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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 22, 2026 (9 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. CONNETQUOT RIVER DISTRIBUTARY NEAR OAKDALE NYUSGS gauge · New York
    65°F3.7 mi1 day ago
  2. NISSEQUOGUE RIVER AT LANDING AVE AT SMITHTOWN, NYUSGS gauge · New York
    66°F11 mi1 day ago
  3. SAMPAWAMS CREEK AT BABYLON NYUSGS gauge · New York · 35 ft³/s
    68°F12 mi1 day ago
  4. CARLLS RIVER AT BABYLON NYUSGS gauge · New York · 114 ft³/s
    70°F13 mi1 day ago
  5. FLAX POND AT OLD FIELD NYUSGS gauge · New York
    73°F17 mi1 day ago
  6. WEST HARBOR AT OYSTER BAY NWR AT BAYVILLE NYUSGS gauge · New York
    76°F27 mi1 day ago
  7. PECONIC RIVER AT COUNTY HWY 105 AT RIVERHEAD NYUSGS gauge · New York
    81°F27 mi1 day ago
  8. REYNOLDS CHANNEL AT POINT LOOKOUT NYUSGS gauge · New York
    75°F27 mi1 day ago

Nearest swimmable spots

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

Cupsogue Beach County Park4.7(1,300)

Cupsogue Beach County Park

Park · Westhampton Beach, New York

Beachfront park featuring lifeguard-supervised swimming, bass fishing, camping & a concession stand.

19 mi from your location

Cold Spring Harbor State Park4.7(1,698)

Cold Spring Harbor State Park

State park · Cold Spring Harbor, New York
Camping nearby

Hilly 40-acre park with harbor vistas, hardwood forest & mountain laurel plus seasonal songbirds.

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.