Live · updated daily from USGS
Swimmable water near you
2,136 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (6 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 930
- 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.
- Jacobs Well Spg nr Wimberley, TXUSGS gauge · Texas · 0 ft³/s70°F52 mi7 hrs ago
- AY-68-28-211 (Shavano Park at Fawn Drive)USGS gauge · Texas72°F61 mi7 hrs ago
- AY-68-29-112 (Donella)USGS gauge · Texas73°F62 mi6 hrs ago
- AY-68-27-610 (Parkwood Park)USGS gauge · Texas72°F62 mi7 hrs ago
- Barton Spgs at Austin, TXUSGS gauge · Texas · 22 ft³/s72°F66 mi7 hrs ago
- AY-68-36-132 (Z DED)USGS gauge · Texas72°F66 mi7 hrs ago
- Brushy Ck at Red Bud Ln nr Round Rock, TXUSGS gauge · Texas86°F75 mi7 hrs ago
- Frio Rv at Concan, TXUSGS gauge · Texas · 123 ft³/s82°F82 mi6 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.