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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 (21 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. Caillou Lake (Sister Lake) SW of Dulac, LAUSGS gauge · Louisiana
    89°F11 mi22 hrs ago
  2. Caillou Bay SW of Cocodrie, LAUSGS gauge · Louisiana
    89°F24 mi22 hrs ago
  3. Lower Atchafalaya River at Morgan City, LAUSGS gauge · Louisiana · 45,100 ft³/s
    89°F24 mi22 hrs ago
  4. Company Canal at Salt Barrier near Lockport, LAUSGS gauge · Louisiana
    91°F29 mi22 hrs ago
  5. Company Canal at Hwy 1 at Lockport, LAUSGS gauge · Louisiana
    91°F30 mi22 hrs ago
  6. Bayou Lafourche at Lockport, LAUSGS gauge · Louisiana
    90°F31 mi22 hrs ago
  7. Bayou Perot at Point Legard near Cutoff, LAUSGS gauge · Louisiana
    88°F50 mi22 hrs ago
  8. Little Lake near Bay Dosgris E of Galliano, LAUSGS gauge · Louisiana
    89°F52 mi22 hrs ago

Nearest swimmable spots

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

No rated, photographed swim spots within 25 miles of this point yet. The nearest sensor readings above still tell you what the water is doing — or search any river, lake or beach by name.
Search a spot →

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.