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.

Wind speed forecast bar graph

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.

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- Bill P. Long Island, NY

Latest Coastal News Filter

During the 2025 Deep-sea Habitats of the Cook Islands expedition on Exploration Vessel Nautilus the team surveyed various seascapes to better understand seabed environments, and natural and mineral resources in the region. In this image, polymetallic nodules rest on sediment accumulated in a depression between rounded pillows and extended lobate lava flows, which are evidence of ancient volcanoes. (Image credit: Courtesy of Ocean Exploration Trust)

NOAA Scientists and Partners to Map Deep Waters, Seabed in the Cook Islands

6/6/2026

By noaa.gov, noaa.gov. This summer, NOAA Ocean Exploration will conduct an expedition on NOAA Ship Okeanos Explorer to map, explore and characterize deep waters off the coast of the Cook Islands. The effort is in partnership with the Cook Islands Seabed Minerals Authority. Using remotely operated vehicles (ROVs), mapping technologies and onsite… SEE MORE

Image Credits: Needpix.com.

What Is a Safe Speed for Your Boat? It Depends on More Than You Think

6/4/2026

By John Tiger, boatingmag.com. With summer boating season in full swing, one of the most basic — and most overlooked — seamanship questions deserves a revisit: how fast should you actually be going? A new safety column from Boating Magazine breaks down the variables that determine safe speed, from experience… SEE MORE

A NOAA Fisheries-led team counts and samples Pacific salmon, trout and Arctic char below the NOAA Fisheries Auke Creek Research Station fish weir in Juneau, Alaska, May 4, 2022.(Image credit: NOAA Fisheries)

Pink Salmon Invasion in Great Lakes Has Lessons for North Atlantic, Arctic Communities

6/3/2026

By fisheries.noaa.gov, fisheries.noaa.gov. New NOAA-led research on the history of the rise of pink salmon in the Great Lakes may help fishery managers and communities on the North Atlantic and Arctic oceans tackle the recent rapid growth of the species in these new areas. It could also help those in… SEE MORE

Sailboat at anchor in a cove, blue green water.

Anchoring to Fish vs. Anchoring to Sleep: Why the Technique — and the Tackle — Should Change

6/2/2026

By Jim Hendricks, boatingmag.com. Anchoring is one of the most fundamental skills in boating, yet many recreational boaters use the same setup and approach whether they’re positioning over a wreck for an afternoon of fishing or settling into a harbor anchorage for the night. A new seamanship column from Boating… SEE MORE

Cyclothone or "Bristlemouth" fish illustration

The Ocean's Most Abundant Fish Evolved in Extreme Heat — and That May Be Good News

5/31/2026

By Daniel Hentz, whoi.edu. The most numerous fish in the ocean isn’t one most boaters or anglers will ever see. Bristlemouths — tiny, deep-dwelling fish of the genus Cyclothone — number in the quadrillions and play a major role in the ocean’s biological carbon pump, helping move CO₂ from the… SEE MORE

Image Credits: flickr.com.

Port of Everett Marina: A Complete Guide to the West Coast's Largest Public Marina

5/31/2026

By Dawn Anderson, best4boats. With 2,300 slips and over 3,000 acres of waterfront — more than half open to the public — the Port of Everett Marina in Washington State has quietly grown into one of the Pacific Northwest’s most complete boating destinations. A thorough new guide from Best4Boats covers… SEE MORE

Image Credits: Flickr.com.

The Container Ship That's Also an Ocean Science Lab

5/29/2026

By Amy E. Nevala, whoi.edu. Some of the most valuable ocean data in the Atlantic isn’t being collected by a research vessel — it’s riding aboard a container ship. The M/V Oleander, which makes twice-weekly cargo runs between Port Elizabeth, New Jersey, and Hamilton, Bermuda, has carried scientific instruments since… SEE MORE

Spring Chinook Salmon. Credit: Michael Humling, U.S. Fish & Wildlife Service

NOAA Fisheries Finds Listing Gulf of Alaska Chinook Salmon Under the Endangered Species Act “Not Warranted”

5/28/2026

By fisheries.noaa.gov, fisheries.noaa.gov. NOAA Fisheries’ 12-month review shows a low risk of extinction. NOAA Fisheries has completed a status review and 12-month finding for Gulf of Alaska Chinook salmon in response to a January 2024 petition. The Wild Fish Conservancy petitioned to delineate and list one or more evolutionarily significant units (ESUs) of Gulf of Alaska Chinook salmon… SEE MORE