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 : 9:11 pm (1.1 ft)
Next high tide : in 6h 12m at 2:45 pm (3.6 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 - Feb 1930

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:253.69:463.32:52-0.13:21-0.26:554:58Waxing Crescent1Sat
2Sun10:013.410:243.33:28-0.13:49-0.26:544:59Waxing Crescent2Sun
3Mon10:403.311:053.34:040.04:18-0.16:535:00Waxing Crescent3Mon
4Tue11:253.111:503.44:420.14:52-0.16:525:01Waxing Crescent4Tue
5Wed12:142.95:270.35:340.06:515:03First Quarter5Wed
6Thu12:393.41:072.86:270.46:270.06:505:04First Quarter6Thu
7Fri1:333.52:072.87:490.47:330.16:495:05First Quarter7Fri
8Sat2:363.63:142.99:280.38:470.06:485:07Waxing Gibbous8Sat
9Sun3:483.84:243.110:410.19:58-0.26:465:08Waxing Gibbous9Sun
10Mon4:584.15:283.511:38-0.111:03-0.46:455:09Waxing Gibbous10Mon
11Tue5:584.46:244.012:29-0.36:445:10Waxing Gibbous11Tue
12Wed6:534.77:164.312:03-0.71:19-0.56:435:12Full Moon12Wed
13Thu7:434.98:074.61:00-0.82:04-0.66:415:13Full Moon13Thu
14Fri8:324.88:564.71:57-0.82:45-0.76:405:14Full Moon14Fri
15Sat9:204.69:464.72:49-0.83:21-0.76:395:15Waning Gibbous15Sat
16Sun10:094.310:374.53:37-0.63:54-0.56:375:17Waning Gibbous16Sun
17Mon10:593.911:294.24:23-0.34:29-0.36:365:18Waning Gibbous17Mon
18Tue11:503.55:100.05:060.06:355:19Third Quarter18Tue
19Wed12:223.912:433.16:060.45:500.26:335:20Third Quarter19Wed
20Thu1:163.61:372.87:340.66:450.56:325:22Third Quarter20Thu
21Fri2:143.32:362.69:170.77:570.66:305:23Third Quarter21Fri
22Sat3:193.13:432.610:180.79:170.66:295:24Waning Crescent22Sat
23Sun4:283.14:472.711:010.610:220.56:275:25Waning Crescent23Sun
24Mon5:253.25:392.911:360.411:110.36:265:26Waning Crescent24Mon
25Tue6:093.46:213.112:100.36:245:28Waning Crescent25Tue
26Wed6:463.56:583.312:440.16:235:29New Moon26Wed
27Thu7:193.67:333.512:37-0.11:17-0.16:215:30New Moon27Thu
28Fri7:513.78:063.61:19-0.21:49-0.26:205:31New Moon28Fri
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 5:58 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 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