Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Wednesday, August 19, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 2h 47m at 6:26 am (0.6 ft)
Next high tide : 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 - Jan 1933

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:383.84:460.25:130.17:104:23Waxing Crescent1Sun
2Mon12:093.812:283.45:410.45:540.27:104:24First Quarter2Mon
3Tue1:003.61:173.16:550.66:410.47:104:25First Quarter3Tue
4Wed1:513.42:072.88:270.77:350.47:104:26First Quarter4Wed
5Thu2:443.33:022.69:330.78:310.47:104:27First Quarter5Thu
6Fri3:433.24:022.610:210.69:260.47:104:28Waxing Gibbous6Fri
7Sat4:413.34:582.711:030.510:170.37:104:29Waxing Gibbous7Sat
8Sun5:303.35:462.811:440.311:050.17:104:30Waxing Gibbous8Sun
9Mon6:123.56:283.012:250.27:094:31Waxing Gibbous9Mon
10Tue6:493.67:073.21:060.17:094:32Full Moon10Tue
11Wed7:253.77:453.312:34-0.11:460.07:094:33Full Moon11Wed
12Thu8:003.88:243.41:17-0.22:22-0.17:094:34Full Moon12Thu
13Fri8:373.99:043.52:00-0.22:53-0.27:084:35Full Moon13Fri
14Sat9:163.99:463.62:40-0.23:22-0.27:084:36Waning Gibbous14Sat
15Sun9:593.810:313.63:20-0.23:51-0.27:074:37Waning Gibbous15Sun
16Mon10:453.611:193.74:02-0.14:24-0.27:074:38Waning Gibbous16Mon
17Tue11:363.54:480.05:04-0.27:074:39Third Quarter17Tue
18Wed12:113.812:303.35:430.15:52-0.17:064:41Third Quarter18Wed
19Thu1:053.81:273.16:540.36:510.07:054:42Third Quarter19Thu
20Fri2:033.92:293.08:290.38:010.07:054:43Third Quarter20Fri
21Sat3:094.03:383.110:020.29:150.07:044:44Waning Crescent21Sat
22Sun4:194.14:473.311:070.010:25-0.27:044:45Waning Crescent22Sun
23Mon5:244.45:483.612:03-0.17:034:47Waning Crescent23Mon
24Tue6:214.66:433.912:54-0.37:024:48New Moon24Tue
25Wed7:134.77:334.112:23-0.51:41-0.47:014:49New Moon25Wed
26Thu8:014.78:224.31:18-0.52:21-0.47:014:50New Moon26Thu
27Fri8:484.69:094.32:10-0.52:55-0.47:004:52New Moon27Fri
28Sat9:334.39:564.22:56-0.43:24-0.46:594:53Waxing Crescent28Sat
29Sun10:174.010:434.03:37-0.23:54-0.36:584:54Waxing Crescent29Sun
30Mon11:033.611:303.74:180.04:25-0.16:574:55Waxing Crescent30Mon
31Tue11:483.25:000.25:010.06:564:57First Quarter31Tue
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 10:10 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 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