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 1h 33m at 9:00 pm (1.0 ft)
Next high tide (tomorrow) : 2:47 am (3.2 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 - Oct 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:464.211:043.63:480.24:240.36:406:25Waxing Crescent1Thu
2Fri11:254.011:453.44:240.35:030.56:416:23Waxing Crescent2Fri
3Sat12:053.75:010.55:440.76:426:22Waxing Crescent3Sat
4Sun12:283.212:493.55:410.66:320.86:436:20First Quarter4Sun
5Mon1:153.01:353.46:270.87:341.06:446:18First Quarter5Mon
6Tue2:033.02:243.37:250.98:591.06:456:17First Quarter6Tue
7Wed2:553.03:183.48:400.910:110.86:466:15First Quarter7Wed
8Thu3:523.24:183.59:560.811:000.66:476:13Waxing Gibbous8Thu
9Fri4:523.45:183.810:580.511:400.36:486:12Waxing Gibbous9Fri
10Sat5:483.86:134.111:500.26:496:10Waxing Gibbous10Sat
11Sun6:394.37:024.412:170.012:370.06:516:08Waxing Gibbous11Sun
12Mon7:274.87:504.712:55-0.21:24-0.36:526:07Full Moon12Mon
13Tue8:145.18:384.81:35-0.42:13-0.46:536:05Full Moon13Tue
14Wed9:025.39:274.82:18-0.53:03-0.46:546:04Full Moon14Wed
15Thu9:515.410:184.73:02-0.53:53-0.46:556:02Waning Gibbous15Thu
16Fri10:435.311:124.53:48-0.54:43-0.26:566:00Waning Gibbous16Fri
17Sat11:385.14:34-0.35:360.16:575:59Waning Gibbous17Sat
18Sun12:094.312:374.85:230.06:470.46:585:57Third Quarter18Sun
19Mon1:094.11:394.56:190.38:530.67:005:56Third Quarter19Mon
20Tue2:114.02:414.37:330.610:090.57:015:54Third Quarter20Tue
21Wed3:123.93:454.19:460.711:060.57:025:53Third Quarter21Wed
22Thu4:164.04:504.011:040.611:500.47:035:51Waning Crescent22Thu
23Fri5:194.15:494.011:520.57:045:50Waning Crescent23Fri
24Sat6:144.36:404.112:240.412:290.47:055:48Waning Crescent24Sat
25Sun6:024.56:244.112:460.311:59 AM0.36:074:47Waning Crescent25Sun
26Mon6:444.67:044.112:060.312:310.26:084:46New Moon26Mon
27Tue7:244.67:424.012:310.21:060.26:094:44New Moon27Tue
28Wed8:014.58:193.91:030.11:440.16:104:43New Moon28Wed
29Thu8:374.48:553.71:390.12:230.16:114:42New Moon29Thu
30Fri9:124.29:323.52:160.23:010.26:134:40Waxing Crescent30Fri
31Sat9:483.910:123.32:540.33:390.36:144:39Waxing Crescent31Sat
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 11:53 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 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