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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 (12 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. NORTH BRANCH POTOMAC RIVER AT BARNUM, WVUSGS gauge · West Virginia · 272 ft³/s
    57°F15 mi12 hrs ago
  2. SOUTH BRANCH POTOMAC RIVER NEAR SPRINGFIELD, WVUSGS gauge · West Virginia · 478 ft³/s
    75°F15 mi12 hrs ago
  3. SAVAGE RIV BL SAVAGE RIV DAM NEAR BLOOMINGTON, MDUSGS gauge · Maryland · 63 ft³/s
    57°F18 mi1 day ago
  4. SAVAGE RIVER NEAR BARTON, MDUSGS gauge · Maryland · 46 ft³/s
    64°F21 mi1 day ago
  5. WAITES RUN NEAR WARDENSVILLE, WVUSGS gauge · West Virginia · 1 ft³/s
    65°F25 mi12 hrs ago
  6. DEEP CREEK LAKE NEAR THAYERVILLE, MDUSGS gauge · Maryland
    74°F25 mi1 day ago
  7. BLACKWATER RIVER AT DAVIS, WVUSGS gauge · West Virginia · 134 ft³/s
    65°F34 mi12 hrs ago
  8. CACAPON RIVER NEAR GREAT CACAPON, WVUSGS gauge · West Virginia · 117 ft³/s
    75°F36 mi12 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.