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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,141 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (1 hr ago).

Clear location
  • Cold · below 60°F · 385
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 934
  • Warm · above 86°F · 215
  • 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. Little Miami River near Oldtown OHUSGS gauge · Ohio · 225 ft³/s
    70°F8.2 mi1 hr ago
  2. Caesar Creek near Wellman OHUSGS gauge · Ohio
    60°F13 mi1 hr ago
  3. Buck Creek bl CJ Brown Reservoir nr Springfield OHUSGS gauge · Ohio
    75°F24 mi1 hr ago
  4. Great Miami River at Troy OHUSGS gauge · Ohio · 5,760 ft³/s
    73°F31 mi1 hr ago
  5. Stillwater River at Pleasant Hill OHUSGS gauge · Ohio · 1,160 ft³/s
    70°F38 mi1 hr ago
  6. Great Miami River at Hamilton OHUSGS gauge · Ohio · 14,500 ft³/s
    73°F38 mi1 hr ago
  7. Paint Creek near Bainbridge OHUSGS gauge · Ohio
    74°F40 mi1 hr ago
  8. Big Darby Creek above Georgesville OHUSGS gauge · Ohio
    72°F42 mi1 hr 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.

17 mi from your location

RiverScape MetroPark4.7(4,063)

RiverScape MetroPark

Park · Dayton, Ohio

Park along the Great Miami River, offering winter ice-skating, community events & floral plantings.

17 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.