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 (8 hrs ago).
- 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.
- CEDAR RIVER AT POWERPLANT AT CEDAR FALLS, WAUSGS gauge · Washington · 40 ft³/s66°F7.7 mi9 hrs ago
- CANYON CREEK NEAR CEDAR FALLS, WAUSGS gauge · Washington · 9 ft³/s62°F7.7 mi9 hrs ago
- CEDAR RIVER AT CEDAR FALLS, WAUSGS gauge · Washington · 33 ft³/s66°F7.8 mi9 hrs ago
- TAYLOR CREEK NEAR SELLECK, WAUSGS gauge · Washington · 20 ft³/s49°F10 mi9 hrs ago
- SF TOLT RIVER BL REGULATING BASIN NR CARNATION, WAUSGS gauge · Washington · 70 ft³/s56°F12 mi9 hrs ago
- TOLT RIVER NEAR CARNATION, WAUSGS gauge · Washington · 111 ft³/s57°F12 mi9 hrs ago
- SOUTH FORK TOLT RIVER NEAR CARNATION, WAUSGS gauge · Washington · 65 ft³/s55°F12 mi9 hrs ago
- CEDAR RIVER NEAR LANDSBURG, WAUSGS gauge · Washington · 250 ft³/s54°F12 mi9 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(5,044)Lake Sammamish State Park
512-acre park with ample waterfront access & boat launch, plus seasonal kayak rentals & picnicking.
13 mi from your location
4.7(143)Lake Sammamish
Parkland surrounds this freshwater lake with boating, waterskiing, picnic shelters & hiking trails.
15 mi from your location
4.8(238)Snow Lake
Panoramic alpine lake mirroring its mountain backdrop with a 7-mile-long hiking trail & campsites.
16 mi from your location
4.5(2,632)Lake Meridian Park
City park with a playground, picnic shelters & lighted paths, plus swimming & a boat launch.
20 mi from your location
4.3(123)Lake Meridian
Scenic lake offering a beach with a designated swimming area, plus trout fishing & a boat launch.
20 mi from your location
4.5(800)Clark Lake Park
A scenic 130-acre park around a lake offering fishing, walking trails & public art displays.
21 mi from your location
4.7(357)Lake Washington Boulevard Park
This 117-mile lakefront area is known for its bicycle trail & fishing opportunities.
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.


