Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 12:39 am (0.2 ft)
Next high tide : in 6h 43m at 6:05 pm (4.8 ft)
Sunset today : 8:18 pm
Sunrise tomorrow : 5:19 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:264.49:424.12:510.23:020.26:097:16New Moon1Fri
2Sat10:034.310:163.93:190.23:420.36:107:15Waxing Crescent2Sat
3Sun10:394.210:523.63:500.24:200.36:117:13Waxing Crescent3Sun
4Mon11:144.011:283.44:210.34:570.56:127:11Waxing Crescent4Mon
5Tue11:513.84:540.45:360.76:137:10Waxing Crescent5Tue
6Wed12:093.112:323.65:290.66:180.96:147:08First Quarter6Wed
7Thu12:533.01:173.56:090.77:131.06:157:06First Quarter7Thu
8Fri1:422.92:083.47:000.88:361.16:167:05First Quarter8Fri
9Sat2:352.93:043.48:070.910:091.06:177:03First Quarter9Sat
10Sun3:353.04:083.69:260.811:060.86:187:01Waxing Gibbous10Sun
11Mon4:403.25:133.910:390.611:490.56:196:59Waxing Gibbous11Mon
12Tue5:423.66:114.211:380.36:206:58Waxing Gibbous12Tue
13Wed6:374.17:014.612:270.212:300.06:216:56Waxing Gibbous13Wed
14Thu7:264.67:494.81:05-0.11:20-0.26:226:54Full Moon14Thu
15Fri8:145.08:374.91:44-0.32:12-0.36:236:53Full Moon15Fri
16Sat9:025.39:254.92:25-0.53:04-0.46:246:51Full Moon16Sat
17Sun9:505.410:154.73:07-0.53:55-0.36:256:49Waning Gibbous17Sun
18Mon10:415.311:074.43:49-0.44:44-0.16:266:47Waning Gibbous18Mon
19Tue11:355.14:33-0.25:360.26:276:46Waning Gibbous19Tue
20Wed12:034.112:334.85:190.06:440.56:286:44Third Quarter20Wed
21Thu1:023.91:354.46:100.48:510.86:296:42Third Quarter21Thu
22Fri2:033.72:384.27:150.710:130.86:306:40Third Quarter22Fri
23Sat3:063.63:454.09:030.911:120.76:316:39Third Quarter23Sat
24Sun4:113.64:533.910:520.811:590.76:326:37Waning Crescent24Sun
25Mon5:163.85:534.011:440.76:336:35Waning Crescent25Mon
26Tue6:124.06:424.012:340.612:200.66:356:33Waning Crescent26Tue
27Wed7:004.27:234.112:580.512:520.56:366:32Waning Crescent27Wed
28Thu7:414.38:014.11:170.41:250.46:376:30New Moon28Thu
29Fri8:194.48:364.01:390.32:010.36:386:28New Moon29Fri
30Sat8:554.49:103.92:060.22:390.26:396:27New Moon30Sat
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 9:22 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 11% 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 Crescent (11% 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