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).
- 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.
- Wissahickon Creek at Mouth, Philadelphia, PAUSGS gauge · Pennsylvania · 1,000 ft³/s71°F4.6 mi11 hrs ago
- Wissahickon Creek at Fort Washington, PAUSGS gauge · Pennsylvania · 215 ft³/s70°F5.2 mi11 hrs ago
- Cobbs Cr at U.S. Hghwy No. 1 at Philadelphia, PAUSGS gauge · Pennsylvania · 3 ft³/s69°F5.9 mi11 hrs ago
- Schuylkill River at Norristown, PAUSGS gauge · Pennsylvania · 3,140 ft³/s76°F6.0 mi11 hrs ago
- Stony Creek at Sterigere Street at Norristown, PAUSGS gauge · Pennsylvania · 90 ft³/s69°F6.1 mi11 hrs ago
- Schuylkill River at Philadelphia, PAUSGS gauge · Pennsylvania · 5,470 ft³/s77°F7.7 mi11 hrs ago
- Cobbs Creek at Mt. Moriah Cemetery, PhiladelphiaUSGS gauge · Pennsylvania · 22 ft³/s75°F9.0 mi11 hrs ago
- Darby Creek near Darby, PAUSGS gauge · Pennsylvania · 70 ft³/s71°F9.1 mi11 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.8(1,846)Schuylkill River Park
This park runs along the river & offers a playground, paved paths, sports areas, a pool & a dog run.
9.0 mi from your location
4.7(1,283)Race Street Pier
Waterfront promenade with a lawn & soaring bridge views drawing joggers, sunbathers & picnickers.
10 mi from your location
4.7(3,310)Ridley Creek State Park
Green oasis of woodlands & meadows offering hiking, fishing & picnicking from sunrise to sunset.
12 mi from your location
4.5(1,090)Palmyra Cove Nature Park
250-acre riverfront park features ponds, trails & scenic viewpoints, plus an environmental center.
13 mi from your location
4.6(1,160)Cooper River Park
Boat launch, picnic areas, mini-golf, bike paths & athletic fields in a scenic, riverside setting.
15 mi from your location
4.5(625)Newton Lake Park
Pet-friendly neighborhood park with open fields & running/walking trails around a lake.
15 mi from your location
Lake Galena
Reservoir with an 8-mi. perimeter, edged by park & hiking, biking & equestrian trails.
18 mi from your location
4.5(405)Strawbridge Lake Park
70-acre park featuring an artificial lake with boat launches, a playground, picnic tables & more.
18 mi from your location
4.7(1,985)Washington Lake Park
Green space with an outdoor amphitheater, skate park, dog park & golf course, plus sports fields.
24 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.


