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 6h 02m 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 - Aug 1932

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:523.78:094.31:540.31:250.25:378:01New Moon1Mon
2Tue8:353.98:514.52:340.22:120.05:388:00New Moon2Tue
3Wed9:184.29:344.63:110.02:590.05:397:59New Moon3Wed
4Thu10:034.410:194.53:44-0.13:450.05:407:58Waxing Crescent4Thu
5Fri10:504.511:064.44:17-0.24:310.05:417:56Waxing Crescent5Fri
6Sat11:404.611:574.24:52-0.15:190.15:427:55Waxing Crescent6Sat
7Sun12:324.65:30-0.16:120.35:437:54First Quarter7Sun
8Mon12:513.91:274.66:140.17:170.65:447:53First Quarter8Mon
9Tue1:483.72:244.57:060.38:570.75:457:51First Quarter9Tue
10Wed2:473.63:254.48:110.410:370.75:467:50First Quarter10Wed
11Thu3:523.54:334.49:270.511:430.65:477:49Waxing Gibbous11Thu
12Fri5:013.55:424.510:450.55:487:47Waxing Gibbous12Fri
13Sat6:073.76:424.612:360.511:51 AM0.45:497:46Waxing Gibbous13Sat
14Sun7:034.07:344.71:230.412:460.35:507:45Full Moon14Sun
15Mon7:544.28:214.72:040.31:360.25:517:43Full Moon15Mon
16Tue8:414.49:044.72:380.22:230.25:527:42Full Moon16Tue
17Wed9:254.59:464.53:070.23:070.25:537:40Full Moon17Wed
18Thu10:084.410:264.23:340.23:480.25:547:39Waning Gibbous18Thu
19Fri10:494.311:063.94:020.24:270.45:557:37Waning Gibbous19Fri
20Sat11:304.111:463.64:330.25:060.55:567:36Waning Gibbous20Sat
21Sun12:113.95:060.35:460.75:577:34Waning Gibbous21Sun
22Mon12:283.312:523.75:420.56:320.95:587:33Third Quarter22Mon
23Tue1:113.11:333.56:220.67:321.15:597:31Third Quarter23Tue
24Wed1:572.92:173.47:120.89:011.16:007:30Third Quarter24Wed
25Thu2:452.83:083.38:140.910:251.16:017:28Third Quarter25Thu
26Fri3:412.84:093.39:240.911:210.96:027:26Waning Crescent26Fri
27Sat4:452.95:153.510:320.76:037:25Waning Crescent27Sat
28Sun5:463.26:113.812:050.711:29 AM0.56:057:23Waning Crescent28Sun
29Mon6:373.66:584.212:430.512:190.36:067:22Waning Crescent29Mon
30Tue7:234.07:424.51:190.21:060.06:077:20New Moon30Tue
31Wed8:084.48:254.71:550.01:54-0.16:087:18New Moon31Wed
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