Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 12:39 am (0.2 ft)
Next high tide : in 6h 16m at 6:05 pm (4.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Aug 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed4:262.85:083.510:010.811:350.95:378:01Waxing Gibbous1Wed
2Thu5:282.96:043.611:010.75:388:00Waxing Gibbous2Thu
3Fri6:213.16:493.812:200.711:52 AM0.55:397:59Waxing Gibbous3Fri
4Sat7:063.47:284.01:010.512:390.45:407:58Waxing Gibbous4Sat
5Sun7:473.68:054.21:410.31:240.35:417:56Full Moon5Sun
6Mon8:263.98:434.42:180.22:080.15:427:55Full Moon6Mon
7Tue9:064.19:234.42:530.02:520.15:437:54Full Moon7Tue
8Wed9:484.310:054.43:26-0.13:350.15:447:53Waning Gibbous8Wed
9Thu10:314.410:504.33:58-0.14:170.15:457:51Waning Gibbous9Thu
10Fri11:174.411:384.14:31-0.15:000.25:467:50Waning Gibbous10Fri
11Sat12:074.55:08-0.15:480.35:477:49Waning Gibbous11Sat
12Sun12:313.91:014.55:500.06:450.65:487:47Third Quarter12Sun
13Mon1:273.71:584.46:400.28:080.75:497:46Third Quarter13Mon
14Tue2:263.62:584.47:420.310:110.75:507:45Third Quarter14Tue
15Wed3:283.54:054.48:550.411:230.65:517:43Waning Crescent15Wed
16Thu4:373.65:164.410:150.45:527:42Waning Crescent16Thu
17Fri5:443.96:204.612:180.511:27 AM0.35:537:40Waning Crescent17Fri
18Sat6:434.27:154.81:060.312:260.15:547:39Waning Crescent18Sat
19Sun7:364.58:044.91:480.21:190.15:557:37New Moon19Sun
20Mon8:254.78:494.82:260.12:090.05:567:36New Moon20Mon
21Tue9:114.89:334.72:580.02:560.05:577:34New Moon21Tue
22Wed9:564.810:154.43:260.03:390.15:587:33Waxing Crescent22Wed
23Thu10:404.610:574.13:540.14:190.25:597:31Waxing Crescent23Thu
24Fri11:244.411:403.74:250.24:580.46:007:30Waxing Crescent24Fri
25Sat12:084.14:580.35:380.66:017:28Waxing Crescent25Sat
26Sun12:243.412:533.85:350.56:230.86:037:27First Quarter26Sun
27Mon1:103.11:393.66:160.77:211.06:047:25First Quarter27Mon
28Tue1:563.02:273.47:080.88:441.16:057:23First Quarter28Tue
29Wed2:452.83:193.38:130.910:111.16:067:22First Quarter29Wed
30Thu3:412.84:203.39:290.911:080.96:077:20Waxing Gibbous30Thu
31Fri4:432.95:213.510:380.811:520.76:087:18Waxing Gibbous31Fri
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 9:22 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 11% 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 Crescent (11% 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