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
The Coast Is Clear-er: NOAA Unveils New Land Cover Maps 900 Times Greater In Detail
By noaa.gov, noaa.gov. NOAA is releasing new, higher-resolution land cover maps for coastal Alabama, Mississippi, Northeastern Ohio, Rhode Island, and the Puget Sound in Washington. The data will be made available through the Digital Coast website and will provide these communities with better information for decisions related to stormwater management, water quality… SEE MORE
Port of Everett Marina: A Complete Guide to the West Coast's Largest Public Marina
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
World Fish Migration Day
By fisheries.noaa.gov, fisheries.noaa.gov. May 23, 2026 is World Fish Migration Day: a global celebration of the importance of migratory fish. Every year, millions of fish—salmon, steelhead trout, shad, alewives, and sturgeon, among others—migrate to their native habitats to reproduce. Some fish swim thousands of miles through oceans and rivers to… SEE MORE
FEATURED CONTENT
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
Good News Stories for Endangered Species Day 2026
By fisheries.noaa.gov, fisheries.noaa.gov. This Endangered Species Day, we’re highlighting conservation successes and progress made toward the recovery of endangered species. Endangered species face many threats, but thanks to protections under the Endangered Species Act, some are showing signs of recovery. For Endangered Species Day, we’re highlighting a few success stories. By… SEE MORE
New England Fishery Management: Backed by Science, Shaped by People
By fisheries.noaa.gov, fisheries.noaa.gov. One of New England’s most iconic sights: Rain or shine, fishing boats slipping out of the harbor at dawn, just as they have for generations. The centuries-old scene feels timeless. But the industry behind it isn’t sustained by tradition alone; it endures because of science-based management. At… SEE MORE
NOAA Sargassum Tool Now Provides Daily Update of Risk of Seaweed Washing up on Beaches
By research.noaa.gov, research.noaa.gov. Upgrade will help communities anticipate impacts, risks, and supports planning and response. NOAA’s Sargassum Inundation Risk tool (SIR) has been upgraded to offer daily reports on the location and risk that brown floating algae could wash ashore along coastal areas in the Caribbean, Florida, Gulf of America, and northern… SEE MORE
Three Ocean Robots Exploring Active Underwater Volcanoes
By Amelia Macapia, whoi.edu. The ocean floor is home to thousands of volcanoes — many of them active — and understanding what’s happening down there requires machines that can go where humans can’t. A new feature from WHOI’s Oceanus magazine profiles three robotic vehicles that are transforming what scientists know… SEE MORE
NOAA Ship Thomas Jefferson Returns to the Great Lakes
By oceanservice.noaa.gov, oceanservice.noaa.gov. Survey work will map areas for the first time since the 1940s. For the first time since 2022, the NOAA Ship Thomas Jefferson is underway in the Great Lakes. The vessel and its crew of NOAA Corps officers and professional mariners are working with NOAA scientists to map the… SEE MORE
Featured Harbors
Cast off the lines, explore the coast, and discover new harbors!
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Port Clinton, OH
Ohio
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Palm Beach, FL
Southeast, FL
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Bath, ME
Midcoast & Penobscot Bay, ME
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Fort Lauderdale – Bahia Mar YC, FL
Miami & South FL
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Roche Harbor, San Juan Island, WA
Washington
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Westport, Grays Harbor, WA
Western Pacific Coast, WA
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St. Petersburg, FL
Tampa Bay & West Central, FL
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Portland, ME
Southern Coast & Casco Bay, ME
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Annapolis, MD
Potomac River, D.C & Western Chesapeake Bay, MD
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Charleston, SC
South Carolina
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Valdez, AK
Southwest, AK
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Lake Worth Creek, Day Beacon 19, ICWW, FL
Southeast, FL
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Jupiter, Lake Worth Creek, ICWW, FL
Southeast, FL
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Jupiter Inlet, South Jetty, FL
Southeast, FL
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Southwest Harbor, ME
Maine
