Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 1h 25m at 5:07 pm (0.3 ft)
Next high tide : 11:44 pm (4.0 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Jan 1938

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:323.97:483.412:34-0.11:310.07:104:23New Moon1Sat
2Sun8:063.98:243.41:17-0.12:08-0.17:104:24New Moon2Sun
3Mon8:403.89:013.41:58-0.12:43-0.27:104:25New Moon3Mon
4Tue9:163.79:393.42:38-0.13:14-0.27:104:25Waxing Crescent4Tue
5Wed9:543.610:203.43:15-0.13:44-0.17:104:26Waxing Crescent5Wed
6Thu10:363.511:053.43:520.04:16-0.17:104:27Waxing Crescent6Thu
7Fri11:233.411:533.54:330.14:53-0.17:104:28Waxing Crescent7Fri
8Sat12:143.35:210.25:39-0.17:104:29First Quarter8Sat
9Sun12:443.61:083.26:220.36:340.07:094:30First Quarter9Sun
10Mon1:393.72:073.27:420.47:39-0.17:094:31First Quarter10Mon
11Tue2:403.83:113.39:140.28:48-0.27:094:32Waxing Gibbous11Tue
12Wed3:474.14:193.510:280.09:55-0.37:094:34Waxing Gibbous12Wed
13Thu4:534.45:223.811:26-0.210:56-0.57:084:35Waxing Gibbous13Thu
14Fri5:534.76:194.112:19-0.47:084:36Full Moon14Fri
15Sat6:474.97:124.41:11-0.67:084:37Full Moon15Sat
16Sun7:395.08:044.612:49-0.82:00-0.67:074:38Full Moon16Sun
17Mon8:295.08:544.71:44-0.82:44-0.77:074:39Full Moon17Mon
18Tue9:184.89:454.62:37-0.73:23-0.67:064:40Waning Gibbous18Tue
19Wed10:084.410:364.43:25-0.53:58-0.47:064:42Waning Gibbous19Wed
20Thu10:584.011:294.24:11-0.24:33-0.27:054:43Waning Gibbous20Thu
21Fri11:493.64:580.15:110.07:044:44Third Quarter21Fri
22Sat12:223.912:403.35:510.45:550.27:044:45Third Quarter22Sat
23Sun1:153.61:323.07:020.66:500.47:034:46Third Quarter23Sun
24Mon2:093.42:272.78:420.77:540.57:024:48Third Quarter24Mon
25Tue3:093.23:282.79:480.69:020.47:014:49Waning Crescent25Tue
26Wed4:113.24:302.710:340.510:010.37:014:50Waning Crescent26Wed
27Thu5:073.35:222.911:140.410:500.27:004:51Waning Crescent27Thu
28Fri5:533.46:063.011:520.211:360.06:594:53Waning Crescent28Fri
29Sat6:313.66:453.212:300.06:584:54New Moon29Sat
30Sun7:063.77:213.412:19-0.11:07-0.16:574:55New Moon30Sun
31Mon7:403.87:573.61:01-0.21:42-0.36:564:56New Moon31Mon
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 8:25 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 18% 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 Waxing Crescent (18% 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