Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 7:40 pm (1.0 ft)
Next high tide : in 3h 51m at 1:54 pm (3.9 ft)
Sunset today : 7:37 pm
Sunrise tomorrow : 5:56 am
Moon phase : First Quarter (46% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - May 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:593.46:233.912:030.511:51 AM0.45:397:40Waning Crescent1Sun
2Mon6:443.47:054.012:340.412:140.35:387:42Waning Crescent2Mon
3Tue7:243.57:414.11:060.312:440.25:377:43Waning Crescent3Tue
4Wed8:003.58:154.21:410.21:180.15:357:44New Moon4Wed
5Thu8:363.58:484.12:180.11:540.15:347:45New Moon5Thu
6Fri9:123.49:204.12:570.12:320.15:337:46New Moon6Fri
7Sat9:483.49:543.93:340.13:100.25:327:47New Moon7Sat
8Sun10:273.310:323.84:100.23:480.25:307:48Waxing Crescent8Sun
9Mon11:093.211:143.74:440.34:270.35:297:49Waxing Crescent9Mon
10Tue11:563.15:190.45:070.45:287:50Waxing Crescent10Tue
11Wed12:033.612:473.15:590.55:540.55:277:51Waxing Crescent11Wed
12Thu12:573.51:393.26:500.66:530.65:267:52First Quarter12Thu
13Fri1:523.52:333.47:560.68:080.65:257:53First Quarter13Fri
14Sat2:493.63:303.79:050.49:310.55:247:54First Quarter14Sat
15Sun3:493.64:304.110:020.210:450.25:237:55Waxing Gibbous15Sun
16Mon4:543.75:314.510:530.011:460.05:227:56Waxing Gibbous16Mon
17Tue5:563.96:275.011:40-0.25:217:57Waxing Gibbous17Tue
18Wed6:534.17:215.312:41-0.212:26-0.45:207:58Full Moon18Wed
19Thu7:474.28:125.41:34-0.31:14-0.45:197:59Full Moon19Thu
20Fri8:394.39:045.42:29-0.42:04-0.45:188:00Full Moon20Fri
21Sat9:314.39:565.23:24-0.32:56-0.35:178:01Full Moon21Sat
22Sun10:244.210:504.94:16-0.23:49-0.15:178:02Waning Gibbous22Sun
23Mon11:184.111:464.55:050.04:400.15:168:03Waning Gibbous23Mon
24Tue12:153.95:540.35:330.45:158:04Waning Gibbous24Tue
25Wed12:424.21:123.86:530.56:340.75:148:05Third Quarter25Wed
26Thu1:383.92:083.78:050.68:110.95:148:05Third Quarter26Thu
27Fri2:313.63:033.79:030.79:480.95:138:06Third Quarter27Fri
28Sat3:243.33:583.79:430.710:430.85:138:07Third Quarter28Sat
29Sun4:183.24:533.710:150.611:250.75:128:08Waning Crescent29Sun
30Mon5:133.15:453.810:490.55:118:09Waning Crescent30Mon
31Tue6:043.16:293.912:010.611:25 AM0.45:118:10Waning Crescent31Tue
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 4:47 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 neap phase. Tonight's moon is 46% 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 minimum.

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 (46% illuminated). This places Mattapoisett Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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