Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 4h 40m at 3:34 pm (0.2 ft)
Next high tide : 10:03 pm (4.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Aug 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:282.84:573.610:100.611:500.75:378:02Waning Crescent1Tue
2Wed5:303.05:573.811:060.55:388:00Waning Crescent2Wed
3Thu6:263.36:484.012:350.611:57 AM0.35:397:59Waning Crescent3Thu
4Fri7:153.67:354.31:180.412:460.25:407:58New Moon4Fri
5Sat8:013.98:204.62:010.21:350.05:417:57New Moon5Sat
6Sun8:474.29:054.82:430.02:25-0.15:427:56New Moon6Sun
7Mon9:344.49:524.83:22-0.13:15-0.25:437:54New Moon7Mon
8Tue10:224.610:404.73:59-0.24:05-0.15:447:53Waxing Crescent8Tue
9Wed11:124.711:314.54:36-0.24:540.05:457:52Waxing Crescent9Wed
10Thu12:054.75:14-0.25:460.25:467:51Waxing Crescent10Thu
11Fri12:244.21:004.75:550.06:460.45:477:49First Quarter11Fri
12Sat1:204.01:564.66:430.28:140.65:487:48First Quarter12Sat
13Sun2:183.72:544.57:410.410:020.75:497:47First Quarter13Sun
14Mon3:193.53:584.48:510.511:150.65:507:45Waxing Gibbous14Mon
15Tue4:253.55:064.410:090.65:517:44Waxing Gibbous15Tue
16Wed5:333.66:104.412:110.611:19 AM0.55:527:42Waxing Gibbous16Wed
17Thu6:333.87:054.512:590.512:150.45:537:41Waxing Gibbous17Thu
18Fri7:254.07:534.61:410.41:020.45:547:39Full Moon18Fri
19Sat8:124.28:374.62:160.41:470.35:557:38Full Moon19Sat
20Sun8:564.39:184.52:440.32:310.35:567:37Full Moon20Sun
21Mon9:384.39:574.33:110.33:130.35:577:35Full Moon21Mon
22Tue10:184.210:344.13:390.23:540.35:587:33Waning Gibbous22Tue
23Wed10:564.111:123.84:090.24:330.45:597:32Waning Gibbous23Wed
24Thu11:353.911:513.54:410.35:120.56:007:30Waning Gibbous24Thu
25Fri12:133.75:140.45:530.76:017:29Waning Gibbous25Fri
26Sat12:313.212:523.65:490.56:390.96:027:27Third Quarter26Sat
27Sun1:143.01:333.56:300.77:401.16:037:26Third Quarter27Sun
28Mon2:002.92:183.47:200.89:091.16:047:24Third Quarter28Mon
29Tue2:502.93:113.48:230.810:311.06:057:22Third Quarter29Tue
30Wed3:482.94:143.59:330.811:260.86:067:21Waning Crescent30Wed
31Thu4:543.15:223.710:390.66:077:19Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

Common Questions About Mattapoisett Harbor, MA Tides

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What time does the tide turn (slack tide) in Mattapoisett Harbor, MA today?

Slack tide in Mattapoisett Harbor, MA is approximately 6:48 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 Mattapoisett Harbor, MA?

Mattapoisett Harbor, MA is currently in a spring phase. Tonight's moon is 96% 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 Mattapoisett Harbor, 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 Mattapoisett Harbor, MA?

Tide predictions for Mattapoisett Harbor, 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 Mattapoisett Harbor, MA?

Tide data for Mattapoisett Harbor, MA is sourced from NOAA Station #8447531. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8447531.

What is the moon phase in Mattapoisett Harbor, MA tonight?

Tonight the moon over Mattapoisett Harbor, MA is Waning Gibbous (96% illuminated). This places Mattapoisett Harbor, 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