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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (6 hrs ago).

Clear location
  • Cold · below 60°F · 218
  • Cool · 60–69°F · 484
  • Comfortable · 70–86°F · 544
  • Warm · above 86°F · 78
  • You

A map of the United States with one coloured dot per USGS sensor reporting a live water temperature. The readings are listed below.

Nearest live readings

The closest USGS sensors currently reporting a water temperature, nearest first.

  1. SAVANNAH RIVER AT ELBA ISLAND, NEAR SAVANNAH, GAUSGS gauge · South Carolina
    87°F511 mi6 hrs ago
  2. LITTLE BACK RIVER AT FW DOCK, NEAR LIMEHOUSE, SCUSGS gauge · South Carolina
    87°F516 mi7 hrs ago
  3. L BACK RIVER ABOVE LUCKNOW CANAL, NR LIMEHOUSE, SCUSGS gauge · South Carolina
    88°F517 mi16 hrs ago
  4. NEW RIVER AT SC 46, NEAR HARDEEVILLE, SCUSGS gauge · South Carolina
    84°F520 mi6 hrs ago
  5. SAVANNAH RIVER NEAR TILLMAN, SCUSGS gauge · South Carolina
    86°F528 mi7 hrs ago
  6. STONO RIVER AT MAIN RD BELOW RANTOWLES, SCUSGS gauge · South Carolina
    88°F561 mi6 hrs ago
  7. COOPER RIVER AT S. ADGERS WHARF AT CHARLESTON, SCUSGS gauge · South Carolina
    87°F562 mi6 hrs ago
  8. COOPER RIVER AT U.S. HWY 17 AT CHARLESTON, SCUSGS gauge · South Carolina
    87°F564 mi6 hrs ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

Sombrero Beach4.5(4,873)

Sombrero Beach

Beach · Marathon, Florida

Park & beach for swimming, picnics & volleyball, plus Loggerhead turtle nesting from April-October.

1.3 mi from your location

Cocoa Plum Beach4.0(36)

Cocoa Plum Beach

Beach · Marathon, Florida
Camping nearby

This natural beach & turtle nesting spot by a wetland area features restrooms & a covered pavilion.

5.0 mi from your location

Sandspur Beach4.5(190)

Sandspur Beach

Public beach · Big Pine Key, Florida
Camping nearby

Tranquil, narrow public beach in Bahia Honda State Park featuring a mile-long stretch of fine sand.

12 mi from your location

Calusa Beach & Loggerhead Beach4.6(1,709)

Calusa Beach & Loggerhead Beach

Public beach · Big Pine Key, Florida
Camping nearby

Narrow strip with a campground, restrooms & showers, popular for kayaking, swimming & snorkeling.

13 mi from your location

Summerland Key4.7(17)

Summerland Key

Island · Summerland Key, Florida

Low-lying island with beaches & mangroves, popular for fishing, kayaking & golf.

23 mi from your location

Anne's Beach3.9(991)

Anne's Beach

Beach · Florida

Dedicated to a local environmentalist, this beach features a swim area, picnic tables & boardwalk.

23 mi from your location

About this map

Every pin is a live reading from a USGS real-time monitoring station, captured in a daily snapshot. Colours follow the site’s cold-water-safety thresholds and describe the water at that one sensor — usually a river or stream gauge, not a swim beach — so treat them as a guide to what the water is doing nearby, not a verdict on a specific spot. Readings are provisional and can be revised by the USGS. Your location only sorts this page: the coordinates appear in the address bar (rounded to about a mile) and are not saved to an account or our database.

Conditions are for general information only and can change quickly. Always judge the water in person and follow posted advisories and local guidance before swimming or paddling.