Skip to content
The Water Around Us
Sign In

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°F524 mi7 hrs ago
  2. LITTLE BACK RIVER AT FW DOCK, NEAR LIMEHOUSE, SCUSGS gauge · South Carolina
    87°F528 mi8 hrs ago
  3. L BACK RIVER ABOVE LUCKNOW CANAL, NR LIMEHOUSE, SCUSGS gauge · South Carolina
    88°F529 mi17 hrs ago
  4. NEW RIVER AT SC 46, NEAR HARDEEVILLE, SCUSGS gauge · South Carolina
    84°F533 mi7 hrs ago
  5. SAVANNAH RIVER NEAR TILLMAN, SCUSGS gauge · South Carolina
    86°F540 mi8 hrs ago
  6. MISSISSIPPI SOUND AT USGS ROUND ISLAND LIGHT, MSUSGS gauge · Mississippi
    88°F575 mi1 day ago
  7. STONO RIVER AT MAIN RD BELOW RANTOWLES, SCUSGS gauge · South Carolina
    88°F578 mi7 hrs ago
  8. COOPER RIVER AT S. ADGERS WHARF AT CHARLESTON, SCUSGS gauge · South Carolina
    87°F580 mi7 hrs ago

Nearest swimmable spots

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

Higgs Beach4.4(4,093)

Higgs Beach

Public beach · Key West, Florida
Camping nearbyDog-friendly

Fenced beachside dog park provides benches & grassy areas for small & large pets to roam off-leash.

0.9 mi from your location

Rest Beach4.3(48)

Rest Beach

Beach · Key West, Florida
Camping nearbyDog-friendly

Picnic tables & mature palms fringe this beach with soft white sand popular for shell searching.

1.0 mi from your location

Smathers Beach4.2(9,070)

Smathers Beach

Public beach · Key West, Florida

Public beach & a spring break destination with showers & volleyball, plus jet ski rentals.

2.0 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.

24 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.