Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 1h 10m at 1:36 am (0.0 ft)
Next high tide : 7:33 am (4.2 ft)
Sunset today : 8:17 pm
Sunrise tomorrow : 5:20 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Oct 1987

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu2:503.53:234.18:140.710:350.76:396:26First Quarter1Thu
2Fri3:563.64:324.29:540.611:270.56:406:24Waxing Gibbous2Fri
3Sat5:034.05:374.411:160.36:416:22Waxing Gibbous3Sat
4Sun6:054.46:334.612:090.212:150.16:426:21Waxing Gibbous4Sun
5Mon6:594.87:244.812:450.01:06-0.16:436:19Full Moon5Mon
6Tue7:485.18:114.81:19-0.11:55-0.26:456:17Full Moon6Tue
7Wed8:355.38:574.61:53-0.22:43-0.16:466:16Full Moon7Wed
8Thu9:205.29:424.42:30-0.23:27-0.16:476:14Full Moon8Thu
9Fri10:055.010:284.13:07-0.14:070.16:486:12Waning Gibbous9Fri
10Sat10:514.711:163.83:450.04:450.36:496:11Waning Gibbous10Sat
11Sun11:394.34:240.25:230.66:506:09Waning Gibbous11Sun
12Mon12:063.512:303.95:060.56:080.96:516:07Waning Gibbous12Mon
13Tue12:593.31:253.55:510.77:131.16:526:06Third Quarter13Tue
14Wed1:533.12:203.36:470.99:171.16:536:04Third Quarter14Wed
15Thu2:473.03:163.28:021.110:181.06:556:03Third Quarter15Thu
16Fri3:443.14:153.29:321.010:590.96:566:01Third Quarter16Fri
17Sat4:423.25:103.210:410.811:320.76:576:00Waning Crescent17Sat
18Sun5:343.45:543.411:300.66:585:58Waning Crescent18Sun
19Mon6:183.76:333.612:010.512:130.46:595:57Waning Crescent19Mon
20Tue6:564.07:093.712:300.312:530.27:005:55Waning Crescent20Tue
21Wed7:324.37:473.91:000.11:330.17:015:54New Moon21Wed
22Thu8:094.58:263.91:310.02:130.07:035:52New Moon22Thu
23Fri8:474.79:083.92:05-0.12:53-0.17:045:51New Moon23Fri
24Sat9:294.79:533.92:41-0.13:340.07:055:49Waxing Crescent24Sat
25Sun9:144.79:423.82:21-0.13:160.16:064:48Waxing Crescent25Sun
26Mon10:054.510:363.63:040.04:000.26:074:46Waxing Crescent26Mon
27Tue11:024.411:353.63:500.14:500.46:084:45Waxing Crescent27Tue
28Wed12:034.24:420.36:000.66:104:44First Quarter28Wed
29Thu12:373.61:064.15:470.58:050.66:114:42First Quarter29Thu
30Fri1:393.72:084.17:220.79:160.56:124:41First Quarter30Fri
31Sat2:423.93:134.19:190.510:040.36:134:40Waxing Gibbous31Sat
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 4:34 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 spring phase. Tonight's moon is 1% 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 maximum.

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 New Moon (1% illuminated). This places Mattapoisett Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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