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 4h 21m 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 - Jul 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:003.97:304.91:160.212:200.15:128:21New Moon1Sat
2Sun7:544.08:214.92:090.21:120.15:138:21New Moon2Sun
3Mon8:444.29:104.82:590.22:040.15:138:21New Moon3Mon
4Tue9:324.29:564.63:410.22:560.15:148:20New Moon4Tue
5Wed10:204.210:424.44:150.23:450.25:148:20Waxing Crescent5Wed
6Thu11:074.111:264.14:440.34:300.35:158:20Waxing Crescent6Thu
7Fri11:554.05:130.35:140.55:168:20Waxing Crescent7Fri
8Sat12:103.812:423.85:450.46:000.75:168:19Waxing Crescent8Sat
9Sun12:533.51:273.76:200.56:530.85:178:19First Quarter9Sun
10Mon1:343.22:093.67:020.67:561.05:188:18First Quarter10Mon
11Tue2:163.02:523.67:500.79:091.05:198:18First Quarter11Tue
12Wed2:592.83:373.58:430.710:160.95:198:17First Quarter12Wed
13Thu3:502.84:303.59:400.711:120.85:208:17Waxing Gibbous13Thu
14Fri4:512.85:283.610:350.65:218:16Waxing Gibbous14Fri
15Sat5:523.06:213.912:000.711:27 AM0.55:228:16Waxing Gibbous15Sat
16Sun6:443.27:084.112:450.512:160.35:228:15Waxing Gibbous16Sun
17Mon7:313.57:534.41:300.31:030.25:238:14Full Moon17Mon
18Tue8:163.88:374.62:140.21:510.15:248:14Full Moon18Tue
19Wed9:024.09:224.72:560.02:400.05:258:13Full Moon19Wed
20Thu9:494.210:084.73:35-0.13:30-0.15:268:12Waning Gibbous20Thu
21Fri10:374.410:564.64:12-0.24:180.05:278:11Waning Gibbous21Fri
22Sat11:274.511:474.44:48-0.25:070.15:288:11Waning Gibbous22Sat
23Sun12:204.65:27-0.26:000.35:298:10Waning Gibbous23Sun
24Mon12:414.21:144.66:100.07:050.55:308:09Third Quarter24Mon
25Tue1:363.92:104.66:590.18:450.65:308:08Third Quarter25Tue
26Wed2:343.73:094.57:580.310:230.65:318:07Third Quarter26Wed
27Thu3:353.54:134.49:040.411:310.65:328:06Waning Crescent27Thu
28Fri4:413.55:214.410:150.45:338:05Waning Crescent28Fri
29Sat5:483.66:244.512:260.511:19 AM0.45:348:04Waning Crescent29Sat
30Sun6:473.87:194.61:160.412:150.35:358:03Waning Crescent30Sun
31Mon7:394.08:074.62:010.41:060.35:368:02New Moon31Mon
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