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The Water Around Us
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Live · updated daily from USGS

Swimmable water near you

2,139 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (5 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 933
  • Warm · above 86°F · 215
  • 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. NATIONAL C NR MCCARTHY AKUSGS gauge · Alaska · 6 ft³/s
    41°F66 mi1 day ago
  2. GULKANA R AT SOURDOUGH AKUSGS gauge · Alaska · 946 ft³/s
    56°F91 mi1 day ago
  3. COPPER R AT MILLION DOLLAR BRIDGE NR CORDOVA AKUSGS gauge · Alaska · 184,000 ft³/s
    46°F140 mi1 day ago
  4. GLACIER R TRIB NR CORDOVA AKUSGS gauge · Alaska · 51 ft³/s
    47°F159 mi1 day ago
  5. WF OLSEN BAY C NR CORDOVA AKUSGS gauge · Alaska · 44 ft³/s
    48°F163 mi1 day ago
  6. SALCHA R NR SALCHAKET AKUSGS gauge · Alaska · 1,830 ft³/s
    55°F192 mi1 day ago
  7. CHENA R NR TWO RIVERS AKUSGS gauge · Alaska · 959 ft³/s
    49°F204 mi1 day ago
  8. MOOSE C NR PALMER AKUSGS gauge · Alaska · 201 ft³/s
    45°F212 mi1 day 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.