Live · updated daily from USGS
Swimmable water near you
2,137 USGS sensors are reporting a live water temperature right now, the newest reading from August 22, 2026 (5 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 931
- 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.
- BIRCH C NR CIRCLE AKUSGS gauge · Alaska · 1,650 ft³/s55°F101 mi1 day ago
- SLATE C AT COLDFOOT AKUSGS gauge · Alaska · 191 ft³/s44°F135 mi1 day ago
- SF KOYUKUK R NR COLDFOOT AKUSGS gauge · Alaska49°F139 mi1 day ago
- LIVENGOOD C AT LIVENGOOD AKUSGS gauge · Alaska · 23 ft³/s42°F146 mi1 day ago
- TOLOVANA R BL ROSEBUD C NR LIVENGOOD AKUSGS gauge · Alaska · 242 ft³/s49°F151 mi1 day ago
- CHENA R NR TWO RIVERS AKUSGS gauge · Alaska · 959 ft³/s49°F158 mi1 day ago
- SAGAVANIRKTOK R NR PUMP STA 3 AKUSGS gauge · Alaska · 10,900 ft³/s49°F161 mi1 day ago
- SALCHA R NR SALCHAKET AKUSGS gauge · Alaska · 1,830 ft³/s55°F191 mi1 day 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.