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 (15 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.
- Fishing Creek near Lamar, PAUSGS gauge · Pennsylvania · 70 ft³/s56°F32 mi15 hrs ago
- Rays Br Juniata R bl Rays Dam nr Huntingdon, PAUSGS gauge · Pennsylvania · 418 ft³/s77°F37 mi15 hrs ago
- Swatara Creek near Palmyra, PAUSGS gauge · Pennsylvania · 271 ft³/s70°F38 mi15 hrs ago
- Bald Eagle Creek at Blanchard, PAUSGS gauge · Pennsylvania · 871 ft³/s71°F39 mi16 hrs ago
- Fishing Creek at Goldsboro, PAUSGS gauge · Pennsylvania · 6 ft³/s66°F39 mi16 hrs ago
- Conewago Creek near Falmouth, PAUSGS gauge · Pennsylvania · 10 ft³/s69°F42 mi16 hrs ago
- West Conewago Creek near Manchester, PAUSGS gauge · Pennsylvania · 188 ft³/s73°F44 mi16 hrs ago
- Little Conewago Crk, Gingrich Rd at Upper Lawn PAUSGS gauge · Pennsylvania · 1 ft³/s65°F45 mi15 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.