The map above is updated daily and shows the ocean water temperature as recorded on 14th Apr 2025

Coastal water temperatures around United States Ocean temperature and marine climate data is provided daily by the National Oceanic and Atmospheric Administration

The NCEI Coastal Water Temperature Guide (CWTG) provides recent ocean and Great Lakes temperatures and average water temperatures collected from buoys, tide gauges, and other monitoring stations in the United States and its territories.

Additional sources for Water Temperature Information: USGS Water Temperature NOAA Great Lakes Environmental Research Laboratory Great Lakes Surface Temperatures US Army Corps of Engineers - Access to Water Resources Data -Click on Map and locations to view water temperature at selected sites.

Get real-time water temperature data for oceans, seas, lakes, and rivers worldwide. Updated daily with data from NOAA, Copernicus, and official weather services. Explore historical trends and forecasts for coastal cities and inland water bodies.

Current water temperatures, weather forecasts, and other local information for oceans, lakes, rivers, and streams around the world.

Displayed are water temperatures from buoys and tide gauge stations near U.S. coastal waters. Temperatures shown in Green have recently reported and those in Yellow are more than 24 hours old.

To find up to date information on daily or monthly water temperature reports, sea state and marine weather, search by destination or choose from a list of the countries, seas and oceans below.

WaterTemperature.net offers for the most frequent places close to the ocean water temperatures on a monthly base.

Sea water temperature in some cities of United States is above 68°F and it is enough for comfortable bathing. The warmest sea temperature in United States today is 80.4°F (in West Palm Beach), and the coldest water temperature is 28.8°F (Barrow).