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 (11 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.
- WARE RIVER AT INTAKE WORKS NEAR BARRE, MAUSGS gauge · Massachusetts · 29 ft³/s71°F13 mi12 hrs ago
- QUINAPOXET RIVER AT CANADA MILLS NEAR HOLDEN, MAUSGS gauge · Massachusetts · 7 ft³/s70°F17 mi12 hrs ago
- GATES BROOK NEAR WEST BOYLSTON, MAUSGS gauge · Massachusetts · 3 ft³/s61°F18 mi12 hrs ago
- STILLWATER RIVER NEAR STERLING, MAUSGS gauge · Massachusetts · 6 ft³/s67°F20 mi12 hrs ago
- NASHUA RIVER, WATER STREET BRIDGE, AT CLINTON, MAUSGS gauge · Massachusetts · 45 ft³/s66°F25 mi12 hrs ago
- PONAGANSET RIVER AT RSVR OUTLET AT GLOCESTER, RIUSGS gauge · Rhode Island · 0 ft³/s72°F28 mi12 hrs ago
- WINSOR BROOK AT WINSOR RD NEAR SOUTH FOSTER, RIUSGS gauge · Rhode Island · 1 ft³/s65°F31 mi12 hrs ago
- CONNECTICUT RIVER AT THOMPSONVILLE, CTUSGS gauge · Connecticut · 5,990 ft³/s77°F32 mi12 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.