Live · updated daily from USGS
Swimmable water near you
2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (19 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 594
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 228
- 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.
- SF EEL R NR BRANSCOMB CAUSGS gauge · California · 0 ft³/s66°F10 mi20 hrs ago
- ELDER C NR BRANSCOMB CAUSGS gauge · California · 1 ft³/s62°F11 mi20 hrs ago
- EEL R A FORT SEWARD CAUSGS gauge · California · 27 ft³/s75°F43 mi20 hrs ago
- EF RUSSIAN R NR CALPELLA CAUSGS gauge · California · 32 ft³/s69°F43 mi20 hrs ago
- RUSSIAN R NR HOPLAND CAUSGS gauge · California · 121 ft³/s59°F53 mi20 hrs ago
- RUSSIAN R NR CLOVERDALE CAUSGS gauge · California · 120 ft³/s65°F64 mi20 hrs ago
- ELK R NR FALK CAUSGS gauge · California59°F78 mi20 hrs ago
- DRY C BLW LAMBERT BR NR GEYSERVILLE CAUSGS gauge · California · 92 ft³/s57°F80 mi20 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(388)Jug Handle Beach
Scenic preserve featuring a beach area, forests & a ecological trail with layered rock formations.
16 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.