Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 7:50 am (0.4 ft)
Next high tide (tomorrow) : in 3h 21m at 1:38 am (4.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:08 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Sep 2034

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri10:314.910:554.63:48-0.44:19-0.16:097:16Waning Gibbous1Fri
2Sat11:224.911:484.44:29-0.35:060.06:107:15Waning Gibbous2Sat
3Sun12:164.85:12-0.25:590.36:117:13Waning Gibbous3Sun
4Mon12:444.21:144.76:000.17:070.56:127:11Third Quarter4Mon
5Tue1:434.12:144.56:570.39:180.66:137:10Third Quarter5Tue
6Wed2:434.03:164.48:090.510:380.66:147:08Third Quarter6Wed
7Thu3:463.94:224.49:370.511:360.56:157:06Waning Crescent7Thu
8Fri4:524.05:284.410:590.56:167:04Waning Crescent8Fri
9Sat5:544.26:274.612:230.411:55 AM0.46:177:03Waning Crescent9Sat
10Sun6:494.57:174.61:030.312:400.36:187:01Waning Crescent10Sun
11Mon7:384.78:034.71:340.21:210.26:196:59New Moon11Mon
12Tue8:244.88:454.62:010.22:020.16:206:58New Moon12Tue
13Wed9:074.89:264.52:280.12:420.16:216:56New Moon13Wed
14Thu9:484.610:064.22:590.13:220.26:226:54Waxing Crescent14Thu
15Fri10:284.410:454.03:330.24:020.26:236:52Waxing Crescent15Fri
16Sat11:094.211:263.74:080.24:410.46:246:51Waxing Crescent16Sat
17Sun11:493.94:440.35:210.56:256:49Waxing Crescent17Sun
18Mon12:083.412:323.75:230.56:050.76:266:47Waxing Crescent18Mon
19Tue12:523.21:163.56:050.76:570.96:276:45First Quarter19Tue
20Wed1:383.12:023.46:560.88:071.06:286:44First Quarter20Wed
21Thu2:263.02:513.48:000.99:301.06:296:42First Quarter21Thu
22Fri3:183.13:463.49:140.910:330.86:306:40First Quarter22Fri
23Sat4:163.24:453.610:220.711:180.56:326:39Waxing Gibbous23Sat
24Sun5:163.55:423.911:190.411:570.36:336:37Waxing Gibbous24Sun
25Mon6:103.96:344.212:070.26:346:35Waxing Gibbous25Mon
26Tue6:584.47:214.512:350.012:53-0.16:356:33Full Moon26Tue
27Wed7:454.88:084.81:13-0.21:40-0.36:366:32Full Moon27Wed
28Thu8:325.18:564.91:54-0.42:28-0.46:376:30Full Moon28Thu
29Fri9:205.39:454.92:37-0.53:18-0.46:386:28Full Moon29Fri
30Sat10:095.310:364.73:21-0.54:07-0.36:396:26Waning Gibbous30Sat
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 4:44 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 transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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