Nearby Harbors
41.6567’ N, 70.8133’ W

Mattapoisett Harbor, MA

64°
H 66°
L 54°
NNE
13mph
High tide
4:58 pm
Photo Credits

Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Monday, September 21, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 11:29 pm (0.8 ft)
Next high tide : in 4h 11m at 4:58 pm (3.3 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

Cape Yachts

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Mattapoisett Harbor, MA Tides - May 1865

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:124.012:423.86:150.55:500.64:436:45First Quarter1Mon
2Tue1:073.61:373.67:490.77:060.84:416:46First Quarter2Tue
3Wed2:023.42:333.58:490.78:440.84:406:47First Quarter3Wed
4Thu2:593.23:303.59:290.79:450.74:396:48First Quarter4Thu
5Fri3:573.24:263.610:010.610:290.64:386:49Waxing Gibbous5Fri
6Sat4:503.25:143.810:320.411:080.44:366:50Waxing Gibbous6Sat
7Sun5:353.35:553.911:060.311:470.24:356:51Waxing Gibbous7Sun
8Mon6:143.46:324.111:410.24:346:52Waxing Gibbous8Mon
9Tue6:503.57:074.212:270.112:180.14:336:53Full Moon9Tue
10Wed7:263.67:424.21:080.012:560.04:326:54Full Moon10Wed
11Thu8:043.68:194.21:480.01:340.04:316:55Full Moon11Thu
12Fri8:433.68:574.22:26-0.12:130.04:306:56Full Moon12Fri
13Sat9:253.69:404.13:020.02:510.14:296:57Waning Gibbous13Sat
14Sun10:103.610:274.13:380.03:310.14:286:58Waning Gibbous14Sun
15Mon11:003.611:184.04:160.14:150.24:276:59Waning Gibbous15Mon
16Tue11:533.64:590.25:060.34:267:00Third Quarter16Tue
17Wed12:133.912:483.85:510.26:100.54:257:01Third Quarter17Wed
18Thu1:093.91:444.06:540.37:300.54:247:02Third Quarter18Thu
19Fri2:083.92:444.28:020.28:590.44:237:03Third Quarter19Fri
20Sat3:103.93:464.59:060.110:130.14:227:04Waning Crescent20Sat
21Sun4:154.04:484.810:02-0.111:12-0.14:217:05Waning Crescent21Sun
22Mon5:164.25:465.110:52-0.24:207:06Waning Crescent22Mon
23Tue6:124.46:395.312:05-0.211:41 AM-0.34:207:07New Moon23Tue
24Wed7:054.57:305.412:58-0.312:29-0.34:197:08New Moon24Wed
25Thu7:564.68:205.31:51-0.31:19-0.34:187:09New Moon25Thu
26Fri8:464.59:105.02:40-0.22:08-0.24:187:10Waxing Crescent26Fri
27Sat9:374.410:004.73:23-0.12:560.04:177:10Waxing Crescent27Sat
28Sun10:284.210:514.34:020.13:430.24:167:11Waxing Crescent28Sun
29Mon11:214.011:424.04:400.34:290.44:167:12Waxing Crescent29Mon
30Tue12:143.85:220.55:210.74:157:13First Quarter30Tue
31Wed12:333.61:053.76:110.66:230.84:157:14First Quarter31Wed
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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