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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 22, 2026 (12 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 929
  • 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. SONOMA CREEK A KENWOOD CAUSGS gauge · California · 0 ft³/s
    61°F12 mi1 day ago
  2. RUSSIAN R A JIMTOWN CAUSGS gauge · California · 104 ft³/s
    69°F14 mi1 day ago
  3. 009N009W02F001MUSGS gauge · California
    63°F14 mi1 day ago
  4. RUSSIAN R A DIGGER BEND NR HEALDSBURG CAUSGS gauge · California · 100 ft³/s
    71°F15 mi1 day ago
  5. DRY C BLW LAMBERT BR NR GEYSERVILLE CAUSGS gauge · California · 92 ft³/s
    57°F19 mi1 day ago
  6. RUSSIAN R A HACIENDA BRIDGE NR GUERNEVILLE CAUSGS gauge · California · 101 ft³/s
    71°F19 mi1 day ago
  7. RUSSIAN R NR CLOVERDALE CAUSGS gauge · California · 120 ft³/s
    65°F32 mi1 day ago
  8. FIRST MALLARD BRANCH NR FAIRFIELD CAUSGS gauge · California · 192 ft³/s
    69°F41 mi1 day ago

Nearest swimmable spots

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

Healdsburg Veterans Memorial Beach4.3(531)

Healdsburg Veterans Memorial Beach

Park · Healdsburg, California
Dog-friendly

This sandy shore on the Russian River has lifeguards & picnic spots, plus restrooms & a parking lot.

15 mi from your location

Mother's Beach4.6(34)

Mother's Beach

Beach · California
Camping nearby

Secluded, rocky neighborhood beach set along the shoreline of the Russian River.

19 mi from your location

Sunset Beach River Park4.5(384)

Sunset Beach River Park

Park · Forestville, California
Camping nearby

Wooded park with water access offering paddle sports, picnic spots & abundant wildlife.

20 mi from your location

Russian River4.3(567)

Russian River

River · Guerneville, California
Camping nearbyRedwood ForestsWine Country

Scenic river winding through redwood forests and wine country, offering swimming holes, kayaking, canoeing, and beach areas.

Swimming Holes · Kayak Rentals · Beaches · Camping

23 mi from your location

Johnson's Beach4.3(1,115)

Johnson's Beach

Tourist attraction · Guerneville, California
Camping nearby

A Russian River tradition, Johnson’s Beach is a favorite summer spot for locals and visitors alike.

23 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.