Tide Times & Tide Chart

Tide Times & Tide Chart shows the tide near you on a free, interactive map of every NOAA tide station along the US coast. Allow location access and the map jumps to the closest station, then lays out today’s tide curve, the next high and low tide with a live countdown, and a full week of tide times.

Unlike cluttered, ad-heavy tide tables, this is a clean map-first tool: tap any station to read its tide chart, switch between feet and metres, and compare nearby stations to find the one that matches your beach, harbour or fishing spot. Every prediction comes straight from NOAA, measured against the standard MLLW datum.

Whether you’re planning a beach walk at low tide, a boat launch, a surf session, a fishing trip or a coastal photo at golden hour, the tide chart tells you exactly when the water will be where you need it.

Tide Times & Tide Chart Web App with Map

How to use it

  1. Tap Find tide stations near me (the locate button) and allow location access — the map centers on you and opens the nearest station’s tides.
  2. Or search a coastal town or place in the box at the top to jump anywhere on the US coast.
  3. Tap any station dot on the map, or pick one from the nearby-stations list, to load its tide chart.
  4. Read the next high or low tide and its countdown at the top, then scan the 7-day table below the chart for the days ahead.
  5. Toggle ft / m in the top-right to switch units. Use the back arrow to return to the nearby-stations list.

How to read a tide chart

The blue curve is the predicted water height over time. Its peaks are high tides and its troughs are low tides; the small dots mark each one with its time. The dashed orange line is the current time — if the curve is climbing to its right, the tide is coming in (rising); if it’s dropping, the tide is going out (falling). The headline at the top translates this into plain words: the next high or low, how long until it arrives, and its height.

Where the data comes from

Every tide time and height is an official NOAA harmonic tide prediction from the Center for Operational Oceanographic Products and Services (CO-OPS) — the same source behind NOAA Tides & Currents. Heights are measured against Mean Lower Low Water (MLLW), the standard US tidal datum, and times are given in each station’s local time (daylight-saving aware). The station list is refreshed from NOAA periodically; predictions are fetched live so the chart always reflects the latest published forecast.

Predictions are a forecast: real water levels shift with wind, pressure and storm surge. This tool is for planning, not for navigation — always follow official charts and local authorities on the water.

Coverage

Tide stations cover the United States and its territories, including Puerto Rico, the US Virgin Islands, Guam, American Samoa and Pacific island stations — about 3,450 stations in all. International tides aren’t covered yet, because NOAA CO-OPS is the free, authoritative source for US waters and there isn’t an equivalent open global dataset; broader coverage is on the roadmap.

Frequently asked questions

What counts as “tide times near me”?

When you allow location access, the map centers on you and automatically selects the closest NOAA tide-prediction station, then shows its tide times. If you skip or block location, it falls back to your approximate network position — you can also search any coastal place or tap a station on the map.

What is the difference between high tide and low tide?

High tide is the moment the water reaches its highest point at a location; low tide is its lowest. Most US coasts have two highs and two lows roughly every 24 hours and 50 minutes. The chart shows the smooth rise and fall between them, with the next event counted down at the top.

What does MLLW (the datum) mean?

All heights are measured relative to Mean Lower Low Water (MLLW) — the average of the lower of the two daily low tides over a 19-year period. It is the standard US tidal datum, so a height of 0 ft is roughly the typical lowest water, and negative values mean the tide is below that average low.

What time zone are the tide times in?

Tide times are shown in the tide station’s own local time (NOAA’s daylight-saving-aware local standard time), not your device’s time zone — so the table reads correctly even when you are planning for a coast in a different zone.

How accurate are the tide predictions?

These are official NOAA harmonic tide predictions, the same data published on NOAA Tides & Currents. Actual water levels can differ from prediction because of wind, atmospheric pressure and storm surge, so treat the chart as a forecast, not a guarantee — and never as a navigation aid.

Does it cover tides for my country?

Coverage is the United States and its territories (including Puerto Rico, the US Virgin Islands, Guam, American Samoa and Pacific island stations), because NOAA CO-OPS is the free, authoritative source for those waters. International coverage is on the roadmap pending a suitable open data source.

What is a tide chart?

A tide chart is the curve of water height over time. The peaks are high tides, the troughs are low tides, and the dashed line marks the current time, so you can see at a glance whether the tide is coming in (rising) or going out (falling).

Where does the data come from?

Tide predictions come from the NOAA Center for Operational Oceanographic Products and Services (CO-OPS). The basemap is © CARTO and © OpenStreetMap contributors, and place search uses Photon (© OpenStreetMap contributors).

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