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 4h 27m 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 - Nov 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:294.97:494.112:360.01:270.16:154:38New Moon1Fri
2Sat8:104.88:303.91:090.02:040.16:164:37New Moon2Sat
3Sun8:514.69:123.71:460.12:410.26:174:36Waxing Crescent3Sun
4Mon9:314.39:543.52:250.23:180.36:184:35Waxing Crescent4Mon
5Tue10:133.910:393.23:050.33:560.56:194:33Waxing Crescent5Tue
6Wed10:583.611:273.03:460.54:380.76:214:32Waxing Crescent6Wed
7Thu11:463.44:300.75:270.86:224:31First Quarter7Thu
8Fri12:162.912:353.25:200.96:340.96:234:30First Quarter8Fri
9Sat1:062.91:243.16:261.07:580.96:244:29First Quarter9Sat
10Sun1:552.92:133.17:531.08:560.76:264:28First Quarter10Sun
11Mon2:473.13:063.29:100.89:380.56:274:27Waxing Gibbous11Mon
12Tue3:423.44:013.310:060.610:130.36:284:26Waxing Gibbous12Tue
13Wed4:333.74:533.510:510.310:480.06:294:25Waxing Gibbous13Wed
14Thu5:204.15:413.811:340.111:25-0.26:304:24Waxing Gibbous14Thu
15Fri6:054.56:284.012:17-0.16:324:23Full Moon15Fri
16Sat6:504.87:154.112:04-0.41:01-0.36:334:22Full Moon16Sat
17Sun7:365.08:044.212:46-0.51:49-0.36:344:22Full Moon17Sun
18Mon8:245.18:544.11:31-0.52:37-0.36:354:21Waning Gibbous18Mon
19Tue9:165.09:474.02:19-0.43:26-0.26:364:20Waning Gibbous19Tue
20Wed10:114.810:453.93:09-0.34:180.06:384:19Waning Gibbous20Wed
21Thu11:104.511:453.94:00-0.15:200.26:394:19Waning Gibbous21Thu
22Fri12:124.34:580.27:040.46:404:18Third Quarter22Fri
23Sat12:463.91:134.16:130.58:260.46:414:17Third Quarter23Sat
24Sun1:473.92:133.98:220.69:240.36:424:17Third Quarter24Sun
25Mon2:494.03:153.79:450.510:080.36:434:16Waning Crescent25Mon
26Tue3:514.24:163.710:400.410:400.26:454:16Waning Crescent26Tue
27Wed4:484.45:123.711:250.311:060.26:464:15Waning Crescent27Wed
28Thu5:394.56:003.712:020.26:474:15Waning Crescent28Thu
29Fri6:254.66:453.712:350.16:484:14New Moon29Fri
30Sat7:074.57:273.712:030.11:080.16:494:14New Moon30Sat
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