Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Sunday, August 9, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 12:39 am (0.3 ft)
Next high tide : in 3h 25m at 5:53 pm (4.6 ft)
Sunset today : 7:51 pm
Sunrise tomorrow : 5:45 am
Moon phase : Waning Crescent (13% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Mar 1949

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:533.79:083.72:20-0.22:34-0.26:185:33New Moon1Tue
2Wed9:253.59:403.62:57-0.23:04-0.26:165:34Waxing Crescent2Wed
3Thu9:583.310:133.53:32-0.13:33-0.16:145:35Waxing Crescent3Thu
4Fri10:353.010:493.44:060.14:030.06:135:36Waxing Crescent4Fri
5Sat11:162.811:303.34:400.24:370.16:115:38Waxing Crescent5Sat
6Sun12:032.75:200.45:170.26:105:39First Quarter6Sun
7Mon12:183.212:552.66:120.66:090.36:085:40First Quarter7Mon
8Tue1:123.21:522.67:340.77:180.46:065:41First Quarter8Tue
9Wed2:163.22:582.89:240.68:380.36:055:42First Quarter9Wed
10Thu3:283.44:073.110:290.39:530.06:035:43Waxing Gibbous10Thu
11Fri4:393.75:103.511:160.010:57-0.36:015:44Waxing Gibbous11Fri
12Sat5:384.16:044.111:58-0.311:53-0.66:005:46Waxing Gibbous12Sat
13Sun6:304.56:554.612:40-0.55:585:47Full Moon13Sun
14Mon7:194.77:444.912:48-0.81:21-0.75:565:48Full Moon14Mon
15Tue8:074.78:325.11:42-0.92:02-0.85:555:49Full Moon15Tue
16Wed8:564.69:225.12:34-0.82:42-0.85:535:50Waning Gibbous16Wed
17Thu9:454.310:134.93:23-0.73:21-0.65:515:51Waning Gibbous17Thu
18Fri10:374.011:064.64:10-0.44:01-0.45:505:52Waning Gibbous18Fri
19Sat11:323.65:000.04:45-0.15:485:53Waning Gibbous19Sat
20Sun12:034.212:303.36:020.35:350.35:465:55Third Quarter20Sun
21Mon1:033.81:303.18:080.66:420.65:445:56Third Quarter21Mon
22Tue2:063.52:333.09:330.68:590.75:435:57Third Quarter22Tue
23Wed3:163.33:413.010:300.610:210.65:415:58Waning Crescent23Wed
24Thu4:243.34:453.211:110.511:040.55:395:59Waning Crescent24Thu
25Fri5:203.45:363.411:400.411:370.35:386:00Waning Crescent25Fri
26Sat6:043.56:193.612:030.35:366:01Waning Crescent26Sat
27Sun6:423.66:573.812:090.212:260.15:346:02New Moon27Sun
28Mon7:163.77:313.912:450.012:540.05:326:03New Moon28Mon
29Tue7:493.78:034.01:22-0.11:24-0.15:316:04New Moon29Tue
30Wed8:213.68:344.02:00-0.11:56-0.15:296:06New Moon30Wed
31Thu8:543.59:053.92:36-0.12:27-0.15:276:07Waxing Crescent31Thu
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 9:16 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 13% 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 (13% 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