Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Tuesday, August 11, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 4h 53m at 12:56 pm (-0.1 ft)
Next high tide : 7:47 pm (5.0 ft)
Sunset today : 7:48 pm
Sunrise tomorrow : 5:47 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Dec 1945

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:373.95:543.311:320.311:200.26:504:14Waning Crescent1Sat
2Sun6:164.06:323.412:080.26:514:13New Moon2Sun
3Mon6:524.17:083.412:470.16:524:13New Moon3Mon
4Tue7:264.17:443.412:320.01:270.06:534:13New Moon4Tue
5Wed8:004.18:213.41:100.02:070.06:544:13New Moon5Wed
6Thu8:364.09:003.31:490.02:440.06:554:13New Moon6Thu
7Fri9:143.99:423.32:280.03:200.16:564:13Waxing Crescent7Fri
8Sat9:573.810:273.23:060.13:550.16:574:13Waxing Crescent8Sat
9Sun10:443.711:183.23:460.24:330.26:584:13Waxing Crescent9Sun
10Mon11:363.74:310.35:180.36:594:13First Quarter10Mon
11Tue12:113.312:303.65:250.46:130.37:004:13First Quarter11Tue
12Wed1:053.51:263.66:340.47:170.27:004:13First Quarter12Wed
13Thu2:013.72:253.68:000.48:220.17:014:13First Quarter13Thu
14Fri3:014.03:283.79:260.29:21-0.17:024:13Waxing Gibbous14Fri
15Sat4:044.34:323.810:320.010:14-0.37:034:13Waxing Gibbous15Sat
16Sun5:044.75:314.011:28-0.211:04-0.57:034:14Waxing Gibbous16Sun
17Mon6:005.06:264.212:21-0.47:044:14Full Moon17Mon
18Tue6:535.27:184.31:14-0.57:054:14Full Moon18Tue
19Wed7:445.28:104.412:44-0.62:08-0.57:054:15Full Moon19Wed
20Thu8:355.19:014.31:35-0.62:57-0.47:064:15Full Moon20Thu
21Fri9:264.89:534.12:26-0.53:41-0.27:064:16Waning Gibbous21Fri
22Sat10:184.510:463.93:15-0.34:220.07:074:16Waning Gibbous22Sat
23Sun11:114.111:413.84:030.05:030.27:074:17Waning Gibbous23Sun
24Mon12:043.74:520.35:500.37:084:17Third Quarter24Mon
25Tue12:353.612:563.45:490.56:470.57:084:18Third Quarter25Tue
26Wed1:283.41:463.17:060.77:470.57:084:18Third Quarter26Wed
27Thu2:213.42:382.98:360.78:370.57:094:19Third Quarter27Thu
28Fri3:173.33:342.89:380.69:220.47:094:20Waning Crescent28Fri
29Sat4:133.44:302.810:250.510:050.37:094:20Waning Crescent29Sat
30Sun5:033.55:192.911:070.310:460.27:104:21Waning Crescent30Sun
31Mon5:463.66:013.011:470.211:250.07:104:22Waning Crescent31Mon
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 4:21 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 2% 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 New Moon (2% 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