Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 5:07 pm (0.3 ft)
Next high tide : in 2h 08m at 11:26 am (4.7 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Jul 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:364.911:584.75:11-0.25:130.05:128:21Waxing Crescent1Fri
2Sat12:324.85:55-0.16:110.35:128:21Waxing Crescent2Sat
3Sun12:524.41:284.66:410.27:250.65:138:21First Quarter3Sun
4Mon1:474.02:234.57:340.49:080.75:138:21First Quarter4Mon
5Tue2:413.73:194.38:330.510:210.85:148:20First Quarter5Tue
6Wed3:383.54:174.19:290.611:140.85:158:20Waxing Gibbous6Wed
7Thu4:383.35:174.110:190.611:550.75:158:20Waxing Gibbous7Thu
8Fri5:383.36:124.111:040.65:168:19Waxing Gibbous8Fri
9Sat6:323.47:004.112:290.711:48 AM0.55:168:19Waxing Gibbous9Sat
10Sun7:183.57:424.11:010.512:310.45:178:19Full Moon10Sun
11Mon8:003.68:214.21:370.41:150.45:188:18Full Moon11Mon
12Tue8:393.78:564.22:160.31:590.35:198:18Full Moon12Tue
13Wed9:163.79:314.12:540.22:440.35:198:17Full Moon13Wed
14Thu9:533.710:054.03:310.23:260.35:208:17Full Moon14Thu
15Fri10:303.710:413.94:030.24:060.35:218:16Waning Gibbous15Fri
16Sat11:083.711:203.84:340.24:440.45:228:15Waning Gibbous16Sat
17Sun11:493.75:040.25:220.55:238:15Waning Gibbous17Sun
18Mon12:033.612:333.85:380.26:050.65:238:14Third Quarter18Mon
19Tue12:503.51:203.96:170.26:580.75:248:13Third Quarter19Tue
20Wed1:413.52:104.07:060.38:060.75:258:13Third Quarter20Wed
21Thu2:353.43:054.18:050.39:280.75:268:12Third Quarter21Thu
22Fri3:353.54:084.39:100.210:470.55:278:11Waning Crescent22Fri
23Sat4:413.65:154.510:170.111:500.35:288:10Waning Crescent23Sat
24Sun5:473.96:194.811:21-0.15:298:09Waning Crescent24Sun
25Mon6:484.37:165.112:440.012:20-0.35:308:09New Moon25Mon
26Tue7:444.78:105.31:36-0.11:18-0.45:318:08New Moon26Tue
27Wed8:375.09:015.42:28-0.32:15-0.45:328:07New Moon27Wed
28Thu9:295.19:525.33:17-0.43:13-0.45:338:06New Moon28Thu
29Fri10:205.210:425.04:00-0.34:07-0.25:348:05Waxing Crescent29Fri
30Sat11:135.111:344.74:39-0.24:570.05:358:04Waxing Crescent30Sat
31Sun12:064.95:17-0.15:470.35:358:03Waxing Crescent31Sun
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 2:16 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 18% 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 (18% 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