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 (23 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.
- SAVANNAH RIVER NEAR EVANS, GAUSGS gauge · Georgia71°F7.1 mi1 day ago
- 88°F10 mi1 day ago
- THURMOND LAKE NEAR PLUM BRANCH, SCUSGS gauge · South Carolina89°F14 mi1 day ago
- MCTIER CREEK RD 209 NEAR MONETTA, SCUSGS gauge · South Carolina · 1 ft³/s79°F34 mi1 day ago
- RUSSELL LAKE ABOVE CALHOUN FALLS, SCUSGS gauge · South Carolina90°F38 mi1 day ago
- LITTLE SALUDA R NEAR PROSPERITY, SCUSGS gauge · South Carolina90°F45 mi1 day ago
- SALUDA R NEAR PROSPERITY, SCUSGS gauge · South Carolina91°F46 mi1 day ago
- SALUDA RIVER BELOW LK MURRAY DAM NR COLUMBIA, SCUSGS gauge · South Carolina · 801 ft³/s57°F62 mi23 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.