Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Friday, July 31, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 4:04 am (0.1 ft)
Next high tide : in 2h 40m at 10:03 pm (4.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:133.53:514.38:400.611:090.76:097:16First Quarter1Sun
2Mon4:213.65:024.410:110.66:107:15Waxing Gibbous2Mon
3Tue5:303.86:074.512:050.511:30 AM0.46:117:13Waxing Gibbous3Tue
4Wed6:304.17:024.712:510.412:280.36:127:11Waxing Gibbous4Wed
5Thu7:234.47:504.81:310.31:180.26:137:10Full Moon5Thu
6Fri8:114.68:354.82:040.22:040.16:147:08Full Moon6Fri
7Sat8:564.79:174.62:330.12:480.16:157:06Full Moon7Sat
8Sun9:394.79:584.43:010.13:280.16:167:05Full Moon8Sun
9Mon10:204.610:394.13:310.14:060.26:177:03Waning Gibbous9Mon
10Tue11:014.411:213.74:030.24:440.46:187:01Waning Gibbous10Tue
11Wed11:434.14:370.35:220.66:196:59Waning Gibbous11Wed
12Thu12:043.412:253.85:130.46:040.86:206:58Waning Gibbous12Thu
13Fri12:503.21:103.55:530.66:561.06:216:56Third Quarter13Fri
14Sat1:373.01:573.36:410.88:201.26:226:54Third Quarter14Sat
15Sun2:272.92:473.27:421.010:021.16:236:52Third Quarter15Sun
16Mon3:212.83:463.28:581.011:011.06:246:51Third Quarter16Mon
17Tue4:212.94:513.310:130.911:430.86:256:49Waning Crescent17Tue
18Wed5:223.25:473.611:130.66:266:47Waning Crescent18Wed
19Thu6:133.56:333.912:180.612:020.46:276:45Waning Crescent19Thu
20Fri6:573.97:154.212:510.312:470.26:286:44Waning Crescent20Fri
21Sat7:404.37:564.41:220.11:310.06:296:42New Moon21Sat
22Sun8:224.78:394.51:55-0.12:16-0.26:306:40New Moon22Sun
23Mon9:054.99:244.52:30-0.33:02-0.26:316:39New Moon23Mon
24Tue9:505.110:114.43:07-0.33:48-0.26:336:37Waxing Crescent24Tue
25Wed10:385.011:024.23:46-0.34:34-0.16:346:35Waxing Crescent25Wed
26Thu11:304.911:573.94:28-0.25:220.26:356:33Waxing Crescent26Thu
27Fri12:284.75:130.16:180.56:366:32First Quarter27Fri
28Sat12:573.81:294.56:040.37:570.76:376:30First Quarter28Sat
29Sun1:593.62:334.37:100.69:590.76:386:28First Quarter29Sun
30Mon3:033.63:404.28:520.811:040.66:396:26First Quarter30Mon
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 1:03 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 96% 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 (96% 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