Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 4h 00m at 8:54 am (0.2 ft)
Next high tide : 3:52 pm (4.3 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:17 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:514.39:084.22:100.22:270.26:097:16Full Moon1Wed
2Thu9:274.39:444.12:420.23:070.26:107:15Full Moon2Thu
3Fri10:024.210:183.93:160.13:460.36:117:13Waning Gibbous3Fri
4Sat10:364.010:543.63:500.24:240.46:127:11Waning Gibbous4Sat
5Sun11:113.911:333.44:230.25:000.56:137:10Waning Gibbous5Sun
6Mon11:493.74:580.45:370.76:147:08Waning Gibbous6Mon
7Tue12:163.312:323.65:350.56:190.96:157:06Third Quarter7Tue
8Wed1:033.11:203.56:170.67:151.06:167:05Third Quarter8Wed
9Thu1:543.12:133.67:120.78:401.06:177:03Third Quarter9Thu
10Fri2:483.23:103.78:200.710:090.86:187:01Third Quarter10Fri
11Sat3:483.34:143.89:350.611:040.66:196:59Waning Crescent11Sat
12Sun4:523.75:204.110:440.311:480.36:206:58Waning Crescent12Sun
13Mon5:534.16:184.511:440.06:216:56Waning Crescent13Mon
14Tue6:484.67:114.812:290.012:38-0.26:226:54New Moon14Tue
15Wed7:395.18:015.01:10-0.31:30-0.46:236:53New Moon15Wed
16Thu8:295.48:515.11:53-0.42:24-0.56:246:51New Moon16Thu
17Fri9:185.69:415.02:37-0.53:17-0.56:256:49New Moon17Fri
18Sat10:095.610:334.83:22-0.54:08-0.36:266:47Waxing Crescent18Sat
19Sun11:025.411:274.54:07-0.44:590.06:276:46Waxing Crescent19Sun
20Mon11:585.14:52-0.15:520.36:286:44Waxing Crescent20Mon
21Tue12:244.212:574.75:400.27:060.66:296:42First Quarter21Tue
22Wed1:234.01:574.46:350.59:080.86:306:40First Quarter22Wed
23Thu2:233.82:584.17:560.810:200.86:316:39First Quarter23Thu
24Fri3:243.74:023.910:130.911:130.86:326:37First Quarter24Fri
25Sat4:283.75:053.911:130.811:510.76:336:35Waxing Gibbous25Sat
26Sun5:293.86:003.911:530.76:356:33Waxing Gibbous26Sun
27Mon6:224.06:464.012:170.612:240.66:366:32Waxing Gibbous27Mon
28Tue7:064.17:264.012:370.512:550.46:376:30Waxing Gibbous28Tue
29Wed7:454.38:034.01:010.31:290.36:386:28Full Moon29Wed
30Thu8:214.38:384.01:310.22:060.26:396:27Full Moon30Thu
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 12:23 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 transitional phase. Tonight's moon is 30% 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 Waning Crescent (30% 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