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 (8 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.
- BLACK CREEK AT DARLING RD NEAR HARLAN, INUSGS gauge · Indiana68°F26 mi9 hrs ago
- BLACK CREEK AT BRUSH COLLEGE RD NEAR HARLAN, INUSGS gauge · Indiana · 1 ft³/s69°F27 mi9 hrs ago
- WABASH RIVER AT HUNTINGTON, INUSGS gauge · Indiana73°F33 mi9 hrs ago
- Maumee River at Antwerp OHUSGS gauge · Ohio · 2,270 ft³/s75°F34 mi9 hrs ago
- SALAMONIE RIVER AT DORA, INUSGS gauge · Indiana70°F39 mi9 hrs ago
- SPRING CREEK AT RAMBADT ROAD NEAR CENTREVILLE, MIUSGS gauge · Michigan · 7 ft³/s68°F43 mi10 hrs ago
- PORTAGE RIVER AT FIFTH AVENUE AT THREE RIVERS, MIUSGS gauge · Michigan · 68 ft³/s72°F45 mi9 hrs ago
- LITTLE PORTAGE CR AT LANE ST AT MENDON, MIUSGS gauge · Michigan · 9 ft³/s65°F47 mi9 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.