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 21, 2026 (18 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 594
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 228
- 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.
- WIND RIVER NEAR CARSON, WAUSGS gauge · Washington · 156 ft³/s60°F46 mi18 hrs ago
- COLUMBIA RIVER AT CASCADE ISLAND, WAUSGS gauge · Washington72°F48 mi19 hrs ago
- 72°F48 mi19 hrs ago
- COLUMBIA RIVER, LEFT BANK, NEAR DODSON, ORUSGS gauge · Oregon72°F49 mi19 hrs ago
- WHITE SALMON RIVER NEAR UNDERWOOD, WAUSGS gauge · Washington · 432 ft³/s50°F53 mi19 hrs ago
- EF DAIRY CR ABV MURTAUGH CR NR MEACHAM CORNER, ORUSGS gauge · Oregon · 9 ft³/s62°F56 mi19 hrs ago
- JOHNSON CREEK AT REGNER ROAD, AT GRESHAM, ORUSGS gauge · Oregon · 1 ft³/s69°F57 mi18 hrs ago
- WILLAMETTE RIVER AT PORTLAND, ORUSGS gauge · Oregon · 14,100 ft³/s75°F57 mi18 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.8(32)Spirit Lake
A busy tourist spot before the 1980 eruption of Mount St. Helens, this lake offers trails & camping.
8.1 mi from your location
4.9(10)South Fork Toutle River
tributary to the Toutle River in Cowlitz County and Skamania County, Washington state, United States of America
18 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.

