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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 (12 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. Great Miami River at Hamilton OHUSGS gauge · Ohio · 22,600 ft³/s
    73°F9.6 mi12 hrs ago
  2. EAST FORK WHITEWATER RIVER AT BROOKVILLE, INUSGS gauge · Indiana
    65°F22 mi13 hrs ago
  3. LICKING RIVER AT HWY 536 NEAR ALEXANDRIA, KYUSGS gauge · Kentucky · 2,440 ft³/s
    79°F27 mi12 hrs ago
  4. E Fk Little Miami River bl Harsha Dam nr Bantam OHUSGS gauge · Ohio
    79°F32 mi13 hrs ago
  5. Caesar Creek near Wellman OHUSGS gauge · Ohio
    78°F35 mi13 hrs ago
  6. OHIO RIVER AT MARKLAND DAM NEAR WARSAW, KYUSGS gauge · Kentucky · 255,000 ft³/s
    77°F38 mi12 hrs ago
  7. EAST FORK WHITEWATER RIVER AT RICHMOND, INUSGS gauge · Indiana · 320 ft³/s
    70°F39 mi13 hrs ago
  8. Little Miami River near Oldtown OHUSGS gauge · Ohio · 1,080 ft³/s
    71°F51 mi12 hrs ago

Nearest swimmable spots

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

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.

14 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.

15 mi from your location

Brookville Lake4.7(360)

Brookville Lake

Lake · Indiana

Cycling & hiking trails loop around this lake, popular for camping, fishing & seasonal hunting.

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.