Live · updated daily from USGS
Swimmable water near you
1,326 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (22 mins ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 546
- 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.
- Raccoon Creek near Granville OHUSGS gauge · Ohio · 145 ft³/s68°F23 mi1 hr ago
- Hoover Reservoir at Central College OHUSGS gauge · Ohio77°F41 mi32 mins ago
- Big Walnut Creek at Sunbury OHUSGS gauge · Ohio · 42 ft³/s69°F42 mi32 mins ago
- Beaver Creek above Senecaville Lake OHUSGS gauge · Ohio65°F43 mi47 mins ago
- South Fork above Senecaville Lake OHUSGS gauge · Ohio66°F43 mi32 mins ago
- Seneca Fork above Senecaville Lake OHUSGS gauge · Ohio65°F44 mi1 hr ago
- Alum Creek at Africa OHUSGS gauge · Ohio · 717 ft³/s77°F46 mi1 hr ago
- Scioto River above Shadeville OHUSGS gauge · Ohio73°F49 mi47 mins 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.

