Live · updated daily from USGS
Swimmable water near you
1,323 USGS sensors are reporting a live water temperature right now, the newest reading from August 23, 2026 (11 hrs ago).
- Cold · below 60°F · 218
- Cool · 60–69°F · 484
- Comfortable · 70–86°F · 544
- Warm · above 86°F · 77
- 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.
- HUDSON RIVER AT ALBANY NYUSGS gauge · New York77°F34 mi11 hrs ago
- MOHAWK RIVER AT COHOES NYUSGS gauge · New York · 788 ft³/s75°F38 mi11 hrs ago
- CONNECTICUT RIVER NEAR NORTHFIELD, MAUSGS gauge · Massachusetts · 2,590 ft³/s76°F39 mi12 hrs ago
- ESOPUS CREEK AT MOUNT MARION NYUSGS gauge · New York · 122 ft³/s73°F50 mi11 hrs ago
- 77°F55 mi11 hrs ago
- WARE RIVER AT INTAKE WORKS NEAR BARRE, MAUSGS gauge · Massachusetts · 19 ft³/s68°F55 mi12 hrs ago
- ASHUELOT RIVER NEAR GILSUM, NHUSGS gauge · New Hampshire · 11 ft³/s66°F61 mi11 hrs ago
- MOHAWK RIVER AT AMSTERDAM NYUSGS gauge · New York · 1,840 ft³/s76°F63 mi12 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(142)Lake Onota
617-acre lake offering boating, swimming & water skiing, plus a fishing pier & picnic tables.
7.2 mi from your location
4.8(37)Cheshire Reservoir
This secluded, 418-acre wilderness lake with 6 islands is popular for canoeing & kayaking.
7.5 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.

