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

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in Brant Rock, Green Harbor River, MA.
Next low tide : in 2h 59m at 3:07 pm (2.0 ft)
Next high tide : 9:32 pm (9.0 ft)
Sunset today : 8:09 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8446009
Common Questions About Tides

Brant Rock, Green Harbor River, MA Tides - Sep 2082

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:598.57:2110.012:410.112:551.16:087:15Waxing Gibbous1Tue
2Wed8:088.48:289.91:480.32:011.26:097:14Waxing Gibbous2Wed
3Thu9:148.59:319.92:540.33:051.16:107:12Waxing Gibbous3Thu
4Fri10:128.710:279.93:530.34:041.06:127:10Waxing Gibbous4Fri
5Sat11:028.911:169.84:450.34:550.96:137:09Full Moon5Sat
6Sun11:469.011:599.75:300.35:410.86:147:07Full Moon6Sun
7Mon12:239.16:090.46:220.76:157:05Full Moon7Mon
8Tue12:389.512:579.26:440.67:000.76:167:04Full Moon8Tue
9Wed1:159.31:319.27:190.87:380.76:177:02Waning Gibbous9Wed
10Thu1:519.02:059.17:541.08:160.76:187:00Waning Gibbous10Thu
11Fri2:288.72:419.18:301.38:570.96:196:58Waning Gibbous11Fri
12Sat3:098.43:218.99:101.69:411.16:206:57Waning Gibbous12Sat
13Sun3:528.04:058.89:531.910:291.36:216:55Third Quarter13Sun
14Mon4:417.74:558.610:412.111:221.56:226:53Third Quarter14Mon
15Tue5:357.45:508.511:332.36:236:51Third Quarter15Tue
16Wed6:347.36:508.512:191.612:312.46:246:50Third Quarter16Wed
17Thu7:347.47:508.81:191.51:302.26:256:48Waning Crescent17Thu
18Fri8:317.88:469.12:161.22:281.86:266:46Waning Crescent18Fri
19Sat9:238.39:399.63:090.93:221.36:276:44Waning Crescent19Sat
20Sun10:119.010:3010.03:580.44:130.66:286:43Waning Crescent20Sun
21Mon10:579.711:1810.44:440.05:03-0.16:296:41New Moon21Mon
22Tue11:4210.45:30-0.45:52-0.86:306:39New Moon22Tue
23Wed12:0710.612:2711.06:14-0.66:41-1.26:316:37New Moon23Wed
24Thu12:5510.61:1311.37:00-0.77:31-1.56:326:35Waxing Crescent24Thu
25Fri1:4410.52:0111.57:47-0.68:23-1.46:336:34Waxing Crescent25Fri
26Sat2:3610.12:5311.38:38-0.39:17-1.26:346:32Waxing Crescent26Sat
27Sun3:329.73:4911.09:320.110:15-0.76:366:30First Quarter27Sun
28Mon4:319.24:5010.510:300.611:16-0.26:376:28First Quarter28Mon
29Tue5:348.85:5510.011:321.06:386:27First Quarter29Tue
30Wed6:438.57:049.712:220.212:391.26:396:25First Quarter30Wed
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 6:19 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 86% 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 Gibbous (86% 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