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 (22 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.
- SANTA MARGARITA R NR TEMECULA CAUSGS gauge · California · 3 ft³/s76°F72 mi23 hrs ago
- DEEP C NR HESPERIA CAUSGS gauge · California · 0 ft³/s79°F77 mi23 hrs ago
- MOJAVE R A LO NARROWS NR VICTORVILLE CAUSGS gauge · California · 4 ft³/s72°F83 mi22 hrs ago
- TECOLOTE C AB FOOTBRIDGE NR SAN DIEGO CAUSGS gauge · California · 0 ft³/s68°F93 mi23 hrs ago
- HILTON CYN C 0.25 MI BL BRADBURY DAM NR SANTA YNEZUSGS gauge · California · 6 ft³/s60°F111 mi22 hrs ago
- SANTA YNEZ R NR SANTA YNEZ CAUSGS gauge · California62°F111 mi22 hrs ago
- SANTA YNEZ R A HWY 154 NR SANTA YNEZ CAUSGS gauge · California · 22 ft³/s65°F113 mi23 hrs ago
- SANTA YNEZ R A SOLVANG CAUSGS gauge · California · 17 ft³/s69°F118 mi23 hrs ago
Nearest swimmable spots
Rated, photographed water destinations within 25 miles — pair one with the nearest sensor reading above before you go.
4.7(1,658)Abalone Cove Park
Expansive park by the ocean featuring 2 beaches plus trails, caves & picnic areas.
2.0 mi from your location
4.7(625)Pelican Cove Park
Ocean-adjacent public park offers views of Santa Catalina Island & a walking trail to beach access.
3.2 mi from your location
4.7(99)Rat Beach
Secluded local beach, framed by steep cliffs & rocky terrain & reached by a maintained trail.
5.7 mi from your location
4.6(26,119)Redondo Beach Pier
Landmark pier known for scenic oceanfront dining, shopping & nightlife, plus music & festivals.
7.9 mi from your location
4.8(8,186)Hermosa Beach Pier
Long-standing 1,140-foot pier featuring beach & sunset ocean views, plus public restrooms & fishing.
9.6 mi from your location
4.8(311)Longfellow Beach
Laid-back public beach with a long, wide expanse of sand, swings, lifeguard stands & a shower.
11 mi from your location
4.7(13,872)Manhattan Beach Pier
This restored 928-ft. concrete pier is the oldest on the West Coast & features a cafe & an aquarium.
11 mi from your location
4.7(1,808)Bruce's Beach
Small local park known for its role in African-American history, as well as its scenic views.
12 mi from your location
4.5(16,442)Dockweiler Beach
Bustling public beach offering a hang gliding training park, bonfires & views of departing aircraft.
15 mi from your location
4.7(2,581)Playa Del Rey Beach
Broad, peaceful sandy beach featuring volleyball courts, a paved bike path & fire pits.
16 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.