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Live · updated daily from USGS

Swimmable water near you

1,324 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (5 hrs ago).

Clear location
  • Cold · below 60°F · 218
  • Cool · 60–69°F · 484
  • Comfortable · 70–86°F · 544
  • 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.

  1. DELAWARE RIVER AT PORT JERVIS NYUSGS gauge · Pennsylvania · 3,040 ft³/s
    71°F6.4 mi6 hrs ago
  2. Delaware River at Montague NJUSGS gauge · Pennsylvania · 3,410 ft³/s
    72°F6.8 mi6 hrs ago
  3. NEVERSINK RIVER AT GODEFFROY NYUSGS gauge · New York · 374 ft³/s
    67°F12 mi6 hrs ago
  4. MONGAUP RIVER NEAR MONGAUP NYUSGS gauge · New York · 196 ft³/s
    71°F13 mi6 hrs ago
  5. DELAWARE RIVER AT POND EDDY NYUSGS gauge · Pennsylvania
    71°F13 mi6 hrs ago
  6. BASHER KILL BLW BASHAKILL MARSH AT WESTBROOKVILLEUSGS gauge · New York · 64 ft³/s
    72°F16 mi6 hrs ago
  7. Shohola Creek near Walker Lake, PAUSGS gauge · Pennsylvania · 23 ft³/s
    69°F18 mi6 hrs ago
  8. DELAWARE RIVER AT BARRYVILLE NYUSGS gauge · Pennsylvania · 2,000 ft³/s
    69°F18 mi6 hrs ago

Nearest swimmable spots

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

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.

7.5 mi from your location

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.

9.0 mi from your location

Lake Hopatcong4.6(319)

Lake Hopatcong

Lake · New Jersey

Bustling recreational lake for boating, water skiing & swimming, with waterfront eateries & bars.

23 mi from your location

Wanaque Reservoir4.5(24)

Wanaque Reservoir

Lake · New Jersey

Constructed in 1928, this manmade lake is 6.6 miles in length & is surrounded by dense forests.

25 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.