Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 12:39 am (0.3 ft)
Next high tide : in 2h 22m at 5:53 pm (4.6 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 1953

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:393.63:164.17:580.710:480.86:097:17Third Quarter1Tue
2Wed3:423.54:244.09:360.811:430.86:107:15Waning Crescent2Wed
3Thu4:483.55:313.911:000.86:117:14Waning Crescent3Thu
4Fri5:503.76:264.012:260.711:48 AM0.76:127:12Waning Crescent4Fri
5Sat6:423.97:114.112:580.612:250.66:137:10Waning Crescent5Sat
6Sun7:274.07:504.11:220.51:020.46:147:09New Moon6Sun
7Mon8:074.28:264.11:440.41:400.36:157:07New Moon7Mon
8Tue8:444.38:594.12:090.32:200.26:167:05New Moon8Tue
9Wed9:194.39:323.92:390.23:000.26:177:03New Moon9Wed
10Thu9:524.210:043.83:100.23:390.36:187:02Waxing Crescent10Thu
11Fri10:254.110:393.63:410.24:150.36:197:00Waxing Crescent11Fri
12Sat10:593.911:173.44:130.34:510.56:206:58Waxing Crescent12Sat
13Sun11:373.84:450.45:270.66:216:57Waxing Crescent13Sun
14Mon12:003.212:223.75:200.56:080.86:226:55First Quarter14Mon
15Tue12:493.11:133.66:010.67:021.06:236:53First Quarter15Tue
16Wed1:423.02:093.66:550.78:241.06:246:51First Quarter16Wed
17Thu2:393.13:093.78:080.810:000.96:256:50First Quarter17Thu
18Fri3:423.34:153.99:310.610:590.66:266:48Waxing Gibbous18Fri
19Sat4:483.65:204.210:460.411:440.36:276:46Waxing Gibbous19Sat
20Sun5:504.16:184.511:480.16:286:44Waxing Gibbous20Sun
21Mon6:454.67:114.812:250.012:42-0.26:296:43Full Moon21Mon
22Tue7:365.18:015.01:06-0.31:36-0.46:306:41Full Moon22Tue
23Wed8:265.48:505.01:48-0.52:29-0.46:316:39Full Moon23Wed
24Thu9:155.69:404.92:31-0.53:23-0.46:326:37Full Moon24Thu
25Fri10:055.510:314.63:15-0.54:14-0.26:336:36Waning Gibbous25Fri
26Sat10:585.311:244.33:59-0.35:030.16:346:34Waning Gibbous26Sat
27Sun10:534.911:214.03:44-0.14:570.45:355:32Waning Gibbous27Sun
28Mon11:524.54:310.36:260.75:365:31Third Quarter28Mon
29Tue12:203.812:534.15:240.68:160.95:375:29Third Quarter29Tue
30Wed1:203.61:563.96:350.99:240.95:385:27Third Quarter30Wed
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 9:16 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 13% 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 (13% 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