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 21, 2026 (9 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 595
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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.
- WALKER RV AT LATERAL 2-A SIPHON NR SCHURZ, NVUSGS gauge · Nevada · 3 ft³/s72°F26 mi9 hrs ago
- WALKER RV NR WABUSKA, NVUSGS gauge · Nevada · 26 ft³/s70°F34 mi9 hrs ago
- WALKER LAKE 4 NORTH NDOWUSGS gauge · Nevada76°F35 mi10 hrs ago
- WALKER LAKE 3 CENTER NDOWUSGS gauge · Nevada74°F38 mi10 hrs ago
- TRUCKEE RV BLW DERBY DAM NR WADSWORTH, NVUSGS gauge · Nevada · 182 ft³/s74°F58 mi9 hrs ago
- TRUCKEE RV AT CLARK, NVUSGS gauge · Nevada73°F60 mi9 hrs ago
- TRUCKEE RV NR NIXON, NVUSGS gauge · Nevada · 172 ft³/s74°F61 mi9 hrs ago
- S TWIN RV NR ROUND MOUNTAIN, NVUSGS gauge · Nevada · 1 ft³/s55°F69 mi9 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.