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Live · updated daily from USGS

Swimmable water near you

2,135 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (1 day ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • 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°F8.1 mi1 day ago
  2. WEST BRANCH FARMINGTON RIVER AT RIVERTON, CTUSGS gauge · Connecticut · 177 ft³/s
    50°F21 mi1 day ago
  3. NORTH BRANCH PARK RIVER AT HARTFORD, CTUSGS gauge · Connecticut · 33 ft³/s
    69°F22 mi1 day ago
  4. WARE RIVER AT INTAKE WORKS NEAR BARRE, MAUSGS gauge · Massachusetts · 29 ft³/s
    71°F36 mi1 day ago
  5. CONNECTICUT RIVER AT MIDDLE HADDAM, CTUSGS gauge · Connecticut · 2,100 ft³/s
    78°F39 mi1 day ago
  6. CONNECTICUT RIVER NEAR NORTHFIELD, MAUSGS gauge · Massachusetts · 5,880 ft³/s
    78°F41 mi1 day ago
  7. QUINAPOXET RIVER AT CANADA MILLS NEAR HOLDEN, MAUSGS gauge · Massachusetts · 7 ft³/s
    70°F46 mi1 day ago
  8. GATES BROOK NEAR WEST BOYLSTON, MAUSGS gauge · Massachusetts · 3 ft³/s
    61°F48 mi1 day ago

Nearest swimmable spots

Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.

Otis Reservoir4.7(34)

Otis Reservoir

Lake · Otis, Massachusetts

This 1,085-acre reservoir offers recreational activities, including water-skiing & fishing.

21 mi from your location

Mill River Recreation Area4.6(322)

Mill River Recreation Area

Park · Amherst, Massachusetts

Park with basketball/tennis courts, a toddlers' play area & pool, plus trails, picnic tables & BBQs.

22 mi from your location

Puffers Pond4.5(530)

Puffers Pond

Park · Amherst, Massachusetts

Swimming, fishing & boating are popular in this 11-acre pond with a perimeter trail & beaches.

23 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.