Live · updated daily from USGS
Swimmable water near you
2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (5 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 931
- 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.
- Nueces Rv at Bluntzer, TXUSGS gauge · Texas · 44 ft³/s88°F64 mi6 hrs ago
- Nueces Rv nr Odem, TXUSGS gauge · Texas89°F73 mi6 hrs ago
- Rincon Bayou Channel nr Odem, TXUSGS gauge · Texas82°F74 mi6 hrs ago
- Medina Rv nr Somerset, TXUSGS gauge · Texas · 9 ft³/s85°F82 mi5 hrs ago
- San Antonio Rv nr Elmendorf, TXUSGS gauge · Texas · 133 ft³/s87°F83 mi6 hrs ago
- Medina Rv at San Antonio, TXUSGS gauge · Texas · 60 ft³/s86°F83 mi6 hrs ago
- San Antonio Rv at SH 72 nr Runge, TXUSGS gauge · Texas · 152 ft³/s87°F84 mi6 hrs ago
- San Antonio Rv at Goliad, TXUSGS gauge · Texas · 169 ft³/s87°F95 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.