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

TIDE TIMES for Wednesday, June 17, 2026
The tide is currently rising in Brant Rock, Green Harbor River, MA.
Next low tide : 7:49 pm (0.0 ft)
Next high tide : in 4h 45m at 1:53 pm (9.7 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Crescent (9% illuminated)
Tide Station Location : Station #8446009
Common Questions About Tides

Brant Rock, Green Harbor River, MA Tides - Sep 2021

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:427.57:578.61:231.51:352.26:087:16Waning Crescent1Wed
2Thu8:397.58:528.72:201.52:302.26:097:14Waning Crescent2Thu
3Fri9:317.79:429.03:141.33:221.96:107:12Waning Crescent3Fri
4Sat10:188.010:299.34:031.04:111.66:117:11Waning Crescent4Sat
5Sun11:018.411:139.74:480.74:561.26:127:09New Moon5Sun
6Mon11:428.911:5510.05:300.35:400.76:137:07New Moon6Mon
7Tue12:219.36:100.06:240.36:147:06New Moon7Tue
8Wed12:3710.21:019.86:50-0.27:08-0.16:157:04New Moon8Wed
9Thu1:2010.31:4210.27:32-0.37:54-0.46:167:02Waxing Crescent9Thu
10Fri2:0610.22:2710.58:16-0.38:43-0.66:177:00Waxing Crescent10Fri
11Sat2:5510.03:1610.69:02-0.19:36-0.66:186:59Waxing Crescent11Sat
12Sun3:489.74:0910.69:530.110:32-0.56:196:57First Quarter12Sun
13Mon4:459.35:0610.410:490.511:32-0.26:216:55First Quarter13Mon
14Tue5:488.96:0910.211:490.86:226:53First Quarter14Tue
15Wed6:558.77:1710.112:370.012:531.06:236:52Waxing Gibbous15Wed
16Thu8:038.78:2410.11:430.12:001.06:246:50Waxing Gibbous16Thu
17Fri9:088.99:2710.22:480.03:030.86:256:48Waxing Gibbous17Fri
18Sat10:079.210:2510.33:48-0.14:030.66:266:46Waxing Gibbous18Sat
19Sun10:599.411:1710.34:41-0.14:570.46:276:45Full Moon19Sun
20Mon11:469.65:29-0.15:450.26:286:43Full Moon20Mon
21Tue12:0410.212:279.76:120.06:300.26:296:41Full Moon21Tue
22Wed12:469.91:069.76:520.27:110.26:306:39Full Moon22Wed
23Thu1:269.61:439.67:300.57:510.36:316:38Waning Gibbous23Thu
24Fri2:069.22:209.48:080.88:320.56:326:36Waning Gibbous24Fri
25Sat2:468.92:599.28:471.29:150.76:336:34Waning Gibbous25Sat
26Sun3:298.53:429.09:291.510:011.06:346:32Waning Gibbous26Sun
27Mon4:158.14:288.710:151.910:511.36:356:31Third Quarter27Mon
28Tue5:067.85:208.511:052.211:451.56:366:29Third Quarter28Tue
29Wed6:027.56:168.411:592.46:376:27Third Quarter29Wed
30Thu7:017.57:168.412:421.612:572.46:386:25Third Quarter30Thu
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 4:51 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 spring phase. Tonight's moon is 9% 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 near their weekly maximum.

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 Waxing Crescent (9% illuminated). This places Brant Rock, Green Harbor River, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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