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 21, 2026 (12 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 594
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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.
- Raritan Bay at Keansburg NJUSGS gauge · New Jersey75°F2.8 mi12 hrs ago
- Arthur Kill at Perth Amboy NJUSGS gauge · New Jersey75°F5.5 mi12 hrs ago
- 78°F15 mi13 hrs ago
- Newark Bay at PVSC at Newark NJUSGS gauge · New Jersey77°F19 mi13 hrs ago
- Millstone River at Blackwells Mills NJUSGS gauge · New Jersey · 902 ft³/s73°F20 mi13 hrs ago
- Manasquan River near Allenwood NJUSGS gauge · New Jersey · 232 ft³/s69°F21 mi13 hrs ago
- Raritan River at Manville NJUSGS gauge · New Jersey · 2,240 ft³/s72°F22 mi13 hrs ago
- Canoe Brook near Summit NJUSGS gauge · New Jersey · 142 ft³/s69°F23 mi13 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
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
4.6(3,389)Clove Lakes Park
Lakes, ponds & trees plus modern recreational areas including playgrounds & an outdoor skating rink.
13 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.
14 mi from your location
4.2(162)Elizabeth River Parkway
Large riverfront park featuring sports fields & courts, fishing banks, shuffleboard & 2 playgrounds.
15 mi from your location
4.5(399)Riverside Park
Riverside public green space with picnic tables, a pavilion, a boat launch & shade trees.
18 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.
18 mi from your location
4.6(567)Upper Bay
Playing an historic role in the commerce of NYC, this prominent bay features The Statue of Liberty.
18 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.
19 mi from your location
4.6(1,271)Louis Valentino, Jr. Park and Pier
Waterfront lawn that features a kayak boat launch & a pier affording views of the Statue of Liberty.
19 mi from your location
4.7(695)Governors Island Picnic Point
Offering views of the Statue of Liberty, this calm public space features picnic tables & hammocks.
19 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.