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 : 10:50 am (0.2 ft)
Next high tide : in 2h 05m at 5:17 am (3.6 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 - Mar 1950

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:193.45:433.311:500.111:29-0.26:185:33Waxing Gibbous1Wed
2Thu6:073.86:303.712:26-0.26:165:34Waxing Gibbous2Thu
3Fri6:514.27:154.212:18-0.51:03-0.46:155:35Full Moon3Fri
4Sat7:364.48:014.51:06-0.61:39-0.66:135:36Full Moon4Sat
5Sun8:214.48:474.71:55-0.82:16-0.76:125:37Full Moon5Sun
6Mon9:084.49:344.82:43-0.82:53-0.76:105:38Waning Gibbous6Mon
7Tue9:574.110:254.73:29-0.63:32-0.76:085:40Waning Gibbous7Tue
8Wed10:503.911:204.54:16-0.44:13-0.56:075:41Waning Gibbous8Wed
9Thu11:463.65:08-0.14:59-0.26:055:42Third Quarter9Thu
10Fri12:184.212:463.36:170.35:550.26:035:43Third Quarter10Fri
11Sat1:203.91:483.28:330.57:110.46:025:44Third Quarter11Sat
12Sun2:263.72:553.19:560.49:240.56:005:45Third Quarter12Sun
13Mon3:393.64:063.210:540.410:430.35:585:46Waning Crescent13Mon
14Tue4:473.75:083.511:400.311:320.25:575:48Waning Crescent14Tue
15Wed5:423.86:003.712:160.25:555:49Waning Crescent15Wed
16Thu6:294.06:464.012:110.112:420.15:535:50New Moon16Thu
17Fri7:104.07:274.112:450.01:030.05:525:51New Moon17Fri
18Sat7:484.08:054.21:20-0.11:27-0.15:505:52New Moon18Sat
19Sun8:243.88:404.11:55-0.21:55-0.25:485:53New Moon19Sun
20Mon8:593.79:144.02:30-0.22:26-0.25:475:54Waxing Crescent20Mon
21Tue9:343.49:473.83:05-0.12:59-0.15:455:55Waxing Crescent21Tue
22Wed10:113.210:213.53:400.03:320.05:435:56Waxing Crescent22Wed
23Thu10:492.910:573.34:150.24:070.25:415:58Waxing Crescent23Thu
24Fri11:322.711:403.14:520.44:450.35:405:59Waxing Crescent24Fri
25Sat12:192.65:350.65:300.55:386:00First Quarter25Sat
26Sun12:293.01:112.66:390.86:290.65:366:01First Quarter26Sun
27Mon1:252.92:072.68:280.87:470.65:356:02First Quarter27Mon
28Tue2:283.03:112.89:440.69:070.45:336:03First Quarter28Tue
29Wed3:373.24:153.210:300.410:140.25:316:04Waxing Gibbous29Wed
30Thu4:413.55:123.711:070.111:08-0.15:296:05Waxing Gibbous30Thu
31Fri5:353.96:024.211:43-0.25:286:06Waxing 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 8:03 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 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