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 (tomorrow) : 5:09 am (0.2 ft)
Next high tide : in 3h 31m at 11:44 pm (4.0 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 - Aug 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:213.73:564.48:490.310:590.55:378:01Waning Crescent1Sun
2Mon4:273.75:044.610:020.25:388:00Waning Crescent2Mon
3Tue5:353.96:104.812:000.411:11 AM0.15:397:59Waning Crescent3Tue
4Wed6:364.27:075.012:510.212:120.05:407:58Waning Crescent4Wed
5Thu7:314.57:595.11:380.11:07-0.15:417:57New Moon5Thu
6Fri8:224.88:475.12:230.02:01-0.15:427:55New Moon6Fri
7Sat9:114.99:344.93:02-0.12:53-0.15:437:54New Moon7Sat
8Sun9:594.910:194.73:36-0.13:400.05:447:53Waxing Crescent8Sun
9Mon10:464.711:044.34:070.04:230.25:457:52Waxing Crescent9Mon
10Tue11:334.511:504.04:380.15:040.45:467:50Waxing Crescent10Tue
11Wed12:214.25:110.25:460.65:477:49Waxing Crescent11Wed
12Thu12:373.61:094.05:490.46:340.85:487:48First Quarter12Thu
13Fri1:243.31:563.76:320.67:341.05:497:46First Quarter13Fri
14Sat2:113.12:443.57:240.88:551.15:507:45First Quarter14Sat
15Sun2:593.03:373.48:270.810:131.05:517:43First Quarter15Sun
16Mon3:542.94:363.49:370.811:090.95:527:42Waxing Gibbous16Mon
17Tue4:553.05:333.510:410.711:530.75:537:41Waxing Gibbous17Tue
18Wed5:523.26:213.711:340.55:547:39Waxing Gibbous18Wed
19Thu6:393.57:024.012:330.512:210.45:557:38Waxing Gibbous19Thu
20Fri7:213.87:404.21:100.31:050.25:567:36Full Moon20Fri
21Sat8:014.18:194.41:450.11:480.15:577:35Full Moon21Sat
22Sun8:424.39:004.52:200.02:320.05:587:33Full Moon22Sun
23Mon9:244.59:434.52:55-0.23:15-0.15:597:32Full Moon23Mon
24Tue10:074.610:294.43:30-0.23:580.06:007:30Waning Gibbous24Tue
25Wed10:544.711:184.24:07-0.24:410.16:017:28Waning Gibbous25Wed
26Thu11:454.64:46-0.25:270.26:027:27Waning Gibbous26Thu
27Fri12:114.112:404.65:290.06:210.56:037:25Third Quarter27Fri
28Sat1:083.91:384.56:190.27:380.76:047:24Third Quarter28Sat
29Sun2:073.82:384.47:210.39:520.76:057:22Third Quarter29Sun
30Mon3:093.83:434.48:370.511:040.66:067:20Third Quarter30Mon
31Tue4:153.84:524.410:040.511:570.46:077:19Waning Crescent31Tue
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 2:26 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 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