Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, August 20, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 9:11 pm (1.1 ft)
Next high tide : in 1h 10m at 2:45 pm (3.6 ft)
Sunset today : 7:35 pm
Sunrise tomorrow : 5:57 am
Moon phase : First Quarter (55% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - May 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed1:403.12:132.87:450.87:420.95:407:40Third Quarter1Wed
2Thu2:303.03:042.99:040.89:050.85:387:41Third Quarter2Thu
3Fri3:233.13:593.110:040.610:200.75:377:42Third Quarter3Fri
4Sat4:223.24:573.410:480.411:170.45:367:43Waning Crescent4Sat
5Sun5:213.45:513.911:270.25:347:44Waning Crescent5Sun
6Mon6:153.76:404.312:050.112:05-0.15:337:45Waning Crescent6Mon
7Tue7:043.97:274.712:51-0.112:44-0.35:327:47New Moon7Tue
8Wed7:534.18:145.01:38-0.31:26-0.45:317:48New Moon8Wed
9Thu8:424.29:025.22:27-0.42:11-0.55:307:49New Moon9Thu
10Fri9:324.39:525.23:18-0.42:58-0.55:287:50New Moon10Fri
11Sat10:244.210:455.04:08-0.43:47-0.45:277:51Waxing Crescent11Sat
12Sun11:194.111:424.74:58-0.24:38-0.25:267:52Waxing Crescent12Sun
13Mon12:174.05:540.15:310.15:257:53Waxing Crescent13Mon
14Tue12:434.51:183.97:150.36:350.45:247:54First Quarter14Tue
15Wed1:444.22:183.98:530.48:110.65:237:55First Quarter15Wed
16Thu2:454.03:194.010:000.410:090.65:227:56First Quarter16Thu
17Fri3:463.84:214.010:510.411:140.55:217:57First Quarter17Fri
18Sat4:493.75:214.211:290.45:207:58Waxing Gibbous18Sat
19Sun5:473.66:154.412:020.411:56 AM0.35:197:59Waxing Gibbous19Sun
20Mon6:383.77:024.512:400.412:180.35:198:00Waxing Gibbous20Mon
21Tue7:243.77:454.51:130.312:450.25:188:01Full Moon21Tue
22Wed8:063.78:254.51:460.21:180.25:178:02Full Moon22Wed
23Thu8:463.69:034.42:210.21:550.25:168:03Full Moon23Thu
24Fri9:253.59:404.22:590.22:360.25:158:03Full Moon24Fri
25Sat10:043.410:174.03:370.23:180.35:158:04Waning Gibbous25Sat
26Sun10:433.310:553.84:150.33:590.45:148:05Waning Gibbous26Sun
27Mon11:243.211:363.64:530.44:400.55:138:06Waning Gibbous27Mon
28Tue12:083.15:310.55:220.65:138:07Waning Gibbous28Tue
29Wed12:193.412:543.16:120.66:090.85:128:08Waning Gibbous29Wed
30Thu1:053.31:413.17:000.77:060.85:128:09Third Quarter30Thu
31Fri1:533.32:283.37:560.78:180.95:118:09Third Quarter31Fri
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 5:58 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 neap phase. Tonight's moon is 55% 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 minimum.

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 (55% illuminated). This places Mattapoisett Harbor, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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