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 22, 2026 (11 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 929
- 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.
- MATTAPONI RIVER NEAR BEULAHVILLE, VAUSGS gauge · Virginia · 203 ft³/s79°F23 mi11 hrs ago
- DRAGON SWAMP AT MASCOT, VAUSGS gauge · Virginia · 12 ft³/s77°F33 mi11 hrs ago
- PAMUNKEY RIVER NEAR HANOVER, VAUSGS gauge · Virginia · 94 ft³/s79°F35 mi11 hrs ago
- RAPPAHANNOCK RIVER NEAR FREDERICKSBURG, VAUSGS gauge · Virginia · 653 ft³/s80°F40 mi11 hrs ago
- CHICKAHOMINY RIVER NEAR PROVIDENCE FORGE, VAUSGS gauge · Virginia · 209 ft³/s78°F47 mi12 hrs ago
- ACCOTINK CREEK AT KEENE MILL RD AT SPRINGFIELD, VAUSGS gauge · Virginia · 11 ft³/s77°F51 mi11 hrs ago
- ACCOTINK CREEK NEAR ANNANDALE, VAUSGS gauge · Virginia · 5 ft³/s75°F54 mi11 hrs ago
- Anacostia River nr Buzzard Point at Washington, DCUSGS gauge · 2,000 ft³/s83°F54 mi1 day 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.