Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, August 15, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 1h 49m at 4:25 pm (0.1 ft)
Next high tide : 10:57 pm (4.4 ft)
Sunset today : 7:43 pm
Sunrise tomorrow : 5:52 am
Moon phase : Waxing Crescent (11% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Dec 1939

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:564.311:334.03:56-0.14:430.06:504:14Waning Gibbous1Fri
2Sat11:534.24:490.15:360.16:514:13Third Quarter2Sat
3Sun12:314.012:514.05:530.36:430.26:524:13Third Quarter3Sun
4Mon1:294.11:503.97:200.48:020.26:534:13Third Quarter4Mon
5Tue2:294.32:523.89:060.39:090.16:544:13Waning Crescent5Tue
6Wed3:314.43:563.810:170.210:010.06:554:13Waning Crescent6Wed
7Thu4:334.64:583.911:110.110:46-0.16:564:13Waning Crescent7Thu
8Fri5:304.85:534.011:570.011:27-0.26:564:13Waning Crescent8Fri
9Sat6:224.96:444.112:40-0.16:574:13New Moon9Sat
10Sun7:104.97:314.112:09-0.21:21-0.16:584:13New Moon10Sun
11Mon7:564.88:174.112:52-0.21:59-0.16:594:13New Moon11Mon
12Tue8:414.69:023.91:36-0.12:35-0.17:004:13New Moon12Tue
13Wed9:254.39:473.82:20-0.13:100.07:014:13Waxing Crescent13Wed
14Thu10:084.010:333.63:030.03:450.17:024:13Waxing Crescent14Thu
15Fri10:523.711:193.43:460.24:220.27:024:13Waxing Crescent15Fri
16Sat11:363.44:300.45:030.37:034:13Waxing Crescent16Sat
17Sun12:053.212:203.15:190.55:480.47:044:14First Quarter17Sun
18Mon12:503.11:032.96:190.76:410.57:044:14First Quarter18Mon
19Tue1:343.11:472.87:350.77:390.47:054:14First Quarter19Tue
20Wed2:203.12:372.88:540.78:360.47:064:15First Quarter20Wed
21Thu3:113.23:332.89:540.59:280.27:064:15Waxing Gibbous21Thu
22Fri4:073.44:323.010:430.310:160.07:074:16Waxing Gibbous22Fri
23Sat5:003.75:243.211:270.111:02-0.27:074:16Waxing Gibbous23Sat
24Sun5:484.06:133.512:09-0.17:084:17Waxing Gibbous24Sun
25Mon6:344.37:003.812:52-0.37:084:17Full Moon25Mon
26Tue7:214.57:484.012:33-0.51:36-0.47:084:18Full Moon26Tue
27Wed8:084.78:364.21:20-0.62:20-0.57:094:19Full Moon27Wed
28Thu8:564.79:264.32:10-0.63:02-0.57:094:19Waning Gibbous28Thu
29Fri9:464.610:194.32:59-0.63:44-0.57:094:20Waning Gibbous29Fri
30Sat10:404.411:144.33:49-0.44:27-0.47:094:21Waning Gibbous30Sat
31Sun11:354.24:42-0.25:14-0.27:104:22Third Quarter31Sun
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 7:41 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 Waxing 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