1. Buoys
  2. Mid-Atlantic
  3. 44025
NDBC Station · LLNR 83044025

Long Island Buoy 44025 — 30 NM South of Islip, NY

Owned and maintained by National Data Buoy Center3-meter foam buoy
Map ↗
LiveConditions at 44025 as of Aug 27, 10:10 PM EDT· NDBC reports every 10 min
Current conditions
Wave height WVHT
2.6ft9sDPD4.6sAPD
from E
Wind WSPD
no wind sensor
Water temp WTMP
73.2°F
Air temp ATMP
Pressure PRES
BuoyCAM: 360° view from NDBC station 44025
BuoyCAM · six frames around the horizon, refreshed hourly by NDBCImage: NOAA NDBC

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 10:10 PM2.694.6E---73.2------
08/27/2026 09:40 PM3.094.4E---73.4------
08/27/2026 09:10 PM3.0104.5ESE---73.4------
08/27/2026 08:40 PM3.094.3ESE---73.4------
08/27/2026 08:10 PM3.094.4E---73.2------
08/27/2026 07:40 PM3.0124.7ENE---73.2------
08/27/2026 07:10 PM2.654.3SSW---73.2------
08/27/2026 06:40 PM2.644.4SSW---73.2------
08/27/2026 06:10 PM3.084.5SE---73.2------
08/27/2026 05:40 PM3.094.6SE---73.4------
08/27/2026 05:10 PM3.384.5ESE---73.6------
08/27/2026 04:40 PM3.054.5SSW---73.6------
08/27/2026 04:10 PM3.084.5ESE---73.6------
08/27/2026 03:40 PM3.084.5E---73.6------
08/27/2026 03:10 PM2.694.4SW---73.6------
08/27/2026 02:40 PM3.084.4E---73.8------
08/27/2026 02:10 PM3.094.3E---73.8------
08/27/2026 01:10 PM2.694.4SE---73.9------
08/27/2026 11:40 AM2.694.5ESE---73.9------
08/27/2026 11:10 AM2.6124.3E---73.9------
08/27/2026 10:40 AM2.6124.4SE---73.9------
08/27/2026 10:10 AM2.684.5SE---73.9------
08/27/2026 09:10 AM2.694.6ESE---73.8------
08/27/2026 08:40 AM2.6134.5ESE---73.6------
08/27/2026 08:10 AM2.684.7ESE---73.6------
08/27/2026 07:10 AM2.394.5E---73.6------
08/27/2026 06:10 AM2.684.5ESE---73.6------
08/27/2026 05:40 AM2.394.1E---73.6------
08/27/2026 05:10 AM2.384.4ESE---73.6------
08/27/2026 04:40 AM2.3134.2E---73.6------
08/27/2026 04:10 AM2.384.1ESE---73.6------
08/27/2026 03:40 AM2.3134.4ENE---73.6------
08/27/2026 03:10 AM2.083.8ESE---73.6------
08/27/2026 02:40 AM2.033.8SSW---73.6------
08/27/2026 02:10 AM2.084.0ESE---73.6------
08/27/2026 01:40 AM2.084.0SE---73.8------
08/27/2026 01:10 AM2.0113.9E---73.8------
08/27/2026 12:40 AM2.0134.0E---73.8------
08/27/2026 12:10 AM2.0134.1E---73.8------
08/26/2026 10:40 PM2.0144.1ESE---73.8------
08/26/2026 10:10 PM2.0114.0ESE---73.8------
08/26/2026 09:40 PM2.0144.2E---73.8------
08/26/2026 09:10 PM1.6144.4ENE---73.6------
08/26/2026 08:40 PM1.674.5S---73.6------
08/26/2026 08:10 PM1.674.4S---73.6------
08/26/2026 07:40 PM1.674.7S---73.8------
08/26/2026 06:40 PM1.6145.0E---73.8------
08/26/2026 05:10 PM1.6145.6E---74.1------
08/26/2026 04:40 PM1.675.4SSE---74.1------
08/26/2026 03:40 PM1.675.6SSE---74.1------
08/26/2026 03:10 PM1.365.2SE---74.3------
08/26/2026 02:40 PM1.675.5SE----------
08/26/2026 02:10 PM1.665.4SSE---73.8------
08/26/2026 01:40 PM1.6154.9ESE---73.6------
08/26/2026 01:10 PM1.374.9SSE---73.4------
08/26/2026 12:40 PM1.694.6SE---73.4------
08/26/2026 12:10 PM1.674.6SE---73.4------
08/26/2026 11:40 AM1.6114.4SE---73.4------
08/26/2026 11:10 AM1.694.4SSE---73.2------
08/26/2026 10:40 AM1.6114.3SSE---73.2------
08/26/2026 10:10 AM1.674.1SSE---73.2------
08/26/2026 09:40 AM1.694.1SE---73.0------
08/26/2026 09:10 AM1.6113.9ESE---73.0------
08/26/2026 08:40 AM1.6103.9SE---73.0------
08/26/2026 08:10 AM2.074.0SE---72.9------
08/26/2026 07:40 AM2.033.8WSW---72.9------
08/26/2026 07:10 AM1.633.9W---72.9------
08/26/2026 06:40 AM1.633.6W---72.9------
08/26/2026 06:10 AM1.633.8W---72.9------
08/26/2026 05:40 AM2.033.9W----------
08/26/2026 05:10 AM2.033.6WNW---73.0------
08/26/2026 04:40 AM2.033.6WNW---73.0------
08/26/2026 04:10 AM1.633.5WNW---73.0------
08/26/2026 03:40 AM2.033.6W---73.0------
08/26/2026 03:10 AM2.033.7W---73.0------
08/26/2026 02:40 AM2.033.6W---73.2------
08/26/2026 01:40 AM2.033.5WNW---73.2------
08/26/2026 01:10 AM2.033.5W---73.2------
08/26/2026 12:40 AM2.033.5W---73.2------
08/26/2026 12:10 AM1.633.6W---73.2------
08/25/2026 11:40 PM1.673.8SE---73.4------
08/25/2026 11:10 PM1.674.0SSE---73.4------
08/25/2026 10:40 PM1.674.0SE---73.4------
08/25/2026 09:40 PM1.684.2ESE---73.6------
08/25/2026 09:10 PM1.633.9SW---73.6------
08/25/2026 08:40 PM1.6113.8E---73.6------
08/25/2026 08:10 PM1.673.8SE---73.6------
08/25/2026 07:40 PM1.633.5SW---73.6------
08/25/2026 07:10 PM1.673.8SSE---73.6------
08/25/2026 06:40 PM1.6113.7E---73.8------
08/25/2026 06:10 PM2.0113.5E---73.8------
08/25/2026 05:40 PM1.6113.8SE---73.8------
08/25/2026 05:10 PM1.663.7SSE---73.8------
08/25/2026 04:40 PM1.673.9SSE---73.8------
08/25/2026 04:10 PM1.633.7W---73.8------
08/25/2026 03:10 PM2.073.7SSE---73.6------
08/25/2026 02:10 PM2.033.7W---73.6------
08/25/2026 01:10 PM2.033.7W---73.6------
08/25/2026 12:40 PM2.073.9SE---73.6------
08/25/2026 12:10 PM2.073.8SSE---73.6------
08/25/2026 11:40 AM2.074.0SE---73.4------
08/25/2026 11:10 AM2.074.2SE---73.4------
08/25/2026 10:40 AM2.074.2SSE---73.4------
08/25/2026 10:10 AM2.074.3SE---73.2------
08/25/2026 09:40 AM2.374.4SSE---73.2------
08/25/2026 08:40 AM2.3114.2ESE---73.2------
08/25/2026 08:10 AM2.374.1SSE---73.2------
08/25/2026 07:40 AM2.344.1W---73.2------
08/25/2026 07:10 AM2.644.1W---73.2------
08/25/2026 06:10 AM2.644.1W---73.0------
08/25/2026 05:40 AM3.044.1W---73.0------
08/25/2026 05:10 AM3.044.0W---73.0------
08/25/2026 04:40 AM3.054.1W---73.0------
08/25/2026 04:10 AM3.043.9WNW---73.0------
08/25/2026 03:10 AM3.043.9WNW---73.0------
08/25/2026 02:10 AM3.043.8WNW---73.0------
08/25/2026 01:40 AM3.043.8WNW---73.2------
08/25/2026 01:10 AM2.643.9W---73.2------
08/25/2026 12:40 AM2.373.9SE---73.4------
08/25/2026 12:10 AM2.664.1SSE---73.6------
08/24/2026 11:40 PM2.3124.1ESE---73.8------
08/24/2026 11:10 PM2.374.1SSE---73.9------
08/24/2026 10:40 PM2.384.4SE---74.1------
08/24/2026 10:10 PM2.374.4SSE----------
08/24/2026 09:40 PM2.3124.6ESE---74.3------
08/24/2026 09:10 PM2.6124.4E---74.3------
08/24/2026 08:40 PM2.684.4SE---74.3------
08/24/2026 08:10 PM2.364.4SSE---74.5------
08/24/2026 06:10 PM2.374.8S---74.7------
08/24/2026 05:40 PM2.674.9S---74.7------
08/24/2026 05:10 PM2.384.8SSE---74.7------
08/24/2026 04:40 PM2.684.8SSE---74.3------
08/24/2026 03:40 PM2.664.8SSE---74.3------
08/24/2026 03:10 PM2.654.7SSE---74.1------
08/24/2026 01:10 PM2.664.9SSE---73.8------
08/24/2026 12:40 PM2.664.9SE---73.6------
08/24/2026 12:10 PM2.664.9SSE---73.8------
08/24/2026 11:40 AM2.665.1SSE----------
08/24/2026 11:10 AM2.665.1SE---73.9------
08/24/2026 10:40 AM3.055.0SSE---73.8------
08/24/2026 10:10 AM3.065.2SSE---73.9------
08/24/2026 09:10 AM3.075.3SSE---73.9------
08/24/2026 07:40 AM3.065.3SSE---73.9------
08/24/2026 07:10 AM3.365.3SSE---74.1------
08/24/2026 06:40 AM3.365.3SSE---74.1------
08/24/2026 06:10 AM3.065.1SSE---74.1------
08/24/2026 05:40 AM3.065.2SSE---74.1------
08/24/2026 05:10 AM3.075.0SSE---74.1------
08/24/2026 04:40 AM3.074.8SSE---74.1------
08/24/2026 04:10 AM3.374.9SSE---74.1------
All NDBC fields for the Aug 27, 10:10 PM EDT observation

Waves

Wave HeightWVHT2.6 ft
Dominant Wave PeriodDPD9 sec
Average Wave PeriodAPD4.6 sec
Mean Wave DirectionMWDE (101 deg true)
Swell HeightSwHnot reported
Swell PeriodSwPnot reported
Swell DirectionSwDnot reported
Wind Wave HeightWWHnot reported
Wind Wave PeriodWWPnot reported
Wind Wave DirectionWWDnot reported
Wave SteepnessSTEEPNESSnot reported

Wind

Wind DirectionWDIRnot reported
Wind SpeedWSPDnot reported
Wind GustGSTnot reported
Highest 1-min WindSUPL17.5 kts at 1038Z

Sea

Water TemperatureWTMP73.2 °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 44025

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

46 days · 1,809 observations · added by SeaLegs AI

Is today normal at Long Island?

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
8.9ft
Top gust
21kt
Water vs Jul 14
+1.4°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
25.4%
2–4 ft
57.3%
4–6 ft
12.3%
6–8 ft
4.2%
8+ ft
0.8%

3 readings in 10 were under 2 ft. Seas topped 6 ft on 7 days in the window.

About station 44025

Long Island buoy 44025 is the offshore reference for boaters and anglers working these waters.

Hull3-meter foam buoy
PayloadSCOOP
Site elevationsea level
Water depth40.2 m · 132 ft
Air temp height3.7 m above site elevation
Anemometer height4.1 m above site elevation
Barometer elevation2.7 m above mean sea level
Sea temp depth1.5 m below water line
Watch circle radius83 yards
OwnerNational Data Buoy Center
ProgramNDBC Meteorological/Ocean
ReportsEvery 10 min · waves 30 min
Historical dataNDBC archive ↗
Right whales are active off NY from November to April. Speed restrictions of 10 knots apply to vessels 65 feet or greater in specific areas along the mid-Atlantic coast. To learn more about right whales and rules protecting them, go to: http://www.nmfs.noaa.gov/pr/shipstrike

Questions about buoy 44025

Where is buoy 44025?

NDBC station 44025 is moored at 40.258°N, 73.175°W — LONG ISLAND - 30 NM South of Islip, NY, in 40.2 m of water. The closest other reporting station is New York Harbor Entrance - 15 NM SE of Breezy Point, NY (44065), 25 nm to the WNW.

How big are the waves at the Long Island buoy right now?

As of the Aug 27, 10:10 PM EDT report, 44025 shows 2.6 ft significant wave height on a 9-second dominant period from the E. Over the past 46 days, 25% of readings were under 2 ft and the biggest day reached 8.9 ft.

What is the water temperature at Long Island buoy?

Water temperature at the buoy is 73.2°F. That is 1°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 Long Island will do tomorrow, and whether your boat should be out in it, that's the app.

Per-vessel go / no-go for Long Island

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 44025, 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 ↗