Live · updated daily from USGS
Swimmable water near you
1,325 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (4 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 545
- 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.
- North Branch Rancocas Creek at Pemberton NJUSGS gauge · New Jersey · 67 ft³/s73°F3.9 mi4 hrs ago
- Greenwood Branch at New Lisbon NJUSGS gauge · New Jersey · 25 ft³/s70°F5.5 mi4 hrs ago
- 76°F5.8 mi4 hrs ago
- 73°F6.0 mi4 hrs ago
- McDonalds Branch in Byrne State Forest NJUSGS gauge · New Jersey · 1 ft³/s68°F12 mi4 hrs ago
- Crosswicks Ck at Hockamik Rd near Cookstown NJUSGS gauge · New Jersey · 6 ft³/s73°F13 mi4 hrs ago
- Rancocas Creek at Bridgeboro NJUSGS gauge · New Jersey · 5,930 ft³/s78°F14 mi4 hrs ago
- South Branch Pennsauken Creek at Cherry Hill NJUSGS gauge · New Jersey · 60 ft³/s72°F15 mi4 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.6(270)Atsion Lake
Boating, swimming & fishing are popular at this big lake, along with hiking & cross-country skiing.
12 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.
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.
18 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.
18 mi from your location
4.5(625)Newton Lake Park
Pet-friendly neighborhood park with open fields & running/walking trails around a lake.
18 mi from your location
4.7(1,283)Race Street Pier
Waterfront promenade with a lawn & soaring bridge views drawing joggers, sunbathers & picnickers.
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.


