Tides Today & Tomorrow in Brant Rock, Green Harbor River, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Brant Rock, Green Harbor River, MA.
Next low tide : in 2h 51m at 1:02 pm (1.1 ft)
Next high tide : 7:22 pm (9.8 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:15 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8446009
Common Questions About Tides

Brant Rock, Green Harbor River, MA Tides - Nov 2066

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon11:2310.411:559.35:050.45:39-0.47:155:36Full Moon1Mon
2Tue12:0510.35:480.66:22-0.37:175:35Full Moon2Tue
3Wed12:389.112:4410.16:290.97:02-0.17:185:33Full Moon3Wed
4Thu1:188.81:239.87:091.17:430.17:195:32Waning Gibbous4Thu
5Fri1:588.62:039.67:501.38:240.47:205:31Waning Gibbous5Fri
6Sat2:398.32:459.38:321.69:080.77:225:30Waning Gibbous6Sat
7Sun2:228.12:309.08:171.88:540.96:234:29Waning Gibbous7Sun
8Mon3:097.93:198.79:062.09:421.16:244:28Third Quarter8Mon
9Tue3:597.94:118.59:582.110:331.36:254:26Third Quarter9Tue
10Wed4:527.95:078.310:532.111:261.46:274:25Third Quarter10Wed
11Thu5:458.06:048.311:501.96:284:24Third Quarter11Thu
12Fri6:378.36:598.312:181.412:451.66:294:23Waning Crescent12Fri
13Sat7:268.77:518.41:081.31:381.26:304:23Waning Crescent13Sat
14Sun8:129.28:418.61:551.22:280.66:314:22Waning Crescent14Sun
15Mon8:569.79:288.92:411.03:160.16:334:21Waning Crescent15Mon
16Tue9:4110.210:159.13:260.74:03-0.46:344:20New Moon16Tue
17Wed10:2610.711:029.34:120.54:50-0.86:354:19New Moon17Wed
18Thu11:1311.111:509.54:590.35:38-1.26:364:18New Moon18Thu
19Fri12:0111.35:470.16:27-1.36:384:17Waxing Crescent19Fri
20Sat12:409.612:5211.36:370.07:19-1.36:394:17Waxing Crescent20Sat
21Sun1:329.61:4711.17:310.08:13-1.16:404:16Waxing Crescent21Sun
22Mon2:289.62:4510.78:290.19:09-0.86:414:15First Quarter22Mon
23Tue3:269.63:4610.39:300.210:07-0.56:424:15First Quarter23Tue
24Wed4:279.64:509.910:330.311:06-0.26:434:14First Quarter24Wed
25Thu5:309.75:569.511:390.36:454:14First Quarter25Thu
26Fri6:329.87:029.212:070.112:440.36:464:13Waxing Gibbous26Fri
27Sat7:3110.08:049.01:060.31:460.16:474:13Waxing Gibbous27Sat
28Sun8:2510.19:018.92:010.52:430.06:484:12Waxing Gibbous28Sun
29Mon9:1510.19:528.82:530.73:350.06:494:12Waxing Gibbous29Mon
30Tue10:0110.010:388.63:410.94:210.06:504:12Full Moon30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8446009)

Common Questions About Brant Rock, Green Harbor River, MA Tides

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What time does the tide turn (slack tide) in Brant Rock, Green Harbor River, MA today?

Slack tide in Brant Rock, Green Harbor River, MA is approximately 4:12 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Brant Rock, Green Harbor River, MA?

Brant Rock, Green Harbor River, MA is currently in a transitional phase. Tonight's moon is 30% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Brant Rock, Green Harbor River, MA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Brant Rock, Green Harbor River, MA?

Tide predictions for Brant Rock, Green Harbor River, MA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Brant Rock, Green Harbor River, MA?

Tide data for Brant Rock, Green Harbor River, MA is sourced from NOAA Station #8446009. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8446009.

What is the moon phase in Brant Rock, Green Harbor River, MA tonight?

Tonight the moon over Brant Rock, Green Harbor River, MA is Waning Crescent (30% illuminated). This places Brant Rock, Green Harbor River, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA