Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 2h 40m at 7:18 am (0.6 ft)
Next high tide : 2:32 pm (4.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:27 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Dec 2068

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat12:103.712:323.95:290.36:080.16:514:13First Quarter1Sat
2Sun1:063.91:293.86:430.47:140.16:524:13First Quarter2Sun
3Mon2:044.12:293.78:210.48:210.16:534:13First Quarter3Mon
4Tue3:054.33:333.89:480.29:22-0.16:544:13Waxing Gibbous4Tue
5Wed4:094.54:363.910:490.010:17-0.26:554:12Waxing Gibbous5Wed
6Thu5:104.85:354.011:42-0.111:07-0.36:564:12Waxing Gibbous6Thu
7Fri6:055.06:294.212:32-0.26:574:12Full Moon7Fri
8Sat6:575.17:204.31:21-0.36:584:12Full Moon8Sat
9Sun7:465.08:094.312:44-0.42:08-0.26:594:12Full Moon9Sun
10Mon8:354.98:584.21:32-0.42:50-0.26:594:12Full Moon10Mon
11Tue9:224.69:474.12:20-0.23:26-0.17:004:13Waning Gibbous11Tue
12Wed10:104.210:373.93:06-0.13:590.17:014:13Waning Gibbous12Wed
13Thu10:583.911:273.73:500.14:340.27:024:13Waning Gibbous13Thu
14Fri11:463.54:360.35:140.47:024:13Third Quarter14Fri
15Sat12:183.512:333.25:270.56:000.57:034:13Third Quarter15Sat
16Sun1:073.41:193.06:300.76:550.57:044:14Third Quarter16Sun
17Mon1:553.32:052.87:480.87:540.57:044:14Third Quarter17Mon
18Tue2:453.22:562.79:030.78:510.47:054:15Waning Crescent18Tue
19Wed3:383.33:532.710:000.59:420.37:064:15Waning Crescent19Wed
20Thu4:313.44:472.810:480.410:280.27:064:15Waning Crescent20Thu
21Fri5:183.65:353.011:310.211:110.07:074:16Waning Crescent21Fri
22Sat6:003.86:193.312:120.07:074:16New Moon22Sat
23Sun6:414.07:013.512:54-0.17:074:17New Moon23Sun
24Mon7:214.27:443.712:36-0.31:35-0.27:084:18New Moon24Mon
25Tue8:044.38:283.81:19-0.32:14-0.37:084:18New Moon25Tue
26Wed8:484.49:143.92:04-0.42:52-0.47:084:19Waxing Crescent26Wed
27Thu9:344.310:033.92:49-0.43:29-0.47:094:20Waxing Crescent27Thu
28Fri10:244.210:554.03:34-0.34:08-0.47:094:20Waxing Crescent28Fri
29Sat11:174.011:504.04:23-0.14:51-0.37:094:21Waxing Crescent29Sat
30Sun12:123.85:180.15:40-0.27:094:22First Quarter30Sun
31Mon12:464.11:093.76:290.26:39-0.17:094:23First Quarter31Mon
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 10:55 am — 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 52% 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 (52% 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