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.
- Kettle Creek at Cross Fork, PAUSGS gauge · Pennsylvania · 49 ft³/s62°F3.3 mi10 hrs ago
- Pine Creek bl L Pine Creek near Waterville, PAUSGS gauge · Pennsylvania · 222 ft³/s69°F28 mi10 hrs ago
- WB Susquehanna River at Karthaus, PAUSGS gauge · Pennsylvania · 6,810 ft³/s69°F32 mi10 hrs ago
- Bald Eagle Creek at Blanchard, PAUSGS gauge · Pennsylvania · 2,190 ft³/s74°F32 mi10 hrs ago
- Allegheny River at Port Allegany, PAUSGS gauge · Pennsylvania · 147 ft³/s63°F35 mi10 hrs ago
- Fishing Creek near Lamar, PAUSGS gauge · Pennsylvania · 80 ft³/s56°F39 mi10 hrs ago
- Tioga River near Mansfield, PAUSGS gauge · Pennsylvania · 35 ft³/s65°F41 mi10 hrs ago
- Sevenmile Run near Rasselas, PAUSGS gauge · Pennsylvania · 3 ft³/s58°F43 mi10 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.