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Live · updated daily from USGS

Swimmable water near you

2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (23 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • 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
    79°F13 mi1 day ago
  2. Caesar Creek near Wellman OHUSGS gauge · Ohio
    78°F20 mi1 day ago
  3. LICKING RIVER AT HWY 536 NEAR ALEXANDRIA, KYUSGS gauge · Kentucky · 2,440 ft³/s
    79°F28 mi23 hrs ago
  4. Great Miami River at Hamilton OHUSGS gauge · Ohio · 22,600 ft³/s
    73°F30 mi23 hrs ago
  5. Little Miami River near Oldtown OHUSGS gauge · Ohio · 1,080 ft³/s
    71°F39 mi23 hrs ago
  6. Paint Creek near Bainbridge OHUSGS gauge · Ohio
    74°F39 mi23 hrs ago
  7. EAST FORK WHITEWATER RIVER AT BROOKVILLE, INUSGS gauge · Indiana
    65°F52 mi1 day ago
  8. Buck Creek bl CJ Brown Reservoir nr Springfield OHUSGS gauge · Ohio
    75°F55 mi1 day ago

Nearest swimmable spots

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

Cowan Lake State Park4.5(1,466)

Cowan Lake State Park

State park · Wilmington, Ohio
Camping nearby

Camping & cabin rentals are available in this 1,075-acre park that offers hiking, boating & fishing.

16 mi from your location

Ohio River Trail4.8(4,197)

Ohio River Trail

Park · Cincinnati, Ohio

Scenic riverside venue with fountains, gardens, walkways, playgrounds, event lawns & restaurants.

25 mi from your location

Smale Riverfront Park4.8(1,889)

Smale Riverfront Park

Park · Cincinnati, Ohio

Park along the Ohio River featuring gardens, a playground, a splash pad & panoramic walking paths.

25 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.