Nearby Harbors
41.6567’ N, 70.8133’ W

Mattapoisett Harbor, MA

53°
H -°
L 52°
NE
4mph
Low tide
11:29 pm
Photo Credits

Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 1h 15m at 11:29 pm (0.8 ft)
Next high tide (tomorrow) : 5:21 am (3.2 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Featured Local Businesses

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Mattapoisett Harbor, MA Tides - Jul 1864

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:393.86:094.612:020.411:00 AM0.34:167:25Waning Crescent1Fri
2Sat6:303.96:574.612:410.411:44 AM0.34:167:25New Moon2Sat
3Sun7:174.07:404.51:170.312:280.34:177:24New Moon3Sun
4Mon8:014.08:214.41:500.31:130.24:187:24New Moon4Mon
5Tue8:434.09:004.22:220.21:590.24:187:24New Moon5Tue
6Wed9:253.99:384.02:540.22:430.34:197:24Waxing Crescent6Wed
7Thu10:063.810:153.83:260.23:260.44:197:23Waxing Crescent7Thu
8Fri10:463.710:533.63:590.34:080.54:207:23Waxing Crescent8Fri
9Sat11:273.611:323.44:330.44:510.64:217:23Waxing Crescent9Sat
10Sun12:083.65:090.45:390.84:227:22First Quarter10Sun
11Mon12:133.212:493.55:500.56:370.94:227:22First Quarter11Mon
12Tue12:573.11:333.66:390.57:450.94:237:21First Quarter12Tue
13Wed1:463.12:223.77:350.58:560.84:247:21First Quarter13Wed
14Thu2:423.13:193.88:340.49:570.64:257:20Waxing Gibbous14Thu
15Fri3:453.24:214.19:330.310:490.44:257:19Waxing Gibbous15Fri
16Sat4:493.55:204.410:290.111:370.14:267:19Waxing Gibbous16Sat
17Sun5:463.96:144.811:22-0.14:277:18Full Moon17Sun
18Mon6:404.27:055.112:25-0.112:15-0.34:287:17Full Moon18Mon
19Tue7:314.67:555.21:14-0.31:09-0.44:297:17Full Moon19Tue
20Wed8:224.88:465.32:03-0.42:05-0.44:307:16Full Moon20Wed
21Thu9:145.09:375.12:49-0.52:59-0.34:317:15Waning Gibbous21Thu
22Fri10:075.010:304.93:32-0.43:53-0.14:327:14Waning Gibbous22Fri
23Sat11:025.011:254.64:15-0.34:480.14:327:13Waning Gibbous23Sat
24Sun11:594.84:59-0.15:570.44:337:13Third Quarter24Sun
25Mon12:214.312:564.75:490.17:470.64:347:12Third Quarter25Mon
26Tue1:184.01:544.56:480.49:110.74:357:11Third Quarter26Tue
27Wed2:163.82:554.37:550.510:140.74:367:10Third Quarter27Wed
28Thu3:183.63:594.29:040.611:050.64:377:09Waning Crescent28Thu
29Fri4:223.65:004.210:000.611:470.64:387:08Waning Crescent29Fri
30Sat5:203.75:534.310:470.54:397:07Waning Crescent30Sat
31Sun6:103.86:384.312:210.511:29 AM0.44:407:05New Moon31Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

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Common Questions About Mattapoisett Harbor, MA Tides

Collapse All
Is this week a spring tide or neap tide in Mattapoisett Harbor, MA?

Mattapoisett Harbor, MA is currently in a transitional phase. Tonight's moon is 75% 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 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 Waxing Gibbous (75% illuminated). This places Mattapoisett Harbor, 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

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