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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 (20 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. CATAWBA RIVER DNSTRM DECK MTN IS DAM NR MTN IS, NCUSGS gauge · North Carolina
    87°F8.6 mi20 hrs ago
  2. CATAWBA R AT RR BRIDGE AB NC 73 AT COWANS FORD, NCUSGS gauge · North Carolina
    86°F15 mi20 hrs ago
  3. CATAWBA RIVER BL LAKE WYLIE DAM FEWELL ISLAND, SCUSGS gauge · South Carolina · 941 ft³/s
    84°F15 mi20 hrs ago
  4. CATAWBA RIVER BL LOOKOUT SHOALS DAM NR SHARON, NCUSGS gauge · North Carolina
    83°F36 mi20 hrs ago
  5. CATAWBA RIVER AT NC HIGHWAY 16 NR MILLERSVILLE, NCUSGS gauge · North Carolina · 146 ft³/s
    84°F41 mi20 hrs ago
  6. CATAWBA RIVER AT RHODHISS, NCUSGS gauge · North Carolina
    77°F43 mi20 hrs ago
  7. CATAWBA RIVER AT GREAT FALLS, SCUSGS gauge · South Carolina
    87°F45 mi20 hrs ago
  8. GREAT FALLS RESERVOIR TAILRACE BL GREAT FALLS, SCUSGS gauge · South Carolina
    89°F47 mi20 hrs ago

Nearest swimmable spots

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

Lake Wylie4.5(177)

Lake Wylie

Lake · South Carolina
Camping nearby

Big reservoir on the Catawba River with fishing, boating & parks with swimming & picnic areas.

9.4 mi from your location

Ramsey Creek Park4.4(2,465)

Ramsey Creek Park

Park · Cornelius, North Carolina

Lakefront park for boating, fishing & picnicking, plus sand volleyball, horseshoes & a playground.

19 mi from your location

Rock Hill River Park4.6(241)

Rock Hill River Park

Park · Rock Hill, South Carolina

Natural parkland ranging across 70 acres along the Catawba River, with trails & a boat launch.

20 mi from your location

Lake Norman4.6(648)

Lake Norman

Lake · North Carolina

State's largest man-made lake & home to a diverse fish population, with a visitor center & marina.

21 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.