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 (9 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.
- POPE BROOK TRIBUTARY (W-9), NR NORTH DANVILLE, VTUSGS gauge · Vermont · 0 ft³/s57°F26 mi9 hrs ago
- SACO RIVER AT RIVER STREET, AT BARTLETT, NHUSGS gauge · New Hampshire · 61 ft³/s60°F30 mi1 day ago
- CONNECTICUT RIVER AT NORTH STRATFORD, NHUSGS gauge · New Hampshire · 501 ft³/s63°F41 mi1 day ago
- Wild River at Gilead, MaineUSGS gauge · Maine · 23 ft³/s65°F47 mi9 hrs ago
- CONNECTICUT R BELOW INDIAN STREAM NR PITTSBURG, NHUSGS gauge · New Hampshire · 328 ft³/s60°F63 mi1 day ago
- LAPLATTE RIVER AT SHELBURNE FALLS, VTUSGS gauge · Vermont · 4 ft³/s65°F67 mi9 hrs ago
- LAKE CHAMPLAIN AT BURLINGTON, VTUSGS gauge · Vermont72°F69 mi10 hrs ago
- COLD RIVER AT HIGH STREET, AT ALSTEAD, NHUSGS gauge · New Hampshire · 8 ft³/s66°F75 mi1 day ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
Lonesome Lake
12-acre mountain lake accessible by hiking trail, with a loop path & year-round hut for overnights.
9.3 mi from your location
Echo Lake
Surrounded by trees & hills, this tranquil lake is a destination for swimming, boating & fishing.
9.3 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.

