1. Buoys
  2. Southeast Atlantic
  3. 41117
NDBC Station41117

St. Augustine Buoy 41117

Owned and maintained by U.S. Army Corps of EngineersWaverider Buoy
Map ↗
LiveConditions at 41117 as of Aug 27, 10:26 PM EDT· NDBC reports every 30 min
Current conditions
Wave height WVHT
2.0ft4sDPD3.6sAPD
from SE
Wind WSPD
no wind sensor
Water temp WTMP
79.7°F
Air temp ATMP
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
TIMEEDTWVHTftDPDsecAPDsecMWD WDIR WSPDktsGSTktsWTMP°FTIDEftPRESinPTDYinATMP°FDEWP°FVISnmi
08/27/2026 10:26 PM2.043.6SE---79.7------
08/27/2026 09:56 PM2.043.4SE---79.9------
08/27/2026 09:26 PM2.333.3SSE---79.9------
08/27/2026 08:56 PM2.043.1SE---80.1------
08/27/2026 08:26 PM2.333.1SE---80.2------
08/27/2026 07:56 PM2.043.1ESE---80.6------
08/27/2026 07:26 PM1.643.4SE---81.0------
08/27/2026 06:56 PM1.633.4SE---81.0------
08/27/2026 06:26 PM1.6143.3E---80.8------
08/27/2026 05:56 PM1.6153.1ENE---80.8------
08/27/2026 05:26 PM1.623.0SSE---80.6------
08/27/2026 04:56 PM1.3153.3E---80.6------
08/27/2026 04:26 PM1.3143.3E---80.6------
08/27/2026 03:56 PM1.343.4SE---80.8------
08/27/2026 03:26 PM1.343.5SE---80.4------
08/27/2026 02:56 PM1.3153.8E---80.2------
08/27/2026 02:26 PM1.3153.8ENE---80.1------
08/27/2026 01:56 PM1.3154.0E---80.2------
08/27/2026 01:26 PM1.3154.2E---80.2------
08/27/2026 12:56 PM1.3154.0E---80.1------
08/27/2026 12:26 PM1.3153.9E---80.1------
08/27/2026 11:56 AM1.3153.8ENE---79.7------
08/27/2026 11:26 AM1.6153.6E---79.5------
08/27/2026 10:56 AM1.6153.4E---79.3------
08/27/2026 10:26 AM1.643.3SE---79.3------
08/27/2026 09:56 AM2.043.3SE---79.2------
08/27/2026 09:26 AM1.6153.4ESE---79.2------
08/27/2026 08:56 AM1.643.4SE---79.2------
08/27/2026 08:26 AM1.643.5SE---79.0------
08/27/2026 07:56 AM1.643.5SE---79.0------
08/27/2026 07:26 AM2.043.5SE---79.0------
08/27/2026 06:56 AM2.043.5SE---79.0------
08/27/2026 06:26 AM2.043.5SE---79.0------
08/27/2026 05:56 AM2.043.6SE---78.8------
08/27/2026 05:26 AM2.043.7SE---78.8------
08/27/2026 04:56 AM2.043.7ESE---78.6------
08/27/2026 04:26 AM2.043.7SE---78.6------
08/27/2026 03:56 AM2.043.6SE---78.6------
08/27/2026 03:26 AM2.043.6SE---78.6------
08/27/2026 02:56 AM2.043.7ESE---78.8------
08/27/2026 02:26 AM2.053.8SE---78.8------
08/27/2026 01:56 AM2.343.8SE---79.0------
08/27/2026 01:26 AM2.343.7SE---79.2------
08/27/2026 12:56 AM2.643.8SE---79.3------
08/27/2026 12:26 AM2.643.6SE---79.2------
08/26/2026 11:56 PM2.343.5SE---79.3------
08/26/2026 11:26 PM2.343.3SE---79.3------
08/26/2026 10:56 PM2.633.2SE---79.5------
08/26/2026 10:26 PM2.333.1SE---79.5------
08/26/2026 09:56 PM2.033.0SE---79.9------
08/26/2026 09:26 PM2.033.1SE---80.2------
08/26/2026 08:56 PM2.043.2SE---80.4------
08/26/2026 08:26 PM2.033.2SE---80.6------
08/26/2026 07:56 PM2.043.1SE---80.8------
08/26/2026 06:26 PM2.043.0SE---81.3------
08/26/2026 05:56 PM2.043.2ESE---81.5------
08/26/2026 05:26 PM2.043.2SE---81.5------
08/26/2026 04:56 PM2.043.5SE---81.3------
08/26/2026 04:26 PM2.053.7SE---81.5------
08/26/2026 03:56 PM2.043.8ESE---81.9------
08/26/2026 03:26 PM2.043.6ESE---81.9------
08/26/2026 02:56 PM1.643.6ESE---81.5------
08/26/2026 02:26 PM1.643.5ESE---81.7------
08/26/2026 01:56 PM2.043.4ESE---81.7------
08/26/2026 01:26 PM2.043.4ESE---81.5------
08/26/2026 12:56 PM1.643.4SE---81.3------
08/26/2026 12:26 PM1.643.3SE---81.3------
08/26/2026 11:56 AM1.643.5SE---81.3------
08/26/2026 11:26 AM1.643.4SE---81.5------
08/26/2026 10:56 AM1.643.6ESE---81.7------
08/26/2026 10:26 AM1.653.6ESE---81.9------
08/26/2026 09:56 AM1.653.9ESE---82.0------
08/26/2026 09:26 AM1.654.1ESE---82.2------
08/26/2026 08:56 AM1.3124.3E---82.2------
08/26/2026 08:26 AM1.0124.0E---82.2------
08/26/2026 07:56 AM1.0123.7E---82.4------
08/26/2026 07:26 AM1.3123.4ENE---82.4------
08/26/2026 06:56 AM1.3123.4ENE---82.4------
08/26/2026 06:26 AM1.3123.5E---82.4------
08/26/2026 05:56 AM1.0113.8E---82.4------
08/26/2026 05:26 AM1.0134.3E---82.4------
08/26/2026 04:56 AM1.0114.6E---82.4------
08/26/2026 04:26 AM1.0115.6E---82.6------
08/26/2026 03:56 AM1.0115.6ENE---82.6------
08/26/2026 03:26 AM1.0116.0E---82.4------
08/26/2026 02:56 AM1.0115.8E---82.6------
08/26/2026 02:26 AM1.0116.0E---82.2------
08/26/2026 01:56 AM1.0115.8E---82.2------
08/26/2026 01:26 AM1.085.7E---82.2------
08/26/2026 12:56 AM1.0105.8E---82.2------
08/26/2026 12:26 AM1.0125.8E---82.4------
08/25/2026 11:56 PM1.0125.3ENE---82.4------
08/25/2026 11:26 PM1.0125.5E---82.6------
08/25/2026 10:56 PM1.0115.8E---82.6------
08/25/2026 10:26 PM1.0135.9E---82.4------
08/25/2026 09:56 PM1.0125.8E---82.4------
08/25/2026 09:26 PM1.0126.1E---82.4------
08/25/2026 08:56 PM1.0125.7E---82.2------
08/25/2026 08:26 PM1.0115.5E---82.2------
08/25/2026 07:56 PM1.0114.8E---82.0------
08/25/2026 06:56 PM1.0114.5E---81.9------
08/25/2026 06:26 PM1.0124.5E---81.5------
08/25/2026 05:56 PM1.0124.0E---81.3------
08/25/2026 05:26 PM1.3114.0E---80.8------
08/25/2026 04:56 PM1.3123.5E---81.1------
08/25/2026 04:26 PM1.3113.4ENE---81.3------
08/25/2026 03:56 PM1.0113.9E---81.5------
08/25/2026 03:26 PM1.0124.6E---81.3------
08/25/2026 02:56 PM1.0124.5E---81.1------
08/25/2026 02:26 PM1.0114.4E---81.3------
08/25/2026 01:56 PM1.0124.4E---81.3------
08/25/2026 01:26 PM1.0124.8E---81.3------
08/25/2026 12:56 PM1.0114.7E---81.5------
08/25/2026 12:26 PM1.0114.2ESE---81.7------
08/25/2026 11:56 AM1.3124.6E---81.5------
08/25/2026 11:26 AM1.3124.2E---81.1------
08/25/2026 10:56 AM1.3124.0E---80.8------
08/25/2026 10:26 AM1.3123.9E---80.8------
08/25/2026 09:56 AM1.3123.7E---80.8------
08/25/2026 09:26 AM1.3123.8E---80.8------
08/25/2026 08:56 AM1.3123.6E---81.1------
08/25/2026 08:26 AM1.3123.4E---81.1------
08/25/2026 07:56 AM1.3123.6E---81.1------
08/25/2026 07:26 AM1.3123.4E---81.1------
08/25/2026 06:56 AM1.3123.7E---81.1------
08/25/2026 06:26 AM1.3133.4E---81.0------
08/25/2026 05:56 AM1.3123.5E---81.3------
08/25/2026 05:26 AM1.3133.7E---81.5------
08/25/2026 04:56 AM1.3123.8E---81.9------
08/25/2026 04:26 AM1.3124.1E---82.4------
08/25/2026 03:56 AM1.6123.9E---82.4------
08/25/2026 03:26 AM1.3123.7E---82.6------
08/25/2026 02:56 AM1.6113.5E---82.8------
08/25/2026 02:26 AM1.6123.4ENE---82.9------
08/25/2026 01:56 AM1.6123.5E---83.1------
08/25/2026 01:26 AM1.6124.0E---83.3------
08/25/2026 12:56 AM1.6123.9E---83.5------
08/25/2026 12:26 AM1.6134.1E---83.7------
08/24/2026 11:56 PM1.6134.0E---83.7------
08/24/2026 11:26 PM1.6134.0E---83.8------
08/24/2026 10:56 PM1.6134.0E---83.8------
08/24/2026 10:26 PM1.6133.8E---83.8------
08/24/2026 09:56 PM2.0133.5E---83.7------
08/24/2026 09:26 PM2.0133.4E---83.5------
08/24/2026 08:56 PM2.0133.3E---83.5------
08/24/2026 08:26 PM2.0133.4E---83.3------
08/24/2026 07:56 PM2.3133.3E---83.1------
08/24/2026 07:26 PM2.333.2SSE---82.9------
08/24/2026 06:56 PM2.333.1SSE---82.9------
08/24/2026 06:26 PM2.333.1SSE---82.9------
All NDBC fields for the Aug 27, 10:26 PM EDT observation

Waves

Wave HeightWVHT2.0 ft
Dominant Wave PeriodDPD4 sec
Average Wave PeriodAPD3.6 sec
Mean Wave DirectionMWDSE (132 deg true)
Swell HeightSwH0.7 ft
Swell PeriodSwP14.3 sec
Swell DirectionSwDENE
Wind Wave HeightWWH2.0 ft
Wind Wave PeriodWWP3.7 sec
Wind Wave DirectionWWDSE
Wave SteepnessSTEEPNESSnot reported

Wind

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

Sea

Water TemperatureWTMP79.7 °F
TideTIDEnot reported
SalinitySALnot reported
Ocean TemperatureOTMPnot reported
Surface CurrentADCPnot reported

Air

Atmospheric PressurePRESnot reported
Pressure TendencyPTDYnot reported
Air TemperatureATMPnot reported
Dew PointDEWPnot reported
VisibilityVISnot reported
Lowest 1-min PressureSUPLnot reported

Last 5 days at 41117

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

46 days · 2,135 observations · added by SeaLegs AI

Is today normal at St. Augustine?

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
5.6ft
Top gust
-kt
Water vs Jul 14
-3.6°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
76.3%
2–4 ft
21.5%
4–6 ft
2.2%
6–8 ft
0.0%
8+ ft
0.0%

8 readings in 10 were under 2 ft. Seas never topped 6 ft in the window.

About station 41117

St. Augustine buoy 41117 is the offshore reference for boaters and anglers working these waters.

HullWaverider Buoy
Site elevationsea level
Water depth23.3 m · 76 ft
Air temp height2 m above site elevation
Sea temp depth0.46 m below water line
OwnerU.S. Army Corps of Engineers
ProgramIOOS Partners
ReportsEvery 30 min (wave buoy)
Historical dataNDBC archive ↗
Right whales are active off FL from November to April. Speed restrictions of 10 knots apply to vessels 65 feet or greater in specific areas and times along the U.S. East Coast. It is illegal to approach right whales within 500 yards. To learn more about right whales and rules protecting them, go to: http://www.nmfs.noaa.gov/pr/shipstrike

Questions about buoy 41117

Where is buoy 41117?

NDBC station 41117 is moored at 29.999°N, 81.079°W — St. Augustine, FL (194), in 23.3 m of water. The closest other reporting station is St. Augustine, FL (SAUF1), 13 nm to the SW.

How big are the waves at the St. Augustine buoy right now?

As of the Aug 27, 10:26 PM EDT report, 41117 shows 2.0 ft significant wave height on a 4-second dominant period from the SE. Over the past 46 days, 76% of readings were under 2 ft and the biggest day reached 5.6 ft.

What is the water temperature at St. Augustine buoy?

Water temperature at the buoy is 79.7°F. That is 4°F cooler 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 St. Augustine will do tomorrow, and whether your boat should be out in it, that's the app.

Per-vessel go / no-go for St. Augustine

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

Observations: NOAA National Data Buoy Center, station 41117, 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 ↗