Nearby Harbors
41.6567’ N, 70.8133’ W

Mattapoisett Harbor, MA

54°
H -°
L 52°
NE
3mph
Low tide
11:29 pm
Photo Credits

Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Monday, September 21, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 2h 05m at 11:29 pm (0.8 ft)
Next high tide (tomorrow) : 5:21 am (3.2 ft)
Sunset today : 6:42 pm
Sunrise tomorrow : 6:29 am
Moon phase : Waxing Gibbous (75% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Featured Local Businesses

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Mattapoisett Harbor, MA Tides - Aug 1864

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:554.07:194.312:500.412:120.34:417:04New Moon1Mon
2Tue7:374.17:564.31:180.412:550.34:427:03New Moon2Tue
3Wed8:164.18:324.21:490.31:400.24:437:02New Moon3Wed
4Thu8:544.09:064.02:210.22:230.24:447:01Waxing Crescent4Thu
5Fri9:314.09:403.82:530.23:040.34:457:00Waxing Crescent5Fri
6Sat10:073.910:163.63:250.23:420.44:466:58Waxing Crescent6Sat
7Sun10:453.810:543.43:560.34:210.54:476:57Waxing Crescent7Sun
8Mon11:253.711:383.34:280.45:010.74:486:56Waxing Crescent8Mon
9Tue12:093.75:050.45:490.84:496:55First Quarter9Tue
10Wed12:253.212:563.75:500.56:510.94:506:53First Quarter10Wed
11Thu1:163.21:483.86:460.58:080.84:516:52First Quarter11Thu
12Fri2:123.22:473.97:530.59:240.74:526:51Waxing Gibbous12Fri
13Sat3:163.43:524.19:030.410:230.44:536:49Waxing Gibbous13Sat
14Sun4:233.74:564.510:080.111:140.14:546:48Waxing Gibbous14Sun
15Mon5:244.15:534.911:06-0.14:556:46Waxing Gibbous15Mon
16Tue6:194.66:455.112:01-0.112:02-0.34:566:45Full Moon16Tue
17Wed7:115.07:365.312:48-0.312:58-0.44:576:43Full Moon17Wed
18Thu8:025.28:265.31:35-0.51:54-0.54:596:42Full Moon18Thu
19Fri8:535.49:175.22:20-0.52:49-0.45:006:40Waning Gibbous19Fri
20Sat9:455.310:094.93:04-0.53:41-0.25:016:39Waning Gibbous20Sat
21Sun10:395.211:034.53:46-0.34:330.15:026:37Waning Gibbous21Sun
22Mon11:354.94:29-0.15:350.45:036:36Third Quarter22Mon
23Tue12:004.212:334.65:160.27:230.75:046:34Third Quarter23Tue
24Wed12:573.91:314.36:110.58:520.85:056:33Third Quarter24Wed
25Thu1:553.72:324.17:220.79:550.85:066:31Third Quarter25Thu
26Fri2:563.63:373.98:470.810:440.85:076:30Waning Crescent26Fri
27Sat3:593.64:393.99:530.811:210.75:086:28Waning Crescent27Sat
28Sun4:583.75:314.010:380.711:500.65:096:26Waning Crescent28Sun
29Mon5:483.86:154.111:180.55:106:25Waning Crescent29Mon
30Tue6:314.06:534.112:140.511:57 AM0.45:116:23New Moon30Tue
31Wed7:104.17:284.112:410.412:380.35:126:22New Moon31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

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Common Questions About Mattapoisett Harbor, MA Tides

Collapse All
Is this week a spring tide or neap tide in Mattapoisett Harbor, MA?

Mattapoisett Harbor, MA is currently in a transitional phase. Tonight's moon is 75% 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 shifting between spring and neap.

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 Gibbous (75% illuminated). This places Mattapoisett Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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

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