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 (16 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.
- ELK RIVER ABOVE FAYETTEVILLE, TNUSGS gauge · Tennessee · 269 ft³/s77°F48 mi16 hrs ago
- WF STONES R AT BLANTON RD MURFREESBORO, TNUSGS gauge · Tennessee81°F58 mi17 hrs ago
- HARPETH RIVER AT MCDANIEL, TNUSGS gauge · Tennessee · 4 ft³/s77°F67 mi16 hrs ago
- OBED RIVER AT ADAMS BRIDGE NEAR CROSSVILLE, TNUSGS gauge · Tennessee · 15 ft³/s75°F68 mi16 hrs ago
- HIWASSEE RIVER ABOVE RELIANCEUSGS gauge · Tennessee64°F69 mi16 hrs ago
- DADDYS CREEK NEAR HEBBERTSBURG, TNUSGS gauge · Tennessee · 13 ft³/s77°F70 mi17 hrs ago
- CUMBERLAND RIVER BELOW CORDELL HULL DAM, TNUSGS gauge · Tennessee70°F70 mi16 hrs ago
- COOSAWATTEE RIVER AT CARTERS, GAUSGS gauge · Georgia · 906 ft³/s78°F74 mi16 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.