Live · updated daily from USGS
Swimmable water near you
2,141 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (32 mins ago).
- Cold · below 60°F · 385
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 934
- 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.
- SAUK RIVER AT DARRINGTON, WAUSGS gauge · Washington63°F4.9 mi42 mins ago
- SAUK RIVER NEAR SAUK, WAUSGS gauge · Washington · 1,290 ft³/s62°F8.1 mi42 mins ago
- SAUK RIVER AB WHITE CHUCK RIVER NR DARRINGTON, WAUSGS gauge · Washington · 179 ft³/s60°F10 mi1 hr ago
- CASCADE RIVER AT MARBLEMOUNT, WAUSGS gauge · Washington · 402 ft³/s57°F16 mi42 mins ago
- SKAGIT RIVER AT MARBLEMOUNT, WAUSGS gauge · Washington · 2,200 ft³/s54°F16 mi42 mins ago
- BACON CREEK BELOW OAKES CREEK NEAR MARBLEMOUNT, WAUSGS gauge · Washington · 82 ft³/s55°F21 mi1 hr ago
- SOUTH FORK SULTAN RIVER NEAR SULTAN, WAUSGS gauge · Washington · 5 ft³/s58°F25 mi1 hr ago
- SULTAN RIVER BELOW DIVERSION DAM NEAR SULTAN, WAUSGS gauge · Washington · 108 ft³/s55°F27 mi42 mins ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
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.