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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. Cedar River at Waverly, IAUSGS gauge · Iowa · 926 ft³/s
    73°F69 mi1 day ago
  2. 76°F81 mi1 day ago
  3. Cedar River at Vinton, IAUSGS gauge · Iowa · 4,860 ft³/s
    72°F109 mi1 day ago
  4. 49°F114 mi1 day ago
  5. 76°F123 mi1 day ago
  6. 72°F126 mi1 day ago
  7. Morgan Creek near Covington, IAUSGS gauge · Iowa · 10 ft³/s
    67°F128 mi1 day ago
  8. Turkey River at Garber, IAUSGS gauge · Iowa · 881 ft³/s
    73°F128 mi1 day ago

Nearest swimmable spots

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

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.