Diablo Canyon, CA (076) (46215) — Live Marine Conditions & Buoy Data
NOAA station 46215, Diablo Canyon, CA (076), reports real-time marine conditions from 35.204°N, 120.859°W in the eastern North Pacific (California). Readings refresh roughly every 10 minutes, and Big Buoy adds 7-day tide predictions, a solunar table, and a multi-day weather outlook for the area.
Current conditions at Diablo Canyon, CA (076)
As of October 19, 2026 at 20:26 UTC, Diablo Canyon, CA (076) (46215) is reporting water temperature 69°F and wave height 5.6 ft at a 14-second dominant period.
- Water temperature
- 69°F
- Wave height
- 5.6 ft @ 14 s
Observed October 19, 2026 at 20:26 UTC from NOAA NDBC station 46215. Readings update about every 10 minutes.
What NOAA buoy 46215 measures
As a NOAA meteorological station, 46215 reports wind speed, gusts and direction, barometric pressure, air and water temperature, and — where wave sensors are fitted — significant wave height, swell period, and wave direction.
What to watch in the eastern North Pacific
The U.S. Pacific coast is dominated by long-period groundswell and strong seasonal upwelling that keeps nearshore water cold. Watch swell period as closely as wave height — a long-period west swell can make harbor entrances and bar crossings hazardous even when the wave height looks modest.
Frequently asked questions
- What is the water temperature at Diablo Canyon?
- Sea surface temperature at Diablo Canyon was 69°F. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)). NDBC measures this near the surface, at a depth that varies by station.
- How big are the waves at Diablo Canyon?
- Significant wave height at Diablo Canyon was 5.6 ft, with a 14-second dominant period. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)). Significant wave height is the average of the highest one-third of waves — individual waves can be larger.
- Which direction are the waves coming from at Diablo Canyon?
- Waves at Diablo Canyon were arriving from 238° true (WSW) at the dominant period. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)).
- What is the swell at Diablo Canyon?
- The swell at Diablo Canyon had a significant height of 3.9 ft at a 14-second peak period, arriving from the WSW. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)). NDBC separates swell from locally generated wind waves using a spectral estimate.
- How much wind chop is at Diablo Canyon?
- The wind-wave component at Diablo Canyon had a significant height of 3.6 ft at a 10-second peak period, from the WNW. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)). Swell and wind-wave heights combine in quadrature, not by addition.
- Is it swell or wind chop at Diablo Canyon?
- NDBC classified the sea state at Diablo Canyon as swell, with a significant wave height of 5.6 ft. Measured October 19, 2026 at 20:26 UTC by NOAA station 46215 (Diablo Canyon, CA (076)). The classification describes wave steepness relative to period, not wave size.
- Where is NOAA buoy 46215 located?
- Diablo Canyon, CA (076) (46215) reports from 35.204°N, 120.859°W in the eastern North Pacific (California).
- How often is NOAA buoy 46215 updated?
- Station 46215 typically reports new observations about every 10 minutes. Big Buoy refreshes continuously so you always see the latest readings, alongside 7-day tide predictions and a solunar table for the area.
- What does NOAA buoy 46215 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Diablo Canyon, CA (076), plus 7-day tides, solunar peak windows, and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Diablo Canyon, CA (076) and every other NOAA buoy is free with no account required. Big Buoy Pro adds the Wind Tab, the Depth Chart, satellite overlays (sea surface temp, chlorophyll, currents), 16-day forecasts, and forecast model switching.