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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (11 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 929
  • 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. SF BOISE RIVER AT ANDERSON RANCH DAM IDUSGS gauge · Idaho · 807 ft³/s
    50°F20 mi1 day ago
  2. SF BOISE RIVER AT NEAL BRIDGE NR ARROWROCK DAM IDUSGS gauge · Idaho
    58°F30 mi1 day ago
  3. SNAKE RIVER AT KING HILL IDUSGS gauge · Idaho · 6,470 ft³/s
    67°F33 mi1 day ago
  4. SILVER CREEK AT SPORTSMAN ACCESS NR PICABO IDUSGS gauge · Idaho · 93 ft³/s
    63°F52 mi1 day ago
  5. YANKEE FORK SALMON RIVER NR CLAYTON IDUSGS gauge · Idaho · 71 ft³/s
    55°F59 mi1 day ago
  6. ROCK CREEK AB HWY 30/93 XING AT TWIN FALLS IDUSGS gauge · Idaho · 104 ft³/s
    64°F71 mi1 day ago
  7. BOISE RIVER AT CALDWELL, IDUSGS gauge · Idaho · 371 ft³/s
    70°F80 mi1 day ago
  8. BOISE RIVER ABV INDIAN CREEK AT CALDWELL, IDUSGS gauge · Idaho
    70°F80 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.