Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 5h 30m at 9:11 pm (1.1 ft)
Next high tide (tomorrow) : 3:03 am (2.9 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Feb 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:113.41:272.86:550.66:430.46:554:58Third Quarter1Fri
2Sat2:023.22:192.58:200.77:430.56:544:59Third Quarter2Sat
3Sun2:583.13:182.49:350.68:480.56:535:00Waning Crescent3Sun
4Mon4:023.04:222.510:280.59:500.46:525:02Waning Crescent4Mon
5Tue5:013.15:172.711:130.410:440.36:515:03Waning Crescent5Tue
6Wed5:483.36:022.911:540.211:320.16:505:04Waning Crescent6Wed
7Thu6:273.56:413.112:340.16:495:06Waning Crescent7Thu
8Fri7:033.77:193.312:16-0.11:14-0.16:475:07New Moon8Fri
9Sat7:383.87:563.512:59-0.21:50-0.26:465:08New Moon9Sat
10Sun8:143.98:343.61:41-0.32:22-0.36:455:09New Moon10Sun
11Mon8:523.99:143.72:21-0.42:52-0.46:445:11Waxing Crescent11Mon
12Tue9:323.99:563.83:00-0.33:22-0.46:425:12Waxing Crescent12Tue
13Wed10:173.710:423.83:39-0.33:54-0.46:415:13Waxing Crescent13Wed
14Thu11:053.611:323.84:20-0.24:31-0.36:405:14Waxing Crescent14Thu
15Fri11:583.45:080.05:15-0.26:385:16First Quarter15Fri
16Sat12:263.812:553.26:080.26:08-0.16:375:17First Quarter16Sat
17Sun1:233.81:553.17:360.47:150.06:365:18First Quarter17Sun
18Mon2:273.83:023.19:380.38:320.16:345:19First Quarter18Mon
19Tue3:393.94:123.310:480.29:510.06:335:21Waxing Gibbous19Tue
20Wed4:504.15:173.611:430.010:59-0.26:315:22Waxing Gibbous20Wed
21Thu5:514.36:133.912:32-0.26:305:23Waxing Gibbous21Thu
22Fri6:444.57:044.21:16-0.36:295:24Full Moon22Fri
23Sat7:324.67:524.412:51-0.51:55-0.46:275:26Full Moon23Sat
24Sun8:184.58:394.51:42-0.62:27-0.46:265:27Full Moon24Sun
25Mon9:024.49:244.42:28-0.52:55-0.46:245:28Waning Gibbous25Mon
26Tue9:454.010:094.23:09-0.43:23-0.36:235:29Waning Gibbous26Tue
27Wed10:293.710:544.03:47-0.23:54-0.26:215:30Waning Gibbous27Wed
28Thu11:133.311:403.64:260.04:270.06:195:32Waning Gibbous28Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

Common Questions About Mattapoisett Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Mattapoisett Harbor, MA today?

Slack tide in Mattapoisett Harbor, MA is approximately 12:07 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 55% 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 (55% 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