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 22, 2026 (6 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 930
  • 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. Scioto River near Prospect OHUSGS gauge · Ohio · 2,850 ft³/s
    72°F7.4 mi7 hrs ago
  2. Big Walnut Creek at Sunbury OHUSGS gauge · Ohio · 87 ft³/s
    71°F18 mi6 hrs ago
  3. Alum Creek at Africa OHUSGS gauge · Ohio · 302 ft³/s
    78°F19 mi7 hrs ago
  4. Scioto R. at O'Shaughnessy Dam near Dublin OHUSGS gauge · Ohio
    72°F20 mi7 hrs ago
  5. Hoover Reservoir at Central College OHUSGS gauge · Ohio
    78°F25 mi6 hrs ago
  6. Griggs Reservoir at Columbus OHUSGS gauge · Ohio
    73°F29 mi6 hrs ago
  7. Clover Groff Ditch below Alton OHUSGS gauge · Ohio · 58 ft³/s
    76°F35 mi7 hrs ago
  8. Raccoon Creek near Granville OHUSGS gauge · Ohio · 229 ft³/s
    69°F37 mi7 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.