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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 (23 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. Sandusky River near Fremont OHUSGS gauge · Ohio · 525 ft³/s
    73°F12 mi23 hrs ago
  2. Huron River at Milan OHUSGS gauge · Ohio · 48 ft³/s
    71°F23 mi23 hrs ago
  3. Maumee River at Waterville OHUSGS gauge · Ohio · 5,310 ft³/s
    75°F37 mi1 day ago
  4. Rocky River near Berea OHUSGS gauge · Ohio · 71 ft³/s
    69°F58 mi23 hrs ago
  5. LOWER RIVER ROUGE AT DEARBORN, MIUSGS gauge · Michigan · 32 ft³/s
    69°F61 mi1 day ago
  6. LOWER RIVER ROUGE AT WAYNE, MIUSGS gauge · Michigan · 32 ft³/s
    69°F62 mi23 hrs ago
  7. RIVER ROUGE AT DETROIT, MIUSGS gauge · Michigan · 25 ft³/s
    69°F66 mi23 hrs ago
  8. Maumee River near Defiance OHUSGS gauge · Ohio · 4,990 ft³/s
    77°F67 mi1 day ago

Nearest swimmable spots

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

Sandusky River4.1(11)

Sandusky River

River · Riley Township, Ohio

Once home to the Seneca & Wyandot Indians, this river is popular for canoeing, hunting & fishing.

0.7 mi from your location

Put-in-Bay4.9(11)

Put-in-Bay

Bay · Put-In-Bay, Ohio
Camping nearby

Intimate waterside village with historic homes, a marina, shops & other tourist attractions.

18 mi from your location

Kelleys Island State Park4.7(1,210)

Kelleys Island State Park

State park · Kelleys Island, Ohio
Camping nearby

Accessible via ferry, a preserve offering camp sites, fishing & a boat launch into Lake Erie.

20 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.