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 (14 hrs ago).
- Cold · below 60°F · 384
- Cool · 60–69°F · 607
- Comfortable · 70–86°F · 929
- Warm · above 86°F · 215
A map of the United States with one coloured dot per USGS sensor reporting a live water temperature. The readings are listed below.
That location is outside the map’s coverage, so it isn’t drawn — the nearest readings below are still measured from it.
Nearest live readings
The closest USGS sensors currently reporting a water temperature, nearest first.
- YUKON R AT PILOT STATION AKUSGS gauge · Alaska · 427,000 ft³/s63°F1082 mi1 day ago
- KUSKOKWIM R AT TULUKSAK AKUSGS gauge · Alaska · 109,000 ft³/s57°F1120 mi1 day ago
- NIUKLUK R AB MELSING C AT COUNCIL AKUSGS gauge · Alaska · 1,330 ft³/s51°F1162 mi1 day ago
- NUYAKUK R NR DILLINGHAM AKUSGS gauge · Alaska · 7,540 ft³/s58°F1190 mi1 day ago
- UNALAKLEET R AB CHIROSKEY R NR UNALAKLEET AKUSGS gauge · Alaska · 3,600 ft³/s47°F1215 mi1 day ago
- CROOKED C AB AIRPORT RD NR CROOKED CREEK AKUSGS gauge · Alaska · 588 ft³/s45°F1225 mi1 day ago
- KVICHAK R AT IGIUGIG AKUSGS gauge · Alaska · 24,600 ft³/s54°F1262 mi1 day ago
- WULIK R BL TUTAK C NR KIVALINA AKUSGS gauge · Alaska · 894 ft³/s50°F1290 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.