Live · updated daily from USGS
Swimmable water near you
1,323 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (12 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 544
- Warm · above 86°F · 77
- 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.
- LAKE MARION NEAR PINEVILLE, SCUSGS gauge · South Carolina88°F15 mi12 hrs ago
- SANTEE RIVER NEAR PINEVILLE, SCUSGS gauge · South Carolina · 671 ft³/s87°F15 mi12 hrs ago
- SANTEE RIVER NEAR RUSSELLVILLE, SCUSGS gauge · South Carolina · 727 ft³/s87°F19 mi13 hrs ago
- REDIV. INTAKE CANAL NR ST. STEPHEN, SCUSGS gauge · South Carolina89°F23 mi12 hrs ago
- REDIV CANAL AT SANTEE RIVER NR ST STEPHEN, SCUSGS gauge · South Carolina · 143 ft³/s88°F24 mi12 hrs ago
- LAKE MOULTRIE TAILRACE CANAL AT MONCKS CORNER, SCUSGS gauge · South Carolina · 55 ft³/s86°F34 mi13 hrs ago
- 86°F42 mi13 hrs ago
- 86°F44 mi13 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.