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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. Raccoon Creek at Wrights Mill NJUSGS gauge · New Jersey · 5 ft³/s
    77°F12 mi19 hrs ago
  2. Cohansey River at Greenwich NJUSGS gauge · New Jersey
    81°F12 mi18 hrs ago
  3. Raccoon Creek near Swedesboro NJUSGS gauge · New Jersey · 26 ft³/s
    70°F13 mi18 hrs ago
  4. Delaware River at Reedy Island Jetty, DEUSGS gauge · Delaware
    82°F13 mi18 hrs ago
  5. DELAWARE RIVER AT DEL MEM BRIDGE AT WILMINGTON DEUSGS gauge · Delaware
    81°F14 mi18 hrs ago
  6. C AND D CANAL NR DELAWARE CITY, DEUSGS gauge · Delaware · 14,400 ft³/s
    83°F15 mi18 hrs ago
  7. APPOQUINIMINK RIVER NEAR ODESSA, DEUSGS gauge · Delaware
    80°F16 mi18 hrs ago
  8. CHRISTINA RIVER AT WILMINGTON, DEUSGS gauge · Delaware
    79°F17 mi18 hrs ago

Nearest swimmable spots

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

Riverview Beach Park4.6(1,275)

Riverview Beach Park

Park · Pennsville, New Jersey

A historic waterfront park along the Delaware River in Pennsville, New Jersey, Riverview Beach Park has been a community gathering spot since the early 1900s. The park offers a sandy beach, playground, picnic areas, walking paths, and expansive river views. A seasonal splash pad and open green space make it a popular family destination, while the waterfront promenade provides scenic views of passing ships and the Delaware Memorial Bridge.

12 mi from your location

Deemers Beach3.9(91)

Deemers Beach

Beach · Delaware

Riverfront area with a simple stretch of coarse sand used as a fishing spot, plus nearby parking.

15 mi from your location

Brandywine Creek4.6(28)

Brandywine Creek

River · Wilmington, Delaware

A Revolutionary War battle area, this landmark creek features historic sites & outdoor recreation.

16 mi from your location

Washington Lake Park4.7(1,985)

Washington Lake Park

Park · Sewell, New Jersey
Camping nearbyDog-friendly

Green space with an outdoor amphitheater, skate park, dog park & golf course, plus sports fields.

18 mi from your location

Wenonah Lake4.5(104)

Wenonah Lake

Swimming facility · Wenonah, New Jersey

The John and Kathy Howard Park at Wenonah Lake is now open to public from dawn to dusk, other than during the days of the swimming program. The park may be closed during scheduled events. Contact the Borough Office for Pavilion rental information, 856.468.5228 and Wenonah Lake at 856-468-5895 for more information.

19 mi from your location

Lums Pond State Park4.7(3,435)

Lums Pond State Park

State park · Bear, Delaware
Camping nearby

1,790-acre preserve featuring freshwater pond, multipurpose trails, fishing, boat rentals & more.

21 mi from your location

Brandywine Creek State Park4.7(1,493)

Brandywine Creek State Park

State park · Wilmington, Delaware

933-acre preserve divided by 19th-century stone walls, with tulip poplar forest & nature center.

21 mi from your location

Newark Reservoir4.8(122)

Newark Reservoir

Lake · Newark, Delaware

Reservoir lake surrounded by a paved waterfront walking trail with access to an adjacent park.

24 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.