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The Water Around Us
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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 21, 2026 (18 hrs ago).

Clear location
  • Cold · below 60°F · 375
  • Cool · 60–69°F · 594
  • Comfortable · 70–86°F · 938
  • Warm · above 86°F · 228
  • 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. McDonalds Branch in Byrne State Forest NJUSGS gauge · New Jersey · 1 ft³/s
    66°F7.4 mi19 hrs ago
  2. Greenwood Branch at New Lisbon NJUSGS gauge · New Jersey · 25 ft³/s
    71°F13 mi19 hrs ago
  3. North Branch Rancocas Creek at Pemberton NJUSGS gauge · New Jersey · 67 ft³/s
    75°F15 mi19 hrs ago
  4. Southwest Branch Rancocas Creek at Medford NJUSGS gauge · New Jersey
    76°F17 mi19 hrs ago
  5. Crosswicks Ck at Hockamik Rd near Cookstown NJUSGS gauge · New Jersey · 34 ft³/s
    73°F18 mi18 hrs ago
  6. Barnegat Bay near Waretown NJUSGS gauge · New Jersey
    78°F18 mi18 hrs ago
  7. NB Rancocas C at Iron Works Park at Mount Holly NJUSGS gauge · New Jersey
    73°F20 mi19 hrs ago
  8. Little Egg Inlet near Tuckerton NJUSGS gauge · New Jersey
    76°F22 mi18 hrs ago

Nearest swimmable spots

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

Atsion Lake4.6(270)

Atsion Lake

Lake · Shamong, New Jersey
Camping nearby

Boating, swimming & fishing are popular at this big lake, along with hiking & cross-country skiing.

11 mi from your location

Barnegat Lighthouse State Park4.8(4,669)

Barnegat Lighthouse State Park

State park · Barnegat Light, New Jersey
Dog-friendly

Scenic park with a maritime forest, trails & a lighthouse with panoramic views & a visitor center.

23 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.