TideAhead
MassachusettsNOAA 8446009

Brant Rock, Green Harbor River Tides & Coastal Conditions

Official tide predictions, weather observations and forecasts, marine-grid context, astronomy, and jurisdiction-specific rules for this NOAA station.

All official layers availableUpdated 12:52 AM EDT

Current Conditions

Tide predictions are relative to MLLW. NWS point and marine-grid forecasts can differ at exposed shorelines.

Estimated tide now
5.9ft
falling · Station 8446009
Next low tide
4:14 AM
Thu, Sep 241.0 ft
Next high tide
10:29 AM
Thu, Sep 248.5 ft
Current Weather
55°F

Mostly Cloudy

Observed

ENE 10 mph

Observed
Tide Forecast
NOAA Brant Rock, Green Harbor River · Station 8446009 · MLLW datum · local time
currentOfficial NOAA curve
-1 ft2 ft5 ft8 ft11 ft1.0 ft8.5 ft1.2 ft9.2 ft0.8 ft9.0 ft0.7 ft9.4 ftThu, Sep 2412:30 AMThu, Sep 2412:30 PMFri, Sep 2512:30 AMFri, Sep 2512:30 PMSat, Sep 2612:30 AM
Official NOAA predicted heights relative to MLLW. Times are shown in the place's local timezone.

Weather, Light & Marine

Conditions that affect shoreline access, small craft, fishing and surf.

Air

Temperature55°FObserved

Humidity67%Observed

Pressure1032 mbObserved

Wind

SustainedENE 10 mphObserved

Gusts17 mphObserved

Rain chance0%Model

Marine

Wave height0.0 ftModel

DirectionCalm / No DirectionModel

WaterUnavailable
Sun & Moon

Sunrise6:32 AM

Sunset6:36 PM

MoonWaxing Gibbous

Hourly Forecast
Model
National Weather Service point forecast when the live feed is available.
Local date & timeConditionsTempWindGustsRain
Thu, Sep 24, 202612:00 AMPartly Cloudy57°FNE 16 mph28 mph0%
Thu, Sep 24, 20261:00 AMPartly Cloudy57°FNE 17 mph28 mph0%
Thu, Sep 24, 20262:00 AMMostly Cloudy56°FNE 17 mph29 mph0%
Thu, Sep 24, 20263:00 AMPartly Cloudy56°FNE 18 mph30 mph0%
Thu, Sep 24, 20264:00 AMMostly Cloudy56°FNE 20 mph30 mph1%
Thu, Sep 24, 20265:00 AMMostly Cloudy56°FNE 20 mph31 mph1%
Thu, Sep 24, 20266:00 AMPartly Sunny55°FNE 21 mph32 mph2%
Thu, Sep 24, 20267:00 AMMostly Sunny56°FNE 21 mph32 mph2%
Thu, Sep 24, 20268:00 AMMostly Sunny57°FNE 21 mph32 mph3%
Thu, Sep 24, 20269:00 AMPartly Sunny58°FNE 22 mph33 mph2%
Thu, Sep 24, 202610:00 AMMostly Sunny59°FNE 22 mph35 mph1%
Thu, Sep 24, 202611:00 AMPartly Sunny59°FNE 21 mph33 mph1%

Fishing, Crabbing & Surfing Analysis

These scores use the available tide, wind, and marine data. They do not predict catches, report local activity, or replace safety notices.

76/100 · Good
Fishing
Environmental planning guidance, not a catch guarantee.

Best planning window

2 hours around the next tide change

  • Manageable wind10 mph sustained wind
  • Mostly dry0% precipitation chance
  • Falling tideConditions vary by species and shoreline structure
57/100 · Fair
Crabbing
Conditions are secondary to seasons, closures and safety.

Best planning window

Near slack water, if the marine area is open

  • Regulations requiredConfirm the marine area is open before setting gear
  • Large tidal exchange7.5 ft can increase current around gear
23/100 · Poor
Surfing
Offshore model guidance with nearshore uncertainty.

Best planning window

Compare swell direction, local wind and tide before leaving

  • Limited swell0.0 ft NWS forecast waves
  • Short period0s dominant period
  • Nearshore uncertaintyOffshore model conditions are not the same as breaking-wave height at this beach
Massachusetts Division of Marine Fisheries fishing rulesMassachusetts · state or territoryNOAA Fisheries federal recreational fishing resourcesU.S. federal waters · federalNational Weather Service rip-current safetyUnited States · safety
Nearby NOAA Tide Stations
Official station locations from the national NOAA CO-OPS tide-prediction catalog.

Duxbury, Duxbury Harbor

NOAA 8446166 · MA

3.3 mi

Damons Point, North River

NOAA 8445425 · MA

6.9 mi

Plymouth

NOAA 8446493 · MA

8.6 mi

Scituate, Scituate Harbor

NOAA 8445138 · MA

9.2 mi

Cohasset Harbor (White Head)

NOAA 8444762 · MA

13.4 mi

Hingham

NOAA 8444775 · MA

16.6 mi

Sources And Confidence

NOAA CO-OPS tide predictions at Brant Rock, Green Harbor Riverofficial-forecast

Fetched Thu, Sep 24 at 12:52 AM

National Weather Service observation and hourly forecastofficial-forecast

Fetched Thu, Sep 24 at 12:52 AM

National Weather Service coastal marine gridofficial-forecast

Fetched Thu, Sep 24 at 12:52 AM

U.S. Naval Observatory astronomical applicationsofficial-calculation

Fetched Thu, Sep 24 at 12:52 AM

Not for navigation. Conditions can change faster than source update intervals. Always check local warnings, closures and on-site conditions.