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.
- ESCANABA RIVER AT CORNELL, MIUSGS gauge · Michigan · 211 ft³/s65°F34 mi10 hrs ago
- M BR ESCANABA R AT US HWY 41 NR HUMBOLDT, MIUSGS gauge · Michigan62°F63 mi10 hrs ago
- MIDDLE BRANCH ESCANABA RIVER AT HUMBOLDT, MIUSGS gauge · Michigan · 10 ft³/s60°F64 mi10 hrs ago
- EAST BRANCH SALMON TROUT RIVER NEAR DODGE CITY, MIUSGS gauge · Michigan · 13 ft³/s53°F71 mi10 hrs ago
- SALMON TROUT RIVER NEAR BIG BAY, MIUSGS gauge · Michigan · 4 ft³/s55°F72 mi11 hrs ago
- POPPLE RIVER NEAR FENCE, WIUSGS gauge · Wisconsin · 27 ft³/s65°F93 mi10 hrs ago
- FALLS RIVER NEAR L'ANSE, MIUSGS gauge · Michigan · 23 ft³/s58°F94 mi10 hrs ago
- PESHTIGO RIVER AT PESHTIGO, WIUSGS gauge · Wisconsin · 407 ft³/s75°F96 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.