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United States

United States, Louisiana © pixabay.com
United States Sea Temperature
This page provides detailed information about the water temperature in United States. All cities and resorts on the coast, also in lakes and along the rivers. The range of sea temperatures for today. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Sea Temperature
-1.1°C
minimal
13.4°C
average
26.0°C
maximum
Graph of Sea Temperature Changes in United States Over the Last 60 Days
The Warmest Places on the Seaside in United States Today
The Most Popular Seaside Resorts in United States
Seas and Oceans that Border United States

United States, Utah © pexels.com
Current Water Temperature in Lakes and Rivers
0.0°C
minimal
9.7°C
average
50.4°C
maximum
The Warmest Places on Lakes and Rivers in United States Today
The Most Popular Lakes and Rivers in United States
United States: List of States
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming



Water Temperature in United States: General Trends and Swimming Opportunities
The United States boasts an extensive coastline, offering a wide range of swimming opportunities across both the Atlantic and Pacific Oceans, as well as the Gulf of Mexico. The water temperatures vary greatly depending on the region, with some areas offering warm and inviting waters for swimming year-round. On the east coast, the Atlantic Ocean sees a significant variation in water temperatures, with states like Florida and parts of the Carolinas offering warm waters, especially during the summer months. In places like Miami, the water temperature can reach around 26°C to 30°C (79°F to 86°F), making it ideal for swimming and beach activities.
On the west coast, the Pacific Ocean is generally colder than the Atlantic, with water temperatures along California's coast averaging between 12°C and 18°C (54°F to 64°F), even in summer. However, warmer water can be found further south, particularly around Southern California, where temperatures in the summer can reach between 18°C and 22°C (64°F to 72°F). The Gulf of Mexico, bordering states like Texas, Louisiana, and Florida, provides some of the warmest waters in the U.S., with summer temperatures often exceeding 28°C (82°F), making it a popular destination for those seeking warmer sea conditions.
In addition to the oceans, the U.S. is home to numerous lakes and inland bodies of water, including the Great Lakes, where water temperatures can rise to more comfortable levels for swimming, especially during the summer. Lakes like Lake Michigan and Lake Tahoe offer clear and relatively warm waters in the summer, with temperatures ranging from 20°C to 25°C (68°F to 77°F), making them popular spots for swimming and recreational activities. Overall, the United States offers a variety of swimming environments, with options to suit all preferences depending on the desired water temperature and location.
General Information and Geographical Location of United States
Original name of the country: United States of America
The USA is in North America. The country is washed by six seas, such as the Chukchi Sea, the Bering Sea, the Atlantic Ocean, the Gulf of Mexico, the Pacific Ocean, and the Selish Sea. We also monitor water temperatures in large lakes in the USA. The USA is a large resort country and has a long coastline. To determine the temperature of the water in it, we track 788 settlements and resorts. Link to Google Maps.
United States Weather
The United States has a highly diverse climate due to its vast size and geographical variations. In the northern states and Midwest, winters can be extremely cold, with temperatures often dropping below 0°F (-18°C), while summers can be hot, reaching up to 90–100°F (32–38°C). The Great Plains experience a continental climate with wide temperature fluctuations, while the Rocky Mountains have colder temperatures and heavy snowfall in winter. The Northeast, including cities like New York and Boston, has four distinct seasons, with hot summers around 85°F (29°C) and cold winters dropping to 20°F (-7°C) or lower.
In contrast, the southern states, such as Florida and Texas, have a much warmer climate, with mild winters around 50–60°F (10–16°C) and hot, humid summers often exceeding 95°F (35°C). The West Coast, particularly California, has a Mediterranean climate with warm, dry summers averaging 75–85°F (24–29°C) and mild, wet winters around 50°F (10°C). The Pacific Northwest is known for its frequent rainfall and mild temperatures, while the Southwest, including Arizona and Nevada, has a desert climate with scorching summers over 110°F (43°C) and cooler winters around 40°F (4°C). Alaska experiences long, harsh winters, while Hawaii enjoys a tropical climate with warm temperatures year-round.
Frequently Asked Questions About United States and its Water Temperatures
What is the sea temperature today on the coast of United States?
The sea temperature today on the coast of United States ranges from from 30°F (-1.1°C) in Kotzebue to 79°F (26.0°C) in Florida Keys.
What is the water temperature today in lakes and rivers in United States?
The water temperature today in lakes and rivers in United States ranges from 32°F (0.0°C) in Tanana River to 123°F (50.4°C) in Skiatook Lake.
Which seas and oceans border United States?
United States is bordered by six seas, namely: the Gulf of Mexico, the Bering Sea, the Pacific Ocean, the Chukchi Sea, the Atlantic Ocean, the Salish Sea.
How long is the coastline in United States?
According to The World Factbook, the length of United States's coastline is 12,380 miles (19,924 km), while the World Resources Institute estimates it at 82,836 miles (133,312 km).
What is the best time for swimming and beach holidays on the coast of United States?
The USA is a very large country and the water temperature on the coast varies greatly. The USA is a very large country and the water temperature on the coast varies greatly. For more accurate information, it is necessary to check its values in each specific place.
What is the sea temperature history in United States?
Here are the ranges of sea temperatures in United States by month based on historical data: in January from 28°F (-2°C) to 82°F (28°C), in February from 26°F (-3°C) to 80°F (27°C), in March from 26°F (-3°C) to 84°F (29°C), in April from 26°F (-3°C) to 84°F (29°C), in May from 26°F (-3°C) to 91°F (33°C), in June from 28°F (-2°C) to 91°F (33°C), in July from 32°F (0°C) to 93°F (34°C), in August from 42°F (6°C) to 93°F (34°C), in September from 39°F (4°C) to 91°F (33°C), in October from 30°F (-1°C) to 89°F (32°C), in November from 26°F (-3°C) to 84°F (29°C), in December from 28°F (-2°C) to 84°F (29°C).