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Live · updated daily from USGS

Swimmable water near you

2,136 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (12 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • 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.

  1. CONNECTICUT RIVER AT THOMPSONVILLE, CTUSGS gauge · Connecticut · 5,990 ft³/s
    77°F5.4 mi13 hrs ago
  2. NORTH BRANCH PARK RIVER AT HARTFORD, CTUSGS gauge · Connecticut · 33 ft³/s
    69°F18 mi13 hrs ago
  3. WEST BRANCH FARMINGTON RIVER AT RIVERTON, CTUSGS gauge · Connecticut · 177 ft³/s
    50°F27 mi13 hrs ago
  4. CONNECTICUT RIVER AT MIDDLE HADDAM, CTUSGS gauge · Connecticut · 2,100 ft³/s
    78°F31 mi13 hrs ago
  5. WARE RIVER AT INTAKE WORKS NEAR BARRE, MAUSGS gauge · Massachusetts · 29 ft³/s
    71°F36 mi13 hrs ago
  6. EAST BRANCH EIGHTMILE RIVER NEAR NORTH LYME, CTUSGS gauge · Connecticut · 93 ft³/s
    67°F40 mi12 hrs ago
  7. PONAGANSET RIVER AT RSVR OUTLET AT GLOCESTER, RIUSGS gauge · Rhode Island · 0 ft³/s
    72°F40 mi13 hrs ago
  8. WINSOR BROOK AT WINSOR RD NEAR SOUTH FOSTER, RIUSGS gauge · Rhode Island · 1 ft³/s
    65°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.

Wethersfield Cove4.5(46)

Wethersfield Cove

Bay · Wethersfield, Connecticut

Tranquil inlet bay featuring a marina with a boat launch & slip rentals, fishing spots & park areas.

20 mi from your location

West Hartford Reservoir4.8(374)

West Hartford Reservoir

Park · West Hartford, Connecticut

Recreation area offering forested walking trails around a working water reservoir.

22 mi from your location

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.