Live · updated daily from USGS
Swimmable water near you
1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (8 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 544
- 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.
- West Branch Mahoning River at Wayland OHUSGS gauge · Ohio · 34 ft³/s67°F8.9 mi8 hrs ago
- West Branch Mahoning River near Ravenna OHUSGS gauge · Ohio · 84 ft³/s67°F9.1 mi9 hrs ago
- Mahoning River at Leavittsburg OHUSGS gauge · Ohio · 760 ft³/s70°F13 mi8 hrs ago
- Mahoning River at Pricetown OHUSGS gauge · Ohio · 274 ft³/s76°F13 mi9 hrs ago
- Mahoning River near U.S. Route 422 at Warren OHUSGS gauge · Ohio71°F16 mi8 hrs ago
- Mahoning River bl Berlin Dam nr Berlin Center OHUSGS gauge · Ohio · 336 ft³/s74°F17 mi8 hrs ago
- Mosquito Creek bl Mosquito Ck Dam nr Cortland OHUSGS gauge · Ohio · 27 ft³/s76°F19 mi8 hrs ago
- Cuyahoga River at Jaite OHUSGS gauge · Ohio · 1,390 ft³/s70°F23 mi8 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.

