Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 1h 38m at 5:10 pm (0.5 ft)
Next high tide : 11:53 pm (3.7 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:14 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Apr 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:233.45:443.511:280.111:410.05:256:08Waning Crescent1Sat
2Sun7:053.77:253.91:03-0.16:237:09Waning Crescent2Sun
3Mon7:463.98:054.21:23-0.21:37-0.36:217:11New Moon3Mon
4Tue8:274.18:474.52:06-0.42:13-0.46:207:12New Moon4Tue
5Wed9:104.29:304.62:49-0.52:51-0.56:187:13New Moon5Wed
6Thu9:564.210:164.73:32-0.53:31-0.56:167:14Waxing Crescent6Thu
7Fri10:454.111:054.64:15-0.54:12-0.56:157:15Waxing Crescent7Fri
8Sat11:374.011:594.54:59-0.34:55-0.36:137:16Waxing Crescent8Sat
9Sun12:333.85:47-0.15:43-0.16:117:17Waxing Crescent9Sun
10Mon12:574.31:323.76:480.26:400.26:107:18First Quarter10Mon
11Tue1:584.12:333.78:490.47:540.46:087:19First Quarter11Tue
12Wed3:014.03:363.710:220.39:380.46:067:20First Quarter12Wed
13Thu4:093.94:433.911:210.311:100.36:057:21Waxing Gibbous13Thu
14Fri5:164.05:464.112:070.16:037:23Waxing Gibbous14Fri
15Sat6:164.16:414.412:080.112:440.16:027:24Waxing Gibbous15Sat
16Sun7:084.27:304.612:530.01:130.06:007:25Waxing Gibbous16Sun
17Mon7:544.28:154.81:34-0.11:40-0.15:597:26Full Moon17Mon
18Tue8:384.28:584.82:13-0.22:09-0.15:577:27Full Moon18Tue
19Wed9:204.19:394.62:50-0.22:43-0.15:567:28Full Moon19Wed
20Thu10:013.910:194.43:27-0.13:190.05:547:29Full Moon20Thu
21Fri10:423.711:004.14:040.03:560.15:537:30Waning Gibbous21Fri
22Sat11:243.411:413.84:410.14:350.25:517:31Waning Gibbous22Sat
23Sun12:083.25:190.35:150.45:507:32Waning Gibbous23Sun
24Mon12:243.512:533.06:010.55:590.65:487:33Waning Gibbous24Mon
25Tue1:093.21:402.96:520.66:520.75:477:35Third Quarter25Tue
26Wed1:563.12:272.97:570.88:000.85:457:36Third Quarter26Wed
27Thu2:443.03:182.99:140.79:210.85:447:37Third Quarter27Thu
28Fri3:383.04:143.110:140.610:310.65:437:38Third Quarter28Fri
29Sat4:373.25:113.411:000.411:260.45:417:39Waning Crescent29Sat
30Sun5:343.46:033.811:390.25:407:40Waning Crescent30Sun
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

Common Questions About Mattapoisett Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Mattapoisett Harbor, MA today?

Slack tide in Mattapoisett Harbor, MA is approximately 8:31 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 spring phase. Tonight's moon is 81% 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 maximum.

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 Waning Gibbous (81% illuminated). This places Mattapoisett Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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