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 21, 2026 (15 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 594
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 228
- 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.
- Brushy Fork above Clendening Lake OHUSGS gauge · Ohio68°F12 mi15 hrs ago
- Standingstone Fork above Tappan Lake OHUSGS gauge · Ohio67°F15 mi15 hrs ago
- Beaverdam Run above Tappan Lake OHUSGS gauge · Ohio65°F15 mi15 hrs ago
- Clear Fork above Tappan Lake OHUSGS gauge · Ohio68°F16 mi15 hrs ago
- Stillwater Creek above Piedmont Lake OHUSGS gauge · Ohio69°F17 mi15 hrs ago
- McGuire Creek above Leesville Lake OHUSGS gauge · Ohio70°F20 mi15 hrs ago
- North Fork McGuire Creek near Carrollton OHUSGS gauge · Ohio65°F24 mi15 hrs ago
- Unnamed Tributary near Dellroy OHUSGS gauge · Ohio62°F24 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.