Harvest, CA (071) (46218) — Live Marine Conditions & Buoy Data
NOAA station 46218, Harvest, CA (071), reports real-time marine conditions from 34.452°N, 120.780°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 Harvest, CA (071)
As of October 19, 2026 at 19:26 UTC, Harvest, CA (071) (46218) is reporting water temperature 69°F, air temperature 66°F, and wave height 8.5 ft at a 17-second dominant period.
- Water temperature
- 69°F
- Air temperature
- 66°F
- Wave height
- 8.5 ft @ 17 s
Observed October 19, 2026 at 19:26 UTC from NOAA NDBC station 46218. Readings update about every 10 minutes.
What NOAA buoy 46218 measures
As a NOAA meteorological station, 46218 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 Harvest?
- Sea surface temperature at Harvest was 69°F. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)). NDBC measures this near the surface, at a depth that varies by station.
- What is the air temperature at Harvest?
- Air temperature at Harvest was 66°F. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)).
- How big are the waves at Harvest?
- Significant wave height at Harvest was 8.5 ft, with a 17-second dominant period. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)). 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 Harvest?
- Waves at Harvest were arriving from 188° true (S) at the dominant period. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)).
- What is the swell at Harvest?
- The swell at Harvest had a significant height of 6.6 ft at a 17-second peak period, arriving from the S. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)). NDBC separates swell from locally generated wind waves using a spectral estimate.
- How much wind chop is at Harvest?
- The wind-wave component at Harvest had a significant height of 5.6 ft at a 10-second peak period, from the NW. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)). Swell and wind-wave heights combine in quadrature, not by addition.
- Is it swell or wind chop at Harvest?
- NDBC classified the sea state at Harvest as swell, with a significant wave height of 8.5 ft. Measured October 19, 2026 at 19:26 UTC by NOAA station 46218 (Harvest, CA (071)). The classification describes wave steepness relative to period, not wave size.
- Where is NOAA buoy 46218 located?
- Harvest, CA (071) (46218) reports from 34.452°N, 120.780°W in the eastern North Pacific (California).
- How often is NOAA buoy 46218 updated?
- Station 46218 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 46218 measure?
- Big Buoy shows wind, barometric pressure, air and water temperature, and wave height and period where available for Harvest, CA (071), plus 7-day tides, solunar peak windows, and a multi-day weather outlook.
- Is Big Buoy free to use?
- Yes. Live data for Harvest, CA (071) 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.