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 (10 hrs ago).
- 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.
- Swatara Creek near Palmyra, PAUSGS gauge · Pennsylvania · 271 ft³/s70°F20 mi10 hrs ago
- Susquehanna River at Danville, PAUSGS gauge · Pennsylvania · 5,550 ft³/s75°F24 mi10 hrs ago
- Tulpehocken Creek near Bernville, PAUSGS gauge · Pennsylvania · 36 ft³/s68°F25 mi10 hrs ago
- Little Conewago Crk, Gingrich Rd at Upper Lawn PAUSGS gauge · Pennsylvania · 1 ft³/s65°F27 mi10 hrs ago
- Hammer Creek at Obie Rd nr Schafferstown, PAUSGS gauge · Pennsylvania · 6 ft³/s59°F27 mi10 hrs ago
- Conewago Creek near Bellaire, PAUSGS gauge · Pennsylvania · 5 ft³/s67°F29 mi11 hrs ago
- Conewago Creek near Falmouth, PAUSGS gauge · Pennsylvania · 10 ft³/s69°F32 mi10 hrs ago
- Fishing Creek at Goldsboro, PAUSGS gauge · Pennsylvania · 6 ft³/s66°F33 mi11 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.