Live · updated daily from USGS
Swimmable water near you
2,133 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (21 hrs ago).
- Cold · below 60°F · 382
- 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.
- Ramapo River above dam at Pompton Lakes NJUSGS gauge · New Jersey75°F25 mi22 hrs ago
- Ramapo River at Pompton Lakes NJUSGS gauge · New Jersey · 391 ft³/s74°F25 mi22 hrs ago
- 74°F25 mi21 hrs ago
- BRONX RIVER AT NY BOTANICAL GARDEN AT BRONX NYUSGS gauge · New York · 385 ft³/s69°F27 mi1 day ago
- EAST CREEK AT SANDS POINT NYUSGS gauge · New York75°F29 mi1 day ago
- 73°F30 mi21 hrs ago
- 70°F30 mi1 day ago
- 74°F30 mi1 day ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(87)New Croton Reservoir
Reservoir holding a dammed 9-mi. stretch of river since 1905 & supplying drinking water to NYC.
6.5 mi from your location
4.8(719)Teatown Lake Reservation
1,000-acre parkland offering 15 mi. of hiking trails & an indoor/outdoor nature education center.
6.9 mi from your location
4.7(1,090)Nyack Beach State Park
Scenic 61-acre riverside park attracting hikers, bikers, kayakers & cross country skiers in winter.
8.9 mi from your location
4.8(236)Dockside Park
Small, paved square on the Hudson River with a cannon memorial & benches lining the waterfront.
12 mi from your location
4.8(93)Kensico Reservoir
Lake with fishing & boating, plus a historic dam featuring a park with a playground & trails.
15 mi from your location
4.7(30)Croton Falls Reservoir
Artificial lake, part of NYC's water supply, with boating, marinas & fishing for brown trout.
17 mi from your location
4.7(129)Mianus River Gorge Preserve
Large, old-growth forest nature preserve with miles of hiking trails, open Apr–Nov.
18 mi from your location
4.7(1,027)Scenic Hudson's Long Dock Park
Dock with water sports from kayaking & paddleboarding, plus picknicking & barbecuing.
18 mi from your location
4.7(27)East Branch Reservoir
525-acre, tree-ringed water reservoir with miles of hiking trails on the western edge.
22 mi from your location
4.5(282)Twin Lakes County Park
This park's equestrian center offers riding lessons, year-round boarding space & miles of trails.
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.