Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 11:04 pm (0.9 ft)
Next high tide : in 5h 24m at 4:21 pm (3.7 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:29 am
Moon phase : Waxing Gibbous (71% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:223.43:554.19:000.510:270.66:087:17Waxing Gibbous1Sat
2Sun4:273.65:014.310:130.311:270.36:097:16Waxing Gibbous2Sun
3Mon5:334.06:044.711:190.16:107:14Waxing Gibbous3Mon
4Tue6:324.47:015.012:180.012:18-0.26:117:12Waxing Gibbous4Tue
5Wed7:274.97:535.31:05-0.21:13-0.46:127:11Full Moon5Wed
6Thu8:195.28:445.41:51-0.42:09-0.56:137:09Full Moon6Thu
7Fri9:105.49:355.32:38-0.53:05-0.56:147:07Full Moon7Fri
8Sat10:015.510:255.13:23-0.53:58-0.36:157:06Waning Gibbous8Sat
9Sun10:535.311:184.84:06-0.44:49-0.16:167:04Waning Gibbous9Sun
10Mon11:475.14:48-0.25:400.26:177:02Waning Gibbous10Mon
11Tue12:124.412:434.75:310.16:410.56:187:00Third Quarter11Tue
12Wed1:084.11:404.46:180.48:350.86:196:59Third Quarter12Wed
13Thu2:053.82:384.17:150.79:570.86:216:57Third Quarter13Thu
14Fri3:033.63:393.98:280.910:550.86:226:55Third Quarter14Fri
15Sat4:033.54:423.89:550.911:390.86:236:54Waning Crescent15Sat
16Sun5:053.65:423.810:560.86:246:52Waning Crescent16Sun
17Mon6:013.76:313.912:110.711:40 AM0.76:256:50Waning Crescent17Mon
18Tue6:483.97:124.012:370.612:200.56:266:48Waning Crescent18Tue
19Wed7:294.07:484.01:030.412:590.36:276:47New Moon19Wed
20Thu8:064.18:224.11:330.31:400.26:286:45New Moon20Thu
21Fri8:414.28:544.02:060.22:210.16:296:43New Moon21Fri
22Sat9:154.29:284.02:390.13:010.16:306:41New Moon22Sat
23Sun9:494.210:033.93:120.13:390.26:316:40Waxing Crescent23Sun
24Mon10:254.110:423.73:440.14:150.26:326:38Waxing Crescent24Mon
25Tue11:044.111:263.64:160.24:510.36:336:36Waxing Crescent25Tue
26Wed11:494.04:510.35:290.56:346:34Waxing Crescent26Wed
27Thu12:153.512:393.95:300.46:160.66:356:33First Quarter27Thu
28Fri1:083.41:343.96:180.57:160.76:366:31First Quarter28Fri
29Sat2:053.52:324.07:200.68:380.76:376:29First Quarter29Sat
30Sun3:043.63:344.18:370.510:050.56:386:28First Quarter30Sun
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 7:42 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 transitional phase. Tonight's moon is 71% 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 shifting between spring and neap.

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 Waxing Gibbous (71% illuminated). This places Mattapoisett Harbor, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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