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Live · updated daily from USGS

Swimmable water near you

2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (8 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 595
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 229
  • 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. Doe Br at US Hwy 380 nr Prosper, TXUSGS gauge · Texas · 72 ft³/s
    87°F17 mi9 hrs ago
  2. Little Elm Ck nr Aubrey, TXUSGS gauge · Texas · 0 ft³/s
    84°F20 mi9 hrs ago
  3. Trinity Rv at Dallas, TXUSGS gauge · Texas · 306 ft³/s
    89°F24 mi8 hrs ago
  4. Trinity Rv bl Dallas, TXUSGS gauge · Texas · 513 ft³/s
    89°F27 mi9 hrs ago
  5. W Fk Trinity Rv at Grand Prairie, TXUSGS gauge · Texas · 202 ft³/s
    89°F31 mi8 hrs ago
  6. 85°F44 mi9 hrs ago
  7. W Fk Trinity Rv at Ft Worth, TXUSGS gauge · Texas · 4 ft³/s
    87°F46 mi8 hrs ago
  8. Trinity Rv nr Rosser, TXUSGS gauge · Texas · 611 ft³/s
    89°F47 mi8 hrs ago

Nearest swimmable spots

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

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.