Live · updated daily from USGS
Swimmable water near you
1,325 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (3 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 545
- 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°F166 mi4 hrs ago
- THIRD CK NR CRYSTAL BAY, NVUSGS gauge · Nevada · 1 ft³/s57°F167 mi3 hrs ago
- INCLINE CK NR CRYSTAL BAY, NVUSGS gauge · Nevada · 3 ft³/s55°F167 mi3 hrs ago
- TRUCKEE RV NR SPARKS, NVUSGS gauge · Nevada · 292 ft³/s67°F182 mi3 hrs ago
- TRUCKEE RV AT CLARK, NVUSGS gauge · Nevada72°F196 mi4 hrs ago
- TRUCKEE RV BLW DERBY DAM NR WADSWORTH, NVUSGS gauge · Nevada · 196 ft³/s74°F198 mi3 hrs ago
- TRUCKEE RV NR NIXON, NVUSGS gauge · Nevada · 169 ft³/s75°F207 mi3 hrs ago
- WALKER RV NR WABUSKA, NVUSGS gauge · Nevada · 21 ft³/s70°F211 mi3 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.4(1,009)Clear Lake State Park
Forested lakefront park providing camping, boating & fishing, plus self-led & interpretative trails.
17 mi from your location
4.3(531)Healdsburg Veterans Memorial Beach
This sandy shore on the Russian River has lifeguards & picnic spots, plus restrooms & a parking lot.
17 mi from your location
4.6(34)Mother's Beach
Secluded, rocky neighborhood beach set along the shoreline of the Russian River.
22 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.


