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 21, 2026 (8 hrs ago).
- Cold · below 60°F · 375
- Cool · 60–69°F · 595
- Comfortable · 70–86°F · 938
- Warm · above 86°F · 229
- 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.
- NIUKLUK R AB MELSING C AT COUNCIL AKUSGS gauge · Alaska · 1,330 ft³/s51°F54 mi9 hrs ago
- UNALAKLEET R AB CHIROSKEY R NR UNALAKLEET AKUSGS gauge · Alaska · 3,600 ft³/s47°F157 mi9 hrs ago
- YUKON R AT PILOT STATION AKUSGS gauge · Alaska · 427,000 ft³/s63°F198 mi8 hrs ago
- WULIK R BL TUTAK C NR KIVALINA AKUSGS gauge · Alaska · 894 ft³/s50°F232 mi8 hrs ago
- KUSKOKWIM R AT TULUKSAK AKUSGS gauge · Alaska · 109,000 ft³/s57°F276 mi9 hrs ago
- CROOKED C AB AIRPORT RD NR CROOKED CREEK AKUSGS gauge · Alaska · 588 ft³/s45°F290 mi8 hrs ago
- KUSKOKWIM R AT MCGRATH AKUSGS gauge · Alaska · 34,000 ft³/s54°F318 mi9 hrs ago
- NUYAKUK R NR DILLINGHAM AKUSGS gauge · Alaska · 7,540 ft³/s58°F394 mi8 hrs 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.