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The Water Around Us
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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. OHIO RIVER AT OLMSTED, ILUSGS gauge · Illinois · 330,000 ft³/s
    82°F59 mi1 day ago
  2. GREEN RIVER AT LOCK 1 AT SPOTTSVILLE, KYUSGS gauge · Kentucky
    83°F73 mi1 day ago
  3. WABASH RIVER AT NEW HARMONY, INUSGS gauge · Indiana · 61,100 ft³/s
    78°F83 mi1 day ago
  4. CUMBERLAND RIVER NEAR BORDEAUX, TNUSGS gauge · Tennessee
    82°F85 mi6 hrs ago
  5. Mississippi River at Cape Girardeau, MOUSGS gauge · Missouri
    83°F85 mi1 day ago
  6. HARPETH RIVER AT BELLEVUE, TNUSGS gauge · Tennessee · 196 ft³/s
    79°F86 mi7 hrs ago
  7. CUMBERLAND R AT OMOHUNDRO WTR PLT AT NASHVILLE, TNUSGS gauge · Tennessee
    81°F90 mi6 hrs ago
  8. BIG MUDDY RIVER AT RTE 127 AT MURPHYSBORO, ILUSGS gauge · Illinois · 870 ft³/s
    80°F91 mi1 day 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.