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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

1,325 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (2 hrs ago).

Clear location
  • Cold · below 60°F · 218
  • Cool · 60–69°F · 484
  • Comfortable · 70–86°F · 545
  • Warm · above 86°F · 78
  • 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. CHOPTANK RIVER NEAR GREENSBORO, MDUSGS gauge · Maryland · 81 ft³/s
    74°F20 mi2 hrs ago
  2. Maurice River at Bivalve NJUSGS gauge · New Jersey
    79°F28 mi2 hrs ago
  3. 090089-- Oyster Lab 4 ObsUSGS gauge · New Jersey
    58°F28 mi2 hrs ago
  4. Cape May Harbor at Cape May NJUSGS gauge · New Jersey
    75°F29 mi2 hrs ago
  5. Cohansey River at Greenwich NJUSGS gauge · New Jersey
    80°F30 mi2 hrs ago
  6. Maurice R at Mauricetown NJUSGS gauge · New Jersey
    79°F32 mi2 hrs ago
  7. Great Channel at Stone Harbor NJUSGS gauge · New Jersey
    78°F36 mi3 hrs ago
  8. Manumuskin River at Cumberland NJUSGS gauge · New Jersey · 47 ft³/s
    69°F38 mi2 hrs ago

Nearest swimmable spots

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

Silver Lake Park4.4(959)

Silver Lake Park

Park · Dover, Delaware

182 acres of woodsy green space with walking trails, a playground, picnic shelters & water access.

15 mi from your location

Savannah Beach4.7(4,766)

Savannah Beach

Public beach · Lewes, Delaware

Public beach with shallow water & restrooms, attracting families for swimming, fishing & boating.

20 mi from your location

Sunset Beach4.8(5,921)

Sunset Beach

Tourist attraction · Cape May, New Jersey

Scenic beach with the submerged ruins of the concrete SS Atlantus & quartz crystals in the sand.

24 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.