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Live · updated daily from USGS

Swimmable water near you

2,138 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (5 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 932
  • 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. Delaware River at Montague NJUSGS gauge · Pennsylvania · 3,580 ft³/s
    71°F12 mi5 hrs ago
  2. DELAWARE RIVER AT PORT JERVIS NYUSGS gauge · Pennsylvania · 3,130 ft³/s
    71°F17 mi5 hrs ago
  3. Pequannock River at Oak Ridge NJUSGS gauge · New Jersey · 6 ft³/s
    59°F18 mi5 hrs ago
  4. DELAWARE RIVER AT POND EDDY NYUSGS gauge · Pennsylvania
    71°F21 mi5 hrs ago
  5. Brodhead Creek near Analomink, PAUSGS gauge · Pennsylvania · 89 ft³/s
    63°F21 mi5 hrs ago
  6. Shohola Creek near Walker Lake, PAUSGS gauge · Pennsylvania · 23 ft³/s
    68°F22 mi5 hrs ago
  7. MONGAUP RIVER NEAR MONGAUP NYUSGS gauge · New York · 203 ft³/s
    70°F22 mi1 day ago
  8. Pequest River at Pequest NJUSGS gauge · New Jersey · 235 ft³/s
    67°F23 mi5 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.

10 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.

14 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.

16 mi from your location

Indian Lake4.8(38)

Indian Lake

Lake · Denville, New Jersey

This popular, 99-acre lake features 3 beaches with seasonal lifeguards, boating, fishing & swimming.

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.