US Harbors | Tide Charts, Marine Forecast, Coastal Flooding

US Harbors is the #1 Source for Tide Charts and Coastal Information for over 1,400 harbors in 30 coastal states. Our curated data helps you plan smarter, enjoy your time on the water, and stay ahead of rapidly changing tides, storms, and flooding.

Tide Charts

US Harbors illustrates tide forecasts with our simple, intuitive charts. Easily scan the highs and lows online or print a convenient monthly tide chart for the boat or office.

Weather

US Harbors delivers weather predictions with a focus on marine forecasts, buoy data, weather alerts, and onshore forecasts for harbors near you that include wind speed and direction, relative humidity, and more.

High Tide Flooding

Each month, we publish a high-tide flooding report for forecasted harbors across the country. Look for harbors near you to know when extreme high tides could cause flooding. Sign up for our newsletter to be alerted to new high tide flooding reports.

Latest Coastal News Filter

Is Offshore Construction Noise Stressing New England's Lobsters? WHOI Scientists Want to Know

9/8/2026

By Kiran Johnson, whoi.edu. As offshore wind farms multiply along the New England coast, a question with real consequences for one of the region’s most valuable fisheries is getting its first rigorous scientific investigation: does the noise from wind farm construction affect the American lobster? WHOI scientists are working alongside… SEE MORE

The image depicts two individuals on the deck of a research vessel at sea, engaged in deploying a piece of oceanographic equipment that measures temperature and depth

Why NOAA Matters: Maine's Island Institute Makes the Case

7/30/2026

Why NOAA Matters: Maine’s Island Institute Makes the Case Every mariner who checks a forecast before leaving the dock, every harbormaster tracking a king tide, and every fishing family checking for water temperature shifts is relying, often without thinking about it, on the National Oceanic and Atmospheric Administration, commonly shortened… SEE MORE

A Tale of Two Gulf of Alaska Crossings: Yacht and Tugboat

6/23/2026

By Norris Comer, best4boats. The Gulf of Alaska is one of those bodies of water that commands respect from anyone who’s crossed it — or plans to. In a vivid first-person account for Best4Boats, editorial director Norris Comer recounts two very different passages across the gulf: one aboard a 1965… SEE MORE

In The Zone: The Sabre 51 Salon Express

By US Harbors When Sabre Yachts completed construction of hull number 200 of its 48 Salon Express model, more than half the crew who built it had also worked on hull number one. The average tenure on that line was 12 years, and they produced a yacht that proved to… Learn More

Celebrate National Fishing and Boating Week!

6/11/2026

By fisheries.noaa.gov, fisheries.noaa.gov. Marine recreational fishing is a cherished American pastime and draws millions of anglers to support our coastal communities. Celebrate our nation’s love for fishing and boating during National Fishing and Boating Week. Cast a line and join anglers across the country in celebrating National Fishing and Boating… SEE MORE

coast guard cutter moving through ice in the arctic

Coast Guard Icebreaker Healy Returns to Seattle After Arctic Patrol

11/7/2025

By news.uscg.mil, Published in news.uscg.mil. The U.S. Coast Guard Cutter Healy’s return to its Seattle home port marks the completion of another critical Arctic deployment that underscores America’s strategic presence in increasingly contested northern waters. As international activity intensifies in Arctic regions—including heightened foreign research vessel operations—the Coast Guard’s icebreaking… SEE MORE

US Coast Guard crew hauling a navigation marker for inspection and maintenance

U.S. Coast Guard Coastal Buoy Removal Proposal Update

10/1/2025

After receiving nearly 3,000 public comments on the Coastal Buoy Modernization Proposal (NY to Maine), the Coast Guard has made adjustments to the proposed changes. New public comment deadline: Nov 13, 2025 October 1, 2025 | Source: Northeast Regional Ocean Council (NROC) The U.S. Coast Guard received nearly 3,000 public… SEE MORE

Coast Guard Seminar Explores Fishing Vessel Safety at Pacific Marine Expo

12/14/2024

By Ben Hayden. The U.S. Coast Guard (USCG) presented its “Fishing Vessel Safety Program Updates” seminar during day two of the Pacific Marine Expo. The session detailed challenges and partnerships aimed at improving safety within the commercial fishing industry, also providing a look at the Coast Guard’s work on policy enforcement, marine… SEE MORE

Rescue of Six Fishermen Shows Importance of Personal Locator Beacons

9/10/2024

By Carli Stewart. Six fishermen were rescued, and their disabled vessel was towed to Satawal Atoll in the Federated States of Micronesia (FSM) after a coordinated search by international operations. The United States Coast Guard, one of the crews involved in the rescue efforts, has written statements about the importance… SEE MORE

SEE ALL LATEST COASTAL NEWS

Featured Harbors

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A laptop computer displaying the tide page on US Harbors

Who Is US Harbors?

We are a community of boaters, fishermen, surfers, scientists, waterfront homeowners, along with mariners and coastal professionals who work and live by the water. It is the project of a committed team who understand how conditions influence work and play on the coast because we live by the tides just like you. Our home port is Camden, Maine, one of over 1,400 harbors we serve.

Built For People Who Live By The Tides