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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 (13 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. MONGAUP RIVER NEAR MONGAUP NYUSGS gauge · New York · 203 ft³/s
    70°F0.8 mi1 day ago
  2. DELAWARE RIVER AT POND EDDY NYUSGS gauge · Pennsylvania
    71°F3.2 mi14 hrs ago
  3. DELAWARE RIVER AT PORT JERVIS NYUSGS gauge · Pennsylvania · 3,130 ft³/s
    71°F6.4 mi13 hrs ago
  4. DELAWARE RIVER AT BARRYVILLE NYUSGS gauge · Pennsylvania · 2,100 ft³/s
    69°F8.1 mi14 hrs ago
  5. MONGAUP R BELOW SWINGING BRIDGE RESERVOIR NYUSGS gauge · New York · 116 ft³/s
    68°F8.2 mi1 day ago
  6. NEVERSINK RIVER AT GODEFFROY NYUSGS gauge · New York · 528 ft³/s
    64°F8.2 mi1 day ago
  7. Shohola Creek near Walker Lake, PAUSGS gauge · Pennsylvania · 23 ft³/s
    68°F8.4 mi13 hrs ago
  8. Delaware River at Montague NJUSGS gauge · Pennsylvania · 3,580 ft³/s
    71°F9.9 mi13 hrs ago

Nearest swimmable spots

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

Raymondskill Falls4.8(1,313)

Raymondskill Falls

Waterfall · Milford, Pennsylvania

The tallest waterfall in Pennsylvania at roughly 150 feet, Raymondskill Falls is a stunning three-tiered cascade in the Delaware Water Gap National Recreation Area near Milford. A short third-of-a-mile trail winds through a hemlock ravine to two viewing platforms — one at the top and another below the upper two tiers. A more ambitious 3.1-mile loop combines the falls with Hackers Falls and a Cliff Trail offering views of the Delaware River. Free parking with composting toilets available.

12 mi from your location

Upper Delaware Scenic and Recreational River4.8(1,563)

Upper Delaware Scenic and Recreational River

Scenic spot · Beach Lake, Pennsylvania
Camping nearby

Scenic river park with a self-guided museum, fishing, hiking trails & public access for boats.

19 mi from your location

Wallkill River National Wildlife Refuge4.7(378)

Wallkill River National Wildlife Refuge

Tourist attraction · Sussex, New Jersey

Wildlife habitat known for its diversity of birds with hunting, fishing, trails & learning programs.

20 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.