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 (8 hrs ago).
- 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.
- N Br Towanda Cr, Clark Rd nr Granville Summit PAUSGS gauge · Pennsylvania · 0 ft³/s65°F22 mi9 hrs ago
- Susquehanna River at Danville, PAUSGS gauge · Pennsylvania · 5,550 ft³/s75°F31 mi8 hrs ago
- Tioga River near Mansfield, PAUSGS gauge · Pennsylvania · 32 ft³/s66°F37 mi9 hrs ago
- Pine Creek bl L Pine Creek near Waterville, PAUSGS gauge · Pennsylvania · 209 ft³/s72°F40 mi9 hrs ago
- Tioga River at Tioga Junction, PAUSGS gauge · Pennsylvania · 63 ft³/s71°F47 mi9 hrs ago
- Lehigh R bl Francis E Walter Res nr White Haven PAUSGS gauge · Pennsylvania · 843 ft³/s70°F49 mi8 hrs ago
- Cowanesque River near Lawrenceville, PAUSGS gauge · Pennsylvania · 75 ft³/s70°F50 mi9 hrs ago
- Lehigh River at Stoddartsville, PAUSGS gauge · Pennsylvania · 161 ft³/s65°F53 mi9 hrs 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.