Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 55m at 7:18 am (0.6 ft)
Next high tide : 2:32 pm (4.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:27 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Nov 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:095.410:374.73:12-0.64:18-0.37:165:37Waning Gibbous1Fri
2Sat11:035.111:334.54:03-0.45:10-0.17:175:36Waning Gibbous2Sat
3Sun11:004.811:314.33:53-0.15:080.26:184:34Waning Gibbous3Sun
4Mon12:004.44:460.36:420.56:194:33Third Quarter4Mon
5Tue12:314.112:594.15:510.68:090.56:214:32Third Quarter5Tue
6Wed1:304.01:573.87:570.89:090.66:224:31Third Quarter6Wed
7Thu2:293.92:573.69:250.79:540.56:234:30Third Quarter7Thu
8Fri3:293.93:563.510:160.710:250.56:244:29Waning Crescent8Fri
9Sat4:264.04:513.510:520.610:460.46:254:28Waning Crescent9Sat
10Sun5:174.15:383.611:220.511:110.36:274:27Waning Crescent10Sun
11Mon6:014.26:193.611:530.311:410.26:284:26Waning Crescent11Mon
12Tue6:404.36:573.712:270.26:294:25New Moon12Tue
13Wed7:174.37:343.712:160.11:050.16:304:24New Moon13Wed
14Thu7:514.28:093.612:540.11:450.16:314:23New Moon14Thu
15Fri8:264.18:463.51:340.12:240.16:334:22New Moon15Fri
16Sat9:014.09:243.42:130.13:010.26:344:21Waxing Crescent16Sat
17Sun9:383.810:053.32:510.23:360.26:354:21Waxing Crescent17Sun
18Mon10:193.710:503.33:290.34:110.36:364:20Waxing Crescent18Mon
19Tue11:063.611:393.34:090.44:500.46:374:19Waxing Crescent19Tue
20Wed11:573.54:540.55:360.46:394:18First Quarter20Wed
21Thu12:313.412:503.55:510.66:330.46:404:18First Quarter21Thu
22Fri1:243.51:453.67:040.67:380.36:414:17First Quarter22Fri
23Sat2:203.82:453.68:280.58:410.16:424:17Waxing Gibbous23Sat
24Sun3:214.13:483.89:430.29:38-0.16:434:16Waxing Gibbous24Sun
25Mon4:234.54:514.010:43-0.110:31-0.46:444:15Waxing Gibbous25Mon
26Tue5:214.95:484.311:37-0.311:22-0.66:454:15Waxing Gibbous26Tue
27Wed6:165.26:424.512:30-0.46:474:15Full Moon27Wed
28Thu7:095.47:354.612:12-0.71:24-0.56:484:14Full Moon28Thu
29Fri8:015.48:274.71:03-0.72:18-0.56:494:14Full Moon29Fri
30Sat8:525.39:194.61:56-0.63:09-0.46:504:13Waning Gibbous30Sat
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 10:55 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 52% 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 (52% 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