Nearby Harbors
41.6567’ N, 70.8133’ W

Mattapoisett Harbor, MA

65°
H -°
L 60°
SW
2mph
High tide
12:46 am
Photo Credits

Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, September 17, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 5:47 am (0.7 ft)
Next high tide : in 24m at 12:46 am (3.2 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Featured Local Businesses

Dartmouth Harbormaster
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Mattapoisett Harbor, MA Tides - Apr 1881

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:304.09:514.43:04-0.22:48-0.25:296:12Waxing Crescent1Fri
2Sat10:163.710:384.03:400.03:27-0.15:276:13Waxing Crescent2Sat
3Sun11:043.411:263.64:160.24:070.25:256:14Waxing Crescent3Sun
4Mon11:543.24:570.44:520.45:246:15First Quarter4Mon
5Tue12:163.312:443.05:480.75:440.65:226:17First Quarter5Tue
6Wed1:063.01:352.97:020.86:510.75:206:18First Quarter6Wed
7Thu1:572.92:282.98:340.88:120.75:196:19First Quarter7Thu
8Fri2:532.83:253.09:320.79:270.65:176:20First Quarter8Fri
9Sat3:512.94:213.210:140.510:230.45:166:21Waxing Gibbous9Sat
10Sun4:433.05:083.510:490.311:090.25:146:22Waxing Gibbous10Sun
11Mon5:273.35:503.811:220.111:510.05:126:23Waxing Gibbous11Mon
12Tue6:073.56:294.111:55-0.15:116:24Full Moon12Tue
13Wed6:473.77:084.412:32-0.212:30-0.25:096:25Full Moon13Wed
14Thu7:293.87:494.61:13-0.31:07-0.35:076:26Full Moon14Thu
15Fri8:123.98:324.61:55-0.41:46-0.45:066:27Full Moon15Fri
16Sat8:583.99:194.62:37-0.42:27-0.35:046:28Waning Gibbous16Sat
17Sun9:473.910:094.53:18-0.33:11-0.35:036:30Waning Gibbous17Sun
18Mon10:403.811:044.44:02-0.23:57-0.15:016:31Waning Gibbous18Mon
19Tue11:373.74:510.04:490.15:006:32Third Quarter19Tue
20Wed12:034.212:373.85:510.25:520.34:586:33Third Quarter20Wed
21Thu1:044.11:373.87:200.47:210.44:576:34Third Quarter21Thu
22Fri2:054.02:394.08:520.39:170.44:556:35Third Quarter22Fri
23Sat3:093.93:434.29:490.210:270.24:546:36Waning Crescent23Sat
24Sun4:133.94:454.410:310.111:200.14:526:37Waning Crescent24Sun
25Mon5:124.05:404.711:070.04:516:38Waning Crescent25Mon
26Tue6:054.16:294.912:060.011:41 AM-0.14:496:39New Moon26Tue
27Wed6:534.27:154.912:49-0.112:17-0.14:486:40New Moon27Wed
28Thu7:384.18:004.81:29-0.112:56-0.14:476:41New Moon28Thu
29Fri8:234.18:434.62:07-0.11:36-0.14:456:43New Moon29Fri
30Sat9:073.99:254.32:420.02:180.04:446:44Waxing Crescent30Sat
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 39% 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 First Quarter (39% 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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