Live · updated daily from USGS
Swimmable water near you
1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (10 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 544
- Warm · above 86°F · 78
- 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.
- GLENBROOK CK AT GLENBROOK, NVUSGS gauge · Nevada · 0 ft³/s54°F32 mi10 hrs ago
- THIRD CK NR CRYSTAL BAY, NVUSGS gauge · Nevada · 1 ft³/s57°F38 mi10 hrs ago
- INCLINE CK NR CRYSTAL BAY, NVUSGS gauge · Nevada · 3 ft³/s55°F38 mi10 hrs ago
- TRUCKEE RV NR SPARKS, NVUSGS gauge · Nevada · 292 ft³/s67°F59 mi10 hrs ago
- TRUCKEE RV AT CLARK, NVUSGS gauge · Nevada72°F71 mi10 hrs ago
- TRUCKEE RV BLW DERBY DAM NR WADSWORTH, NVUSGS gauge · Nevada · 196 ft³/s74°F74 mi10 hrs ago
- WALKER RV NR WABUSKA, NVUSGS gauge · Nevada · 21 ft³/s70°F75 mi10 hrs ago
- TRUCKEE RV NR NIXON, NVUSGS gauge · Nevada · 169 ft³/s75°F87 mi10 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.8(6,385)Emerald Bay State Park
Landmarked in 1994 for its glacier-carved granite, this park features panoramic views of the lake.
19 mi from your location
4.4(15)Echo Lake
Glacial lake in a picturesque mountain setting, used for fishing, swimming & recreational boating.
20 mi from your location
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.

