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NDBC Station46218

Harvest Buoy 46218

Owned and maintained by Scripps Institution of Oceanography (CDIP)Waverider Buoy
Map ↗
LiveConditions at 46218 as of Aug 27, 7:26 PM PDT· NDBC reports every 30 min
Current conditions
Wave height WVHT
6.2ft11sDPD6.0sAPD
from SSW
Wind WSPD
—
no wind sensor
Water temp WTMP
68.2°F
+1.8°Fwarmer than air
Air temp ATMP
66.4°F
Pressure PRES
—

Recent (Last 24 hours)

Every 10-minute transmission NDBC published, newest first. Blank = not reported in that transmission; waves are sampled every 30 minutes.
WavesWindSeaAir
TIMEPDTWVHTftDPDsecAPDsecMWD WDIR WSPDktsGSTktsWTMP°FTIDEftPRESinPTDYinATMP°FDEWP°FVISnmi
08/27/2026 07:26 PM6.2116.0SSW---68.2---66.4--
08/27/2026 06:56 PM6.2115.9SSW---67.8---66.7--
08/27/2026 06:26 PM6.6116.1SSW---67.3---67.1--
08/27/2026 05:56 PM6.2126.1SSW---66.7---66.6--
08/27/2026 05:26 PM6.2116.3WSW---66.0---65.5--
08/27/2026 04:56 PM6.2126.4SSW---65.8---64.9--
08/27/2026 04:26 PM6.2116.0W---66.2---64.8--
08/27/2026 03:56 PM5.9125.8S---66.4---65.1--
08/27/2026 03:26 PM6.6126.4SSW---66.4---65.3--
08/27/2026 02:56 PM6.2126.6S---66.6---65.5--
08/27/2026 02:26 PM5.9126.3SSW---66.6---65.7--
08/27/2026 01:56 PM6.676.3NW---66.6---65.5--
08/27/2026 01:26 PM6.686.2NW---66.6---65.5--
08/27/2026 12:56 PM6.286.1NW---66.6---65.3--
08/27/2026 12:26 PM6.286.1NW---66.7---64.9--
08/27/2026 11:56 AM6.286.2NW---66.7---64.9--
08/27/2026 11:26 AM5.986.1NW---66.7---65.7--
08/27/2026 10:56 AM6.286.6NW---66.6---66.2--
08/27/2026 10:26 AM6.286.5NW---66.6---65.8--
08/27/2026 09:56 AM5.976.4NW---66.6---66.0--
08/27/2026 09:26 AM6.286.5NW---66.4------
08/27/2026 08:56 AM6.686.6NW---66.4---64.2--
08/27/2026 08:26 AM7.286.5NW---66.4---65.5--
08/27/2026 07:56 AM6.976.0NW---66.4---65.5--
08/27/2026 07:26 AM6.676.2NW---66.0---64.4--
08/27/2026 06:56 AM6.986.3NW---65.7------
08/27/2026 06:26 AM6.9136.3WSW---65.7------
08/27/2026 05:56 AM6.986.1NW---66.0---63.5--
08/27/2026 05:26 AM6.976.1NW---66.4---63.9--
08/27/2026 04:56 AM6.976.0NW---66.7---63.9--
08/27/2026 04:26 AM7.275.9NW---66.9---63.5--
08/27/2026 03:56 AM6.676.0NW---66.9---63.5--
08/27/2026 03:26 AM6.676.2NW---67.1---63.5--
08/27/2026 02:56 AM6.676.0NW---67.3---63.9--
08/27/2026 02:26 AM6.676.2NW---67.3---64.0--
08/27/2026 01:56 AM6.6136.5SSW---67.5---64.4--
08/27/2026 01:26 AM6.676.3NW---67.3---64.4--
08/27/2026 12:56 AM6.276.2NW---66.7---64.4--
08/27/2026 12:26 AM6.2136.4SSW---66.6---64.6--
08/26/2026 11:56 PM6.2136.5SSW---66.4---64.6--
08/26/2026 11:26 PM6.276.3NW---66.6---64.6--
08/26/2026 10:56 PM6.9136.6WSW---66.4---64.6--
08/26/2026 10:26 PM6.6136.7S---66.4---64.6--
08/26/2026 09:56 PM6.9136.8S---65.5---64.2--
08/26/2026 09:26 PM6.976.6NW---65.3---64.2--
08/26/2026 08:56 PM6.6136.7S---65.5---64.2--
08/26/2026 08:26 PM6.9136.4S---65.5---64.2--
08/26/2026 07:56 PM6.9136.9S---65.7---64.2--
08/26/2026 07:26 PM7.276.6NW---65.7---64.4--
08/26/2026 06:56 PM7.2136.8SSW---65.7---65.1--
08/26/2026 06:26 PM7.276.2NW---65.8---65.3--
08/26/2026 05:56 PM7.5136.6S---65.8---65.3--
08/26/2026 05:26 PM7.5136.7S---65.8---65.3--
08/26/2026 04:56 PM7.2136.4S---65.8---65.1--
08/26/2026 04:26 PM7.9126.6S---65.8---65.1--
08/26/2026 03:56 PM7.5136.4S---65.8---65.3--
08/26/2026 03:26 PM7.276.2NW---66.0---65.3--
08/26/2026 02:56 PM7.5136.3S---66.0---65.3--
08/26/2026 02:26 PM7.5136.5SSW---66.0---64.9--
08/26/2026 01:56 PM7.576.2NW---66.0---64.6--
08/26/2026 01:26 PM7.2136.1SSE---66.2---64.4--
08/26/2026 12:56 PM6.9136.2S---66.2---64.4--
08/26/2026 12:26 PM6.676.1NW---66.2---64.4--
08/26/2026 11:56 AM6.6136.4S---66.2---64.4--
08/26/2026 11:26 AM6.6136.3SSE---66.2---64.4--
08/26/2026 10:56 AM6.976.2NW---66.2---64.4--
08/26/2026 10:26 AM6.9136.2S---66.2---64.4--
08/26/2026 09:56 AM7.276.3NW---66.2---64.0--
08/26/2026 09:26 AM6.685.9NW---66.2---63.9--
08/26/2026 08:56 AM6.6146.1S---66.2---63.9--
08/26/2026 08:26 AM6.6136.1S---66.2---63.7--
08/26/2026 07:56 AM6.676.1NW---66.2---63.7--
08/26/2026 07:26 AM6.976.1NW---66.2---63.1--
08/26/2026 06:56 AM6.675.8NW---66.2---62.8--
08/26/2026 06:26 AM6.665.8NW---66.2---62.6--
08/26/2026 05:56 AM6.675.8NW---66.2---62.6--
08/26/2026 05:26 AM6.976.2NW---66.2---62.6--
08/26/2026 04:56 AM6.9126.0SSE---66.0---62.6--
08/26/2026 04:26 AM6.6126.1SSE---66.2---62.8--
08/26/2026 03:56 AM6.6125.9SSE---66.0---62.4--
08/26/2026 03:26 AM6.2136.0S---66.0---62.8--
08/26/2026 02:56 AM6.2125.8SSE---66.0---62.8--
08/26/2026 02:26 AM6.276.1NW---66.0---62.8--
08/26/2026 01:56 AM6.276.1NW---65.8---63.0--
08/26/2026 01:26 AM6.676.1WNW---65.1---62.4--
08/26/2026 12:56 AM6.9126.5SSE---64.8---62.6--
08/26/2026 12:26 AM6.6126.2SSE---64.2---62.2--
08/25/2026 11:56 PM5.9135.9SSE---64.0---62.2--
08/25/2026 11:26 PM5.9135.7S---64.2---62.4--
08/25/2026 10:56 PM5.9146.0S---64.2---62.4--
08/25/2026 10:26 PM5.9135.9SSE---64.0---62.1--
08/25/2026 09:56 PM5.975.7NW---64.0---62.1--
08/25/2026 09:26 PM5.975.6NW---64.0---62.2--
08/25/2026 08:56 PM6.275.9WNW---63.9---62.2--
08/25/2026 08:26 PM5.6135.5SSE---63.9---62.2--
08/25/2026 07:56 PM5.675.7NW---63.9---62.2--
08/25/2026 07:26 PM5.975.7NW---63.7---62.6--
08/25/2026 06:56 PM5.6175.7SW---63.9---63.1--
08/25/2026 06:26 PM5.6145.9S---63.9---63.3--
08/25/2026 05:56 PM5.9146.1S---63.9---63.1--
08/25/2026 05:26 PM5.275.8NW---64.0---63.1--
08/25/2026 04:56 PM5.675.7NW---64.0---63.1--
08/25/2026 04:26 PM5.6135.8S---64.0---63.1--
08/25/2026 03:56 PM5.2135.8S---64.0---62.8--
08/25/2026 03:26 PM5.265.7NW---64.0---62.6--
08/25/2026 02:56 PM5.2146.0SSW---63.9---62.6--
08/25/2026 02:26 PM5.275.8NW---63.9---62.1--
08/25/2026 01:56 PM4.965.8NW---64.0---62.1--
08/25/2026 01:26 PM5.276.0NW---63.9---61.7--
08/25/2026 12:56 PM5.6146.1S---63.9---61.5--
08/25/2026 12:26 PM5.6146.0S---63.9---61.3--
08/25/2026 11:56 AM5.665.8NW---63.7---61.2--
08/25/2026 11:26 AM5.275.8NW---63.7---60.6--
08/25/2026 10:56 AM5.2135.8SSW---63.7---60.4--
08/25/2026 10:26 AM5.6145.7S---63.7---60.3--
08/25/2026 09:56 AM4.965.5NW---63.7---60.1--
08/25/2026 09:26 AM5.265.4NW---63.7------
08/25/2026 08:56 AM4.9145.6S---63.7---59.7--
08/25/2026 08:26 AM5.265.4NW---63.5---59.2--
08/25/2026 07:56 AM5.2145.2S---63.5---59.5--
08/25/2026 07:26 AM5.2145.4SSW---63.5---59.2--
08/25/2026 06:56 AM5.2135.3S---63.5---59.4--
08/25/2026 06:26 AM4.9135.4S---63.5---59.2--
08/25/2026 05:56 AM5.2145.3S---63.5---59.2--
08/25/2026 05:26 AM5.2135.3S---63.3---59.2--
08/25/2026 04:56 AM4.9145.2SSW---63.3---59.4--
08/25/2026 04:26 AM5.6135.6S---63.3---59.0--
08/25/2026 03:56 AM5.255.2NW---63.3---59.2--
08/25/2026 03:26 AM5.2145.3S---63.5---59.4--
08/25/2026 02:56 AM5.2155.2SSW---63.3---59.4--
08/25/2026 02:26 AM5.2155.3SSW---63.3---59.4--
08/25/2026 01:56 AM4.9145.3S---63.1---59.4--
08/25/2026 01:26 AM4.9145.5SSW---63.3---59.4--
08/25/2026 12:56 AM4.9135.3S---62.8---59.4--
08/25/2026 12:26 AM4.9145.6S---62.2---59.2--
08/24/2026 11:56 PM4.6145.4S---62.2---59.4--
08/24/2026 11:26 PM4.9135.7SSW---62.2---59.5--
08/24/2026 10:56 PM4.9145.6S---62.2---59.5--
08/24/2026 10:26 PM4.9145.7SSW---62.4---59.4--
08/24/2026 09:56 PM4.9135.9S---62.6---59.4--
08/24/2026 09:26 PM4.9145.5S---62.6---59.2--
08/24/2026 08:56 PM4.6145.6S---62.2---59.5--
08/24/2026 08:26 PM4.9145.7SSW---61.3---59.4--
08/24/2026 07:56 PM4.6145.9S---61.3---59.7--
08/24/2026 07:26 PM4.6145.6S---61.3---60.1--
08/24/2026 06:56 PM4.6145.9S---61.2---60.3--
08/24/2026 06:26 PM4.3145.6SSW---61.3---60.4--
08/24/2026 05:56 PM4.6145.8S---61.3---60.4--
08/24/2026 05:26 PM4.3145.9S---61.3---61.0--
08/24/2026 04:56 PM4.3146.0S---61.3---61.3--
All NDBC fields for the Aug 27, 7:26 PM PDT observation

Waves

Wave HeightWVHT6.2 ft
Dominant Wave PeriodDPD11 sec
Average Wave PeriodAPD6.0 sec
Mean Wave DirectionMWDSSW (206 deg true)
Swell HeightSwH3.0 ft
Swell PeriodSwP11.1 sec
Swell DirectionSwDSSW
Wind Wave HeightWWH5.6 ft
Wind Wave PeriodWWP6.7 sec
Wind Wave DirectionWWDNW
Wave SteepnessSTEEPNESSaverage

Wind

Wind DirectionWDIRnot reported
Wind SpeedWSPDnot reported
Wind GustGSTnot reported
Highest 1-min WindSUPLnot reported

Sea

Water TemperatureWTMP68.2 °F
TideTIDEnot reported
SalinitySALnot reported
Ocean TemperatureOTMPnot reported
Surface CurrentADCPnot reported

Air

Atmospheric PressurePRESnot reported
Pressure TendencyPTDYnot reported
Air TemperatureATMP66.4 °F
Dew PointDEWPnot reported
VisibilityVISnot reported
Lowest 1-min PressureSUPLnot reported

Last 5 days at 46218

Hourly, from the buoy's own reports. Hover to read one moment across every instrument.

46 days · 2,159 observations · added by SeaLegs AI

Is today normal at Harvest?

Every reading the buoy has made since Jul 14, summarized. NDBC's page remembers 5 days; this is the memory it doesn't have.

Daily peak seas

Highest significant wave height each day, ft
Biggest day
10.2ft
Top gust
-kt
Water vs Jul 14
+4.9°F

Where the wind comes from

Share of hours by direction · length = how often
avg under 12 ktavg 12 kt+

How often it's rough

Share of readings by wave height
0–2 ft
0.0%
2–4 ft
10.6%
4–6 ft
46.3%
6–8 ft
33.2%
8+ ft
9.9%

0 readings in 10 were under 2 ft. Seas topped 6 ft on 29 days in the window.

Nearby stations

NOAA and partner stations reporting weather within 80 nm of 46218.

STATIONS NEAR 46218

Closest with recent data

Distance and bearing from 46218
PTGC1Point Arguello, CA
NDBC
10 nm · NE46054WEST SANTA BARBARA 38 NM West of Santa Barbara, CA
NDBC
19 nm · SE46011SANTA MARIA - 21NM NW of Point Arguello, CA
NDBC
31 nm · NNW46259Santa Lucia Escarpment, CA (222)
U.S. Army Corps of Engineers
40 nm · WNWPSLC1Port San Luis, CA
NOS
43 nm · NCPXC1Cal Poly Pier, CA
California Polytechnic State University
43 nm · N46215Diablo Canyon, CA (076)
SCRIPPS
45 nm · N46053EAST SANTA BARBARA - 12NM Southwest of Santa Barbara, CA
NDBC
48 nm · ESE
Latest NWS Marine ForecastNotice to MarinersSAR dataNDBC station page

About station 46218

Harvest buoy 46218 is the offshore reference for boaters and anglers working these waters.

HullWaverider Buoy
Site elevationsea level
Water depth550 m · 1804 ft
Sea temp depth0.46 m below water line
OwnerScripps Institution of Oceanography (CDIP)
ProgramIOOS Partners
ReportsEvery 30 min (wave buoy)
Historical dataNDBC archive ↗

Questions about buoy 46218

Where is buoy 46218?

NDBC station 46218 is moored at 34.452°N, 120.780°W — Harvest, CA (071), in 550 m of water. The closest other reporting station is Point Arguello, CA (PTGC1), 10 nm to the NE.

How big are the waves at the Harvest buoy right now?

As of the Aug 27, 7:26 PM PDT report, 46218 shows 6.2 ft significant wave height on a 11-second dominant period from the SSW. Over the past 46 days, 0% of readings were under 2 ft and the biggest day reached 10.2 ft.

What is the water temperature at Harvest buoy?

Water temperature at the buoy is 68.2°F. That is 5°F warmer than on July 14.

Why are some fields blank?

Waves are sampled every 30 minutes, so most 10-minute rows carry no value for them. NDBC prints “-” (or “MM” in the raw feed). A field that stays blank for days usually means a sensor fault; NDBC lists outages on its station status page.

Added by SeaLegs AI

The buoy says what it did. This says what it'll do.

The buoy reads the present. For what Harvest will do tomorrow, and whether your boat should be out in it, that's the app.

Per-vessel go / no-go for Harvest

SeaLegs AI turns 12+ forecast models — and the buoy you just read — into a verdict for your boat, not a generic sea state.

Get the appSee a forecast

Observations: NOAA National Data Buoy Center, station 46218, real-time feed. SeaLegs AI converts units and computes the 46-day summaries; the readings are NDBC's and are shown unaltered. Not a forecast. Not for navigation. NDBC station page ↗