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 3h 38m at 7:40 pm (1.0 ft)
Next high tide (tomorrow) : 2:11 am (3.1 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 - Dec 1931

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:103.85:030.36:010.46:504:14Third Quarter1Tue
2Wed12:493.51:073.76:100.47:110.36:514:14Third Quarter2Wed
3Thu1:463.82:053.77:370.58:170.26:524:13Third Quarter3Thu
4Fri2:454.03:073.69:080.39:130.06:534:13Waning Crescent4Fri
5Sat3:464.44:113.710:170.110:03-0.16:544:13Waning Crescent5Sat
6Sun4:464.75:113.811:13-0.110:49-0.36:554:13Waning Crescent6Sun
7Mon5:425.06:073.912:04-0.26:564:13Waning Crescent7Mon
8Tue6:355.16:584.012:54-0.36:564:13New Moon8Tue
9Wed7:255.17:494.112:22-0.41:45-0.26:574:13New Moon9Wed
10Thu8:155.08:384.01:11-0.32:32-0.26:584:13New Moon10Thu
11Fri9:054.79:283.92:01-0.23:150.06:594:13Waxing Crescent11Fri
12Sat9:544.410:183.72:49-0.13:540.17:004:13Waxing Crescent12Sat
13Sun10:454.011:113.53:360.14:320.37:014:13Waxing Crescent13Sun
14Mon11:363.74:230.35:130.47:024:13Waxing Crescent14Mon
15Tue12:043.412:263.45:140.66:000.57:024:13First Quarter15Tue
16Wed12:563.31:133.16:190.86:540.67:034:13First Quarter16Wed
17Thu1:453.22:002.97:470.87:490.67:044:14First Quarter17Thu
18Fri2:353.22:492.79:040.88:390.57:044:14First Quarter18Fri
19Sat3:273.23:432.79:590.69:260.47:054:14Waxing Gibbous19Sat
20Sun4:193.34:372.710:440.510:100.37:064:15Waxing Gibbous20Sun
21Mon5:063.55:252.911:260.310:530.17:064:15Waxing Gibbous21Mon
22Tue5:473.76:083.012:070.27:074:16Waxing Gibbous22Tue
23Wed6:273.86:503.212:490.17:074:16Full Moon23Wed
24Thu7:064.07:323.412:16-0.11:310.07:084:17Full Moon24Thu
25Fri7:474.18:153.51:00-0.22:13-0.17:084:17Full Moon25Fri
26Sat8:304.29:003.61:44-0.22:52-0.17:084:18Full Moon26Sat
27Sun9:164.29:483.62:29-0.33:29-0.17:094:19Waning Gibbous27Sun
28Mon10:044.110:383.73:15-0.24:05-0.17:094:19Waning Gibbous28Mon
29Tue10:564.011:323.74:02-0.14:45-0.17:094:20Waning Gibbous29Tue
30Wed11:503.84:550.05:310.07:094:21Third Quarter30Wed
31Thu12:273.912:453.65:580.26:250.07:104:22Third Quarter31Thu
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 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