Live · updated daily from USGS
Swimmable water near you
2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (9 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 595
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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.
- Cuyahoga River at Jaite OHUSGS gauge · Ohio · 347 ft³/s71°F8.7 mi9 hrs ago
- Cuyahoga River at Independence OHUSGS gauge · Ohio · 407 ft³/s68°F15 mi9 hrs ago
- Rocky River near Berea OHUSGS gauge · Ohio · 71 ft³/s69°F20 mi9 hrs ago
- Cuyahoga River at Rivergate Park at Cleveland OHUSGS gauge · Ohio79°F22 mi9 hrs ago
- West Branch Mahoning River near Ravenna OHUSGS gauge · Ohio · 5 ft³/s67°F24 mi9 hrs ago
- West Branch Mahoning River at Wayland OHUSGS gauge · Ohio · 32 ft³/s66°F30 mi9 hrs ago
- Mahoning River at Alliance OHUSGS gauge · Ohio71°F34 mi9 hrs ago
- Mahoning River bl Berlin Dam nr Berlin Center OHUSGS gauge · Ohio · 360 ft³/s73°F35 mi9 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.5(4,186)Portage Lakes State Park
A magnet for boaters, this park features 8 lakes as well as camping spots & picnic shelters.
15 mi from your location
4.9(2,278)Rocky River Nature Center
Educational center offering wildlife exhibits, a river observation deck & a bird-feeding station.
20 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.


