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Live · updated daily from USGS

Swimmable water near you

2,136 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (6 hrs ago).

Clear location
  • Cold · below 60°F · 384
  • Cool · 60–69°F · 607
  • Comfortable · 70–86°F · 930
  • 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. Raccoon Creek near Granville OHUSGS gauge · Ohio · 229 ft³/s
    69°F25 mi7 hrs ago
  2. Scioto River above Shadeville OHUSGS gauge · Ohio
    74°F38 mi7 hrs ago
  3. Hoover Reservoir at Central College OHUSGS gauge · Ohio
    78°F39 mi6 hrs ago
  4. Big Walnut Creek at Sunbury OHUSGS gauge · Ohio · 87 ft³/s
    71°F44 mi6 hrs ago
  5. Griggs Reservoir at Columbus OHUSGS gauge · Ohio
    73°F45 mi6 hrs ago
  6. Alum Creek at Africa OHUSGS gauge · Ohio · 302 ft³/s
    78°F45 mi7 hrs ago
  7. Clover Groff Ditch below Alton OHUSGS gauge · Ohio · 58 ft³/s
    76°F48 mi7 hrs ago
  8. Big Darby Creek above Georgesville OHUSGS gauge · Ohio
    72°F49 mi7 hrs ago

Nearest swimmable spots

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

Buckeye Lake4.7(50)

Buckeye Lake

Lake · Ohio
Camping nearby

A 3,100-care state park lake formed in 1826 with boat ramps & popular water sport & picnic area.

15 mi from your location

Buckeye Lake State Park4.4(2,466)

Buckeye Lake State Park

State park · Millersport, Ohio

Swimming, fishing, boating, picnicking & grilling offered in Ohio's oldest state park.

15 mi from your location

Lake Logan State Park4.4(1,097)

Lake Logan State Park

State park · Logan, Ohio
Camping nearby

Wooded recreation area on 300+ acres anchored by a large lake for fishing, swimming & boating.

17 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.