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 (9 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.
- Rays Br Juniata R bl Rays Dam nr Huntingdon, PAUSGS gauge · Pennsylvania · 418 ft³/s77°F25 mi9 hrs ago
- Swift Run at Brickcrafter Rd nr New Oxford, PAUSGS gauge · Pennsylvania · 0 ft³/s67°F37 mi9 hrs ago
- Fishing Creek at Goldsboro, PAUSGS gauge · Pennsylvania · 6 ft³/s66°F44 mi10 hrs ago
- West Conewago Creek near Manchester, PAUSGS gauge · Pennsylvania · 188 ft³/s73°F47 mi10 hrs ago
- Conewago Creek near Falmouth, PAUSGS gauge · Pennsylvania · 10 ft³/s69°F47 mi9 hrs ago
- Fishing Creek near Lamar, PAUSGS gauge · Pennsylvania · 70 ft³/s56°F49 mi9 hrs ago
- Swatara Creek near Palmyra, PAUSGS gauge · Pennsylvania · 271 ft³/s70°F50 mi9 hrs ago
- Codorus Creek near Saginaw, PAUSGS gauge · Pennsylvania · 167 ft³/s72°F51 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.