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 3h 16m 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 - Sep 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:414.37:124.912:550.212:230.06:087:17Waning Crescent1Sun
2Mon7:354.68:035.11:400.11:20-0.16:097:16New Moon2Mon
3Tue8:264.98:505.12:210.02:14-0.26:107:14New Moon3Tue
4Wed9:145.19:374.92:59-0.13:05-0.26:117:12New Moon4Wed
5Thu10:015.110:224.63:33-0.13:520.06:127:11Waxing Crescent5Thu
6Fri10:494.911:094.24:050.04:350.16:137:09Waxing Crescent6Fri
7Sat11:364.611:563.94:370.15:160.46:147:07Waxing Crescent7Sat
8Sun12:254.35:110.35:590.76:157:05Waxing Crescent8Sun
9Mon12:453.51:154.05:500.56:490.96:167:04First Quarter9Mon
10Tue1:363.22:063.76:350.88:021.16:187:02First Quarter10Tue
11Wed2:273.03:003.57:321.09:421.16:197:00First Quarter11Wed
12Thu3:222.94:003.48:461.010:461.06:206:59First Quarter12Thu
13Fri4:242.95:043.410:051.011:320.96:216:57Waxing Gibbous13Fri
14Sat5:253.15:583.511:080.86:226:55Waxing Gibbous14Sat
15Sun6:153.36:403.712:100.711:58 AM0.66:236:53Waxing Gibbous15Sun
16Mon6:573.67:163.912:450.512:410.46:246:52Waxing Gibbous16Mon
17Tue7:343.97:514.11:180.31:230.26:256:50Full Moon17Tue
18Wed8:114.18:274.21:500.12:040.16:266:48Full Moon18Wed
19Thu8:484.49:054.32:220.02:440.06:276:46Full Moon19Thu
20Fri9:264.59:464.22:54-0.13:240.06:286:45Full Moon20Fri
21Sat10:074.610:314.13:28-0.14:040.16:296:43Waning Gibbous21Sat
22Sun10:524.611:193.94:03-0.14:450.26:306:41Waning Gibbous22Sun
23Mon11:414.54:410.05:290.36:316:39Waning Gibbous23Mon
24Tue12:133.712:374.45:250.16:230.66:326:38Third Quarter24Tue
25Wed1:113.61:374.36:160.37:440.86:336:36Third Quarter25Wed
26Thu2:123.62:404.27:200.510:050.76:346:34Third Quarter26Thu
27Fri3:153.63:484.28:440.611:100.66:356:33Third Quarter27Fri
28Sat4:223.84:584.310:190.511:590.46:366:31Waning Crescent28Sat
29Sun4:284.15:014.510:330.311:400.25:375:29Waning Crescent29Sun
30Mon5:274.55:554.711:290.15:385:27Waning Crescent30Mon
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