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Live · updated daily from USGS

Swimmable water near you

2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 21, 2026 (10 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 595
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 229
  • 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. SF EEL R NR BRANSCOMB CAUSGS gauge · California · 0 ft³/s
    66°F7.8 mi11 hrs ago
  2. ELDER C NR BRANSCOMB CAUSGS gauge · California · 1 ft³/s
    62°F8.5 mi11 hrs ago
  3. EEL R A FORT SEWARD CAUSGS gauge · California · 27 ft³/s
    75°F38 mi11 hrs ago
  4. EF RUSSIAN R NR CALPELLA CAUSGS gauge · California · 32 ft³/s
    69°F46 mi11 hrs ago
  5. RUSSIAN R NR HOPLAND CAUSGS gauge · California · 121 ft³/s
    59°F57 mi11 hrs ago
  6. RUSSIAN R NR CLOVERDALE CAUSGS gauge · California · 120 ft³/s
    65°F68 mi11 hrs ago
  7. ELK R NR FALK CAUSGS gauge · California
    59°F73 mi11 hrs ago
  8. TRINITY R A DOUGLAS CITY CAUSGS gauge · California · 497 ft³/s
    59°F80 mi11 hrs ago

Nearest swimmable spots

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

Jug Handle Beach4.7(388)

Jug Handle Beach

State park · Fort Bragg, California
Camping nearby

Scenic preserve featuring a beach area, forests & a ecological trail with layered rock formations.

21 mi from your location

Caspar Headlands State Beach4.7(168)

Caspar Headlands State Beach

Park · Caspar, California
Camping nearby

A large number of activities are performed at this beach known for spotting migrating gray whales.

22 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.