Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 7:16 am (0.8 ft)
Next high tide : in 5m at 2:11 am (3.1 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Oct 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:493.13:293.48:441.110:171.05:395:26Waxing Gibbous1Wed
2Thu3:533.24:293.59:550.910:480.85:405:24Waxing Gibbous2Thu
3Fri4:493.45:173.610:410.711:160.65:415:23Waxing Gibbous3Fri
4Sat5:343.65:553.711:200.611:440.45:425:21Waxing Gibbous4Sat
5Sun6:123.96:293.911:590.45:435:19Waxing Gibbous5Sun
6Mon6:464.17:013.912:140.212:380.25:445:18Full Moon6Mon
7Tue7:194.27:343.912:440.11:170.25:455:16Full Moon7Tue
8Wed7:514.38:103.91:160.01:550.15:475:14Full Moon8Wed
9Thu8:264.48:483.81:480.02:320.15:485:13Full Moon9Thu
10Fri9:034.49:303.72:210.03:070.25:495:11Waning Gibbous10Fri
11Sat9:454.310:183.52:560.13:430.35:505:09Waning Gibbous11Sat
12Sun10:334.111:113.43:340.24:240.55:515:08Waning Gibbous12Sun
13Mon11:294.04:180.35:150.75:525:06Third Quarter13Mon
14Tue12:093.312:304.05:100.56:310.85:535:05Third Quarter14Tue
15Wed1:093.41:334.06:180.68:470.85:545:03Third Quarter15Wed
16Thu2:113.52:394.17:460.69:490.55:555:01Third Quarter16Thu
17Fri3:163.83:464.29:190.410:330.35:575:00Waning Crescent17Fri
18Sat4:204.24:494.410:290.211:110.15:584:58Waning Crescent18Sat
19Sun5:184.75:444.611:250.011:46-0.15:594:57Waning Crescent19Sun
20Mon6:105.16:344.712:16-0.26:004:55New Moon20Mon
21Tue6:595.47:224.612:21-0.21:05-0.36:014:54New Moon21Tue
22Wed7:465.48:094.512:58-0.31:53-0.26:024:52New Moon22Wed
23Thu8:335.38:554.31:38-0.22:37-0.16:044:51Waxing Crescent23Thu
24Fri9:205.09:434.02:18-0.13:180.16:054:49Waxing Crescent24Fri
25Sat10:094.610:343.72:590.13:580.46:064:48Waxing Crescent25Sat
26Sun11:004.211:273.43:400.34:400.66:074:47Waxing Crescent26Sun
27Mon11:553.84:250.65:300.96:084:45First Quarter27Mon
28Tue12:223.212:513.55:160.86:551.06:094:44First Quarter28Tue
29Wed1:183.11:473.36:241.08:331.06:114:43First Quarter29Wed
30Thu2:133.12:423.28:031.19:220.96:124:41First Quarter30Thu
31Fri3:113.13:383.29:240.99:580.76:134:40Waxing 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 4:43 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 neap phase. Tonight's moon is 55% 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 minimum.

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 First Quarter (55% illuminated). This places Mattapoisett Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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