harmonic prediction stations across 24 coastal states, read live from NOAA CO-OPS and reproduced as published.

179 station pages across 24 coastal states
Station pages
179
Coastal states
24
Source
NOAA CO-OPS

The US tide, at a glance

NOAA harmonic predictions
179
tide chart pages
one per NOAA harmonic station
24
coastal states covered
plus the tidal Hudson and Delaware rivers
26.19 ft
largest mean range on these pages
Anchorage, AK
2x daily
typical tide rhythm
semidiurnal or mixed on most US coasts

The next high tide is one number. The week is the useful view: the curve, the heights, the sun and moon times, and the one afternoon a minus tide turns the shoreline into walkable ground.

Directory

Tide charts by state

Every page reads NOAA’s harmonic predictions live for one station: today’s curve, 7 days of highs and lows with heights, sunrise and sunset, the moon phase, and derived callouts like the lowest daytime tide of the week. Pick a state, then the station nearest the shoreline you plan to stand on.

The five minute version

How to read a tide chart

A tide chart lists the times the water reaches its highest and lowest points each day, with a predicted height beside each. The heights are measured from mean lower low water (MLLW), the long-term average of the lower of each day’s two lows, which is also the zero on NOAA’s nautical charts. So a 4.2 ft high tide means the water stands 4.2 feet above that average lowest level, and a minus tide is water below it, exposing ground that most days never uncover.

Between the listed times the water is always moving, fastest in the middle of the swing: roughly half of the total change happens in the middle two hours between a high and a low. That is why the station pages draw the full curve rather than just the four moments, and why anglers talk about fishing the moving water rather than the slack at either end.

Timing is local. The tide arrives as a wave traveling along the coast and up every bay, so the right chart is the station nearest your actual shoreline, not the nearest big city. Each of the 179 pages here is one NOAA harmonic station with its own schedule.

Wide tidal flats exposed at low tide on Cape Cod Bay at Brewster, Massachusetts, with beachgoers far out on the wet sand
The Brewster Flats on Cape Cod Bay at low tide. For a couple of hours either side of the low, the bay floor is a walkable landscape; the chart says when. “Brewster Flats Tidal Flats on Cape Cod Bay East Brewster Massachusetts” by EgorovaSvetlana, CC BY-SA 4.0
A person digging for clams with a long-handled tool on a wet sand flat exposed at low tide
Clam digging on an Oregon tide flat. The chart is the difference between this and open water: the flat exists for a couple of hours around low tide. State harvesting rules always apply. “Clam digging” by Martyne Reesman, Oregon Department of Fish and Wildlife, CC BY-SA 2.0
Why weeks differ

Moon phase, spring tides and king tides

The moon does most of the pulling. Around new and full moon the sun and moon line up and every coast gets its spring tides, the biggest highs and lowest lows of the month; around the quarter moons the pulls partly cancel and the swing shrinks to neap tides. The best tidepooling and clamming weeks cluster around the new and full moons for exactly this reason, and every station page here prints the moon phase beside every day.

The National Ocean Service’s definition of the term you hear on the news: “A King Tide is a non-scientific term people often use to describe exceptionally high tides,” typically when a new or full moon coincides with the moon’s perigee, its closest approach to Earth. Add onshore weather and the highest highs can flood streets that stay dry the rest of the year.

A full moon rising over calm water beyond a stone breakwater with people watching from it
A full moon rising over the water (Brisbane River, Australia; the physics is global). Full and new moons bring spring tides to every coast on these pages. “Full Moon rising over Brisbane River-1” by Sheba_Also 43,000 photos, CC BY-SA 2.0
A city street in Miami flooded at night by tidal water during a king tide, with headlights reflecting off the water
Tidal flooding in Miami during the October 2016 king tides, when exceptionally high astronomical tides met rain and onshore wind. “Miami tidal flooding with rain at high tide during king tides 02” — B137 — CC0
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Named, with reasons

Why some states have no tide chart here

The Great Lakes states. Michigan, Wisconsin, Illinois, Indiana, Ohio and Minnesota have magnificent freshwater coasts but no usable lunar tide, and we would rather say so than ship an empty chart. NOAA’s National Ocean Service explains: “True tides, changes in water level caused by the gravitational forces of the sun and moon, do occur in a semi-diurnal (twice daily) pattern on the Great Lakes. Studies indicate that the Great Lakes spring tide, the largest tides caused by the combined forces of the sun and moon, is less than five centimeters in height. These minor variations are masked by the greater fluctuations in lake levels produced by wind and barometric pressure changes. Consequently, the Great Lakes are considered to be non-tidal.” What moves Great Lakes water levels day to day is wind and pressure, including seiches, which are weather events rather than predictable tides.

The inland states. Vermont, West Virginia, Kentucky, Tennessee, Iowa, Missouri, Arkansas, Oklahoma, Kansas, Nebraska, South Dakota, North Dakota, Montana, Wyoming, Colorado, New Mexico, Arizona, Utah, Nevada and Idaho have no tidal shoreline at all. Note that a missing ocean is not always obvious from a map: Pennsylvania makes this list of covered states because the Delaware River is genuinely tidal past Philadelphia, and New York’s Hudson runs tidal all the way to Albany.

Common questions

Tide chart FAQ

Tide predictions are read live in your browser from NOAA CO-OPS (api.tidesandcurrents.noaa.gov) and reproduced as published; station facts come from the CO-OPS metadata API. NOAA material is US government work in the public domain; attribution is given as NOS requests. NOAA’s published disclaimer applies to every prediction shown: “These data are based upon the latest information available as of the date of your request, and may differ from the published tide tables.” These pages are for beach, fishing and tidepool planning, not navigation.
Hero image: “Brewster Flats Tidal Flats on Cape Cod Bay East Brewster Massachusetts” by EgorovaSvetlana, CC BY-SA 4.0