Skip to content
The Water Around Us
Sign In

Live · updated daily from USGS

Swimmable water near you

2,136 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (13 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • 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. Big Walnut Creek at Sunbury OHUSGS gauge · Ohio · 286 ft³/s
    71°F27 mi13 hrs ago
  2. Raccoon Creek near Granville OHUSGS gauge · Ohio · 580 ft³/s
    70°F32 mi14 hrs ago
  3. Alum Creek at Africa OHUSGS gauge · Ohio · 8 ft³/s
    77°F34 mi14 hrs ago
  4. Hoover Reservoir at Central College OHUSGS gauge · Ohio
    79°F35 mi13 hrs ago
  5. Scioto River near Prospect OHUSGS gauge · Ohio · 2,370 ft³/s
    73°F37 mi14 hrs ago
  6. Scioto R. at O'Shaughnessy Dam near Dublin OHUSGS gauge · Ohio
    72°F42 mi14 hrs ago
  7. Griggs Reservoir at Columbus OHUSGS gauge · Ohio
    73°F47 mi13 hrs ago
  8. Huron River at Milan OHUSGS gauge · Ohio · 48 ft³/s
    71°F54 mi13 hrs ago

Nearest swimmable spots

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

North Lake Park4.1(571)

North Lake Park

State park · Mansfield, Ohio

Cozy park adjacent to a paved rail corridor featuring a fishing lake, playground & picnic areas.

16 mi from your location

Charles Mill Lake4.5(205)

Charles Mill Lake

Lake · Ohio
Camping nearby

Large reservoir surrounded by trees & featuring a marina for boating, plus fishing & swimming.

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.