Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 6h 02m at 10:34 pm (0.5 ft)
Next high tide (tomorrow) : 4:24 am (3.4 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Aug 1992

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:375.210:594.94:10-0.44:27-0.25:388:01Waxing Crescent1Sat
2Sun11:315.111:524.64:50-0.35:190.05:397:59Waxing Crescent2Sun
3Mon12:265.05:30-0.16:160.35:407:58Waxing Crescent3Mon
4Tue12:464.21:224.76:130.17:330.65:417:57First Quarter4Tue
5Wed1:423.92:184.57:040.49:200.85:427:56First Quarter5Wed
6Thu2:393.63:174.28:060.610:350.85:437:55First Quarter6Thu
7Fri3:393.44:204.09:220.811:300.85:447:53Waxing Gibbous7Fri
8Sat4:433.35:254.010:330.85:457:52Waxing Gibbous8Sat
9Sun5:463.46:214.012:130.811:26 AM0.75:467:51Waxing Gibbous9Sun
10Mon6:393.67:084.112:470.712:090.65:477:49Waxing Gibbous10Mon
11Tue7:253.77:494.21:140.612:500.55:487:48Full Moon11Tue
12Wed8:063.98:264.21:430.41:320.45:497:47Full Moon12Wed
13Thu8:434.09:004.12:150.32:140.35:507:45Full Moon13Thu
14Fri9:194.09:334.12:480.22:570.35:517:44Full Moon14Fri
15Sat9:534.010:063.93:200.23:370.35:527:42Waning Gibbous15Sat
16Sun10:273.910:413.83:510.14:140.35:537:41Waning Gibbous16Sun
17Mon11:023.911:193.64:220.24:500.55:547:40Waning Gibbous17Mon
18Tue11:403.84:530.25:260.65:557:38Waning Gibbous18Tue
19Wed12:023.412:233.85:260.36:060.75:567:37Third Quarter19Wed
20Thu12:503.31:123.86:070.46:580.85:577:35Third Quarter20Thu
21Fri1:423.22:053.86:570.58:120.95:587:34Third Quarter21Fri
22Sat2:383.23:043.98:020.59:500.85:597:32Third Quarter22Sat
23Sun3:403.44:104.19:150.411:040.66:007:30Waning Crescent23Sun
24Mon4:473.65:194.310:290.211:560.36:017:29Waning Crescent24Mon
25Tue5:524.06:214.711:340.06:027:27Waning Crescent25Tue
26Wed6:504.57:165.012:420.012:33-0.26:037:26New Moon26Wed
27Thu7:435.08:075.21:26-0.21:30-0.46:047:24New Moon27Thu
28Fri8:345.38:575.22:10-0.42:26-0.46:057:23New Moon28Fri
29Sat9:245.59:465.12:54-0.43:21-0.46:067:21New Moon29Sat
30Sun10:155.510:364.83:36-0.44:12-0.26:077:19Waxing Crescent30Sun
31Mon11:065.311:284.54:16-0.35:010.06:087:18Waxing Crescent31Mon
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 1:29 am — 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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