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 (12 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.
- ST. JOSEPH RIVER AT NILES, MIUSGS gauge · Michigan · 2,740 ft³/s75°F19 mi12 hrs ago
- DOWAGIAC CREEK AT DUTCH SETTLEMENT RD NR DOWAGIAC,USGS gauge · Michigan · 39 ft³/s65°F19 mi12 hrs ago
- PORTAGE RIVER AT FIFTH AVENUE AT THREE RIVERS, MIUSGS gauge · Michigan · 68 ft³/s72°F23 mi13 hrs ago
- OSBORN DRAIN AT DEWEY LAKE ST NR GLENWOOD, MIUSGS gauge · Michigan · 7 ft³/s62°F25 mi13 hrs ago
- SPRING CREEK AT RAMBADT ROAD NEAR CENTREVILLE, MIUSGS gauge · Michigan · 7 ft³/s68°F28 mi13 hrs ago
- LITTLE PORTAGE CR AT LANE ST AT MENDON, MIUSGS gauge · Michigan · 9 ft³/s65°F32 mi12 hrs ago
- YELLOW RIVER AT PLYMOUTH, INUSGS gauge · Indiana · 284 ft³/s71°F32 mi12 hrs ago
- YELLOW RIVER NEAR OAK GROVE, INUSGS gauge · Indiana · 445 ft³/s70°F41 mi13 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.