Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 4:33 am (0.1 ft)
Next high tide : in 4h 50m at 10:43 pm (4.0 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 2088

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:394.38:574.32:130.02:310.06:107:15Full Moon1Wed
2Thu9:184.49:374.32:47-0.13:110.06:117:13Full Moon2Thu
3Fri9:594.510:214.33:22-0.13:510.06:127:11Waning Gibbous3Fri
4Sat10:444.511:094.23:58-0.14:320.16:137:10Waning Gibbous4Sat
5Sun11:334.54:36-0.15:150.26:147:08Waning Gibbous5Sun
6Mon12:014.012:264.45:190.06:040.46:157:06Third Quarter6Mon
7Tue12:573.91:244.46:080.27:090.66:167:05Third Quarter7Tue
8Wed1:553.82:244.37:080.39:040.76:177:03Third Quarter8Wed
9Thu2:563.93:274.38:220.410:380.66:187:01Third Quarter9Thu
10Fri4:004.04:344.49:470.411:350.46:197:00Waning Crescent10Fri
11Sat5:064.25:404.611:050.36:206:58Waning Crescent11Sat
12Sun6:084.56:384.812:200.212:050.16:216:56Waning Crescent12Sun
13Mon7:034.87:294.912:590.112:560.06:226:54New Moon13Mon
14Tue7:535.18:174.91:340.01:44-0.16:236:53New Moon14Tue
15Wed8:405.29:024.82:09-0.12:30-0.16:246:51New Moon15Wed
16Thu9:265.19:474.62:43-0.13:140.06:256:49New Moon16Thu
17Fri10:114.910:314.33:190.03:540.16:266:47Waxing Crescent17Fri
18Sat10:574.711:174.03:550.14:330.36:276:46Waxing Crescent18Sat
19Sun11:434.34:320.35:120.56:286:44Waxing Crescent19Sun
20Mon12:043.712:314.05:110.45:550.76:296:42Waxing Crescent20Mon
21Tue12:523.41:203.75:540.66:470.96:306:40First Quarter21Tue
22Wed1:423.22:093.56:460.87:591.06:316:39First Quarter22Wed
23Thu2:313.12:593.37:511.09:271.06:336:37First Quarter23Thu
24Fri3:233.13:533.39:111.010:290.96:346:35First Quarter24Fri
25Sat4:193.24:493.410:230.811:130.76:356:33Waxing Gibbous25Sat
26Sun5:153.45:403.611:180.611:500.56:366:32Waxing Gibbous26Sun
27Mon6:043.76:253.812:030.46:376:30Waxing Gibbous27Mon
28Tue6:474.07:064.012:250.212:450.26:386:28Waxing Gibbous28Tue
29Wed7:274.37:474.212:590.01:260.06:396:27Full Moon29Wed
30Thu8:084.68:294.41:34-0.12:08-0.16:406:25Full Moon30Thu
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 1:38 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 91% 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 Waning Gibbous (91% 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