Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, June 18, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 4:59 pm (0.0 ft)
Next high tide : in 4h 46m at 11:25 am (4.5 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waxing Crescent (17% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Aug 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:554.210:074.33:320.03:360.15:378:01Waxing Crescent1Thu
2Fri10:374.310:514.24:030.04:170.15:388:00Waxing Crescent2Fri
3Sat11:234.311:384.04:35-0.14:590.25:397:58Waxing Crescent3Sat
4Sun12:124.45:110.05:450.35:407:57Waxing Crescent4Sun
5Mon12:313.91:054.45:530.16:400.55:417:56First Quarter5Mon
6Tue1:263.82:004.46:430.27:520.65:427:55First Quarter6Tue
7Wed2:243.72:594.47:450.39:320.75:437:54First Quarter7Wed
8Thu3:253.64:044.58:570.311:000.55:447:52Waxing Gibbous8Thu
9Fri4:333.75:124.610:140.311:590.45:457:51Waxing Gibbous9Fri
10Sat5:404.06:164.811:250.25:477:50Waxing Gibbous10Sat
11Sun6:414.37:125.012:480.212:250.05:487:48Waxing Gibbous11Sun
12Mon7:354.68:035.11:330.11:20-0.15:497:47Full Moon12Mon
13Tue8:254.88:505.02:150.02:13-0.15:507:46Full Moon13Tue
14Wed9:144.99:364.92:52-0.13:030.05:517:44Full Moon14Wed
15Thu10:004.910:214.63:26-0.13:480.15:527:43Waning Gibbous15Thu
16Fri10:474.711:064.33:590.04:290.25:537:41Waning Gibbous16Fri
17Sat11:334.511:523.94:320.15:090.45:547:40Waning Gibbous17Sat
18Sun12:204.25:080.25:500.75:557:38Waning Gibbous18Sun
19Mon12:393.61:083.95:460.46:390.95:567:37Third Quarter19Mon
20Tue1:273.31:563.66:310.67:451.05:577:35Third Quarter20Tue
21Wed2:153.12:443.47:240.89:191.15:587:34Third Quarter21Wed
22Thu3:053.03:373.38:290.810:311.05:597:32Third Quarter22Thu
23Fri4:013.04:373.39:390.811:210.96:007:31Waning Crescent23Fri
24Sat5:013.15:353.510:420.76:017:29Waning Crescent24Sat
25Sun5:563.36:213.712:020.711:36 AM0.56:027:28Waning Crescent25Sun
26Mon6:423.67:013.912:390.512:220.36:037:26Waning Crescent26Mon
27Tue7:243.97:404.21:130.31:060.16:047:25New Moon27Tue
28Wed8:044.28:194.41:470.11:500.06:057:23New Moon28Wed
29Thu8:444.59:004.42:20-0.12:33-0.16:067:21New Moon29Thu
30Fri9:264.69:434.42:54-0.23:17-0.16:077:20New Moon30Fri
31Sat10:114.710:294.33:29-0.24:00-0.16:087:18Waxing Crescent31Sat
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 2:12 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 17% 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 Waxing Crescent (17% 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