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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 (9 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. E Fk Little Miami River bl Harsha Dam nr Bantam OHUSGS gauge · Ohio
    78°F45 mi10 hrs ago
  2. OHIO RIVER AT IRONTON, OHUSGS gauge · Ohio · 105,000 ft³/s
    76°F46 mi10 hrs ago
  3. Paint Creek near Bainbridge OHUSGS gauge · Ohio
    73°F48 mi10 hrs ago
  4. Caesar Creek near Wellman OHUSGS gauge · Ohio
    61°F69 mi10 hrs ago
  5. Great Miami River at Hamilton OHUSGS gauge · Ohio · 10,500 ft³/s
    73°F79 mi10 hrs ago
  6. Little Miami River near Oldtown OHUSGS gauge · Ohio · 159 ft³/s
    68°F84 mi10 hrs ago
  7. Scioto River above Shadeville OHUSGS gauge · Ohio
    73°F92 mi10 hrs ago
  8. Big Darby Creek above Georgesville OHUSGS gauge · Ohio
    71°F93 mi10 hrs ago

Nearest swimmable spots

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

No rated, photographed swim spots within 25 miles of this point yet. The nearest sensor readings above still tell you what the water is doing — or search any river, lake or beach by name.
Search a spot →

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.