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 22, 2026 (19 hrs ago).
- Cold · below 60°F · 384
- 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.
- 78°F3.5 mi20 hrs ago
- Millstone River at Blackwells Mills NJUSGS gauge · New Jersey · 509 ft³/s77°F8.2 mi20 hrs ago
- Arthur Kill at Perth Amboy NJUSGS gauge · New Jersey76°F8.6 mi19 hrs ago
- Raritan River at Manville NJUSGS gauge · New Jersey · 691 ft³/s73°F10 mi20 hrs ago
- Raritan Bay at Keansburg NJUSGS gauge · New Jersey76°F14 mi19 hrs ago
- Delaware and Raritan Canal at Port Mercer NJUSGS gauge · New Jersey · 133 ft³/s76°F18 mi19 hrs ago
- Canoe Brook near Summit NJUSGS gauge · New Jersey · 18 ft³/s72°F19 mi20 hrs ago
- Newark Bay at PVSC at Newark NJUSGS gauge · New Jersey78°F23 mi19 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.5(399)Riverside Park
Riverside public green space with picnic tables, a pavilion, a boat launch & shade trees.
6.8 mi from your location
4.6(2,964)Rahway River Park
Park with a wide range of athletic & recreational facilities, including an outdoor swimming pool.
13 mi from your location
4.5(72)Carnegie Lake
Sprawling reservoir in wooded surrounds, popular among rowers, anglers & ice skaters.
14 mi from your location
4.6(1,318)Echo Lake Park
Park with lots of room for sports, from ice-skating to softball, plus a snack bar for refueling.
15 mi from your location
4.2(162)Elizabeth River Parkway
Large riverfront park featuring sports fields & courts, fishing banks, shuffleboard & 2 playgrounds.
17 mi from your location
4.4(136)Perrineville Lake Park
This large natural area features multi-use trails, wildlife viewing & a fishing pond.
17 mi from your location
4.6(3,389)Clove Lakes Park
Lakes, ponds & trees plus modern recreational areas including playgrounds & an outdoor skating rink.
19 mi from your location
4.6(1,897)Silver Lake Park
209-ac. public park with lake, 18-hole golf course, tennis courts, sports fields, trails & more.
20 mi from your location
4.8(1,597)Manasquan Reservoir
Park with a multi-use trail around a reservoir, plus water recreation such as boating & fishing.
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.