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The Water Around Us
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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 (18 hrs 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. CHOPTANK RIVER NEAR GREENSBORO, MDUSGS gauge · Maryland · 46 ft³/s
    76°F23 mi18 hrs ago
  2. Patuxent R at Gov Bridge Natural Area nr Bowie MDUSGS gauge · Maryland
    75°F27 mi18 hrs ago
  3. BUCKS BRANCH DS OF CONRAIL RD AT CANNON, DEUSGS gauge · Delaware
    71°F34 mi18 hrs ago
  4. FOSTER BRANCH NEAR JOPPATOWNE, MDUSGS gauge · Maryland · 1 ft³/s
    70°F37 mi18 hrs ago
  5. BEAVERDAM BRANCH AT HOUSTON, DEUSGS gauge · Delaware · 13 ft³/s
    71°F37 mi18 hrs ago
  6. NORTHEAST BRANCH ANACOSTIA RIVER AT RIVERDALE, MDUSGS gauge · Maryland · 69 ft³/s
    74°F39 mi18 hrs ago
  7. WATTS BRANCH AT WASHINGTON, DCUSGS gauge · 1 ft³/s
    73°F40 mi18 hrs ago
  8. ANACOSTIA RIVER AT KENILWORTH AT WASHINGTON, DCUSGS gauge · 768 ft³/s
    80°F41 mi18 hrs ago

Nearest swimmable spots

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

Lake Waterford Park4.6(1,610)

Lake Waterford Park

Park · Severna Park, Maryland

County park with a lake, offering recreational & natural areas, plus an accessible playing field.

25 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.