Live · updated daily from USGS
Swimmable water near you
1,326 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (22 mins ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 546
- Warm · above 86°F · 78
- 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.
- SULTAN RIVER BELOW POWERPLANT NEAR SULTAN, WAUSGS gauge · Washington · 330 ft³/s56°F13 mi32 mins ago
- SULTAN RIVER BELOW DIVERSION DAM NEAR SULTAN, WAUSGS gauge · Washington · 108 ft³/s55°F14 mi32 mins ago
- TOLT RIVER NEAR CARNATION, WAUSGS gauge · Washington · 111 ft³/s55°F18 mi1 hr ago
- NORTH FORK TOLT RIVER NEAR CARNATION, WAUSGS gauge · Washington54°F19 mi1 hr ago
- SF TOLT RIVER BL REGULATING BASIN NR CARNATION, WAUSGS gauge · Washington · 69 ft³/s54°F19 mi1 hr ago
- NF TOLT RIVER ABOVE YELLOW CREEK NR CARNATION, WAUSGS gauge · Washington · 21 ft³/s53°F20 mi47 mins ago
- SKYKOMISH RIVER NEAR GOLD BAR, WAUSGS gauge · Washington · 359 ft³/s64°F20 mi47 mins ago
- SOUTH FORK SULTAN RIVER NEAR SULTAN, WAUSGS gauge · Washington · 5 ft³/s57°F22 mi1 hr ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(9,945)Green Lake Park
Recreation area with trails, beach & boathouse, plus tennis courts, baseball fields & indoor pool.
18 mi from your location
4.7(51)Green Lake
Freshwater lake offers swimming beaches, fishing sites, boat ramps & a recreational path.
19 mi from your location
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4.7(143)Lake Sammamish
Parkland surrounds this freshwater lake with boating, waterskiing, picnic shelters & hiking trails.
19 mi from your location
4.7(270)Lake Washington
The 2nd largest natural lake in Washington, this lake provides sport fishing opportunities.
20 mi from your location
4.8(189)Lake Union
Picturesque freshwater lake providing a popular boating spot & an annual wooden boat festival.
21 mi from your location
4.6(4,691)Lake Union Park
12-acre lakefront park with boat launch, model-boat pond, Center for Wooden Boats & spray features.
21 mi from your location
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4.2(2,054)Westlake Park
Centrally located shopping district sitting spot & town square with a play area & fountain.
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.