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 40m 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 - Jun 1929

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:423.33:183.58:520.59:350.75:118:10Third Quarter1Sat
2Sun3:373.34:133.89:440.410:410.55:108:11Waning Crescent2Sun
3Mon4:373.45:114.210:330.111:360.25:108:12Waning Crescent3Mon
4Tue5:383.66:074.611:20-0.15:098:12Waning Crescent4Tue
5Wed6:363.87:014.912:270.012:07-0.35:098:13Waning Crescent5Wed
6Thu7:304.17:535.21:18-0.212:56-0.45:098:14New Moon6Thu
7Fri8:224.28:455.32:12-0.31:47-0.45:088:14New Moon7Fri
8Sat9:154.49:385.33:08-0.32:40-0.45:088:15New Moon8Sat
9Sun10:094.410:335.14:03-0.33:36-0.35:088:16Waxing Crescent9Sun
10Mon11:044.411:294.94:57-0.14:31-0.15:088:16Waxing Crescent10Mon
11Tue12:024.35:510.05:270.15:088:17Waxing Crescent11Tue
12Wed12:274.61:014.36:550.26:320.45:088:17First Quarter12Wed
13Thu1:254.31:584.28:090.38:100.65:088:18First Quarter13Thu
14Fri2:214.02:554.29:110.49:480.75:078:18First Quarter14Fri
15Sat3:173.73:534.29:590.510:510.75:078:19First Quarter15Sat
16Sun4:153.54:514.210:340.511:390.65:078:19Waxing Gibbous16Sun
17Mon5:143.35:474.211:020.55:088:19Waxing Gibbous17Mon
18Tue6:093.36:364.312:160.611:33 AM0.55:088:20Waxing Gibbous18Tue
19Wed6:573.47:204.312:490.512:090.45:088:20Waxing Gibbous19Wed
20Thu7:413.48:014.31:220.412:480.45:088:20Full Moon20Thu
21Fri8:223.58:394.21:590.41:290.45:088:20Full Moon21Fri
22Sat9:013.59:174.12:400.32:140.35:088:21Full Moon22Sat
23Sun9:393.59:534.03:210.32:580.45:098:21Full Moon23Sun
24Mon10:183.410:303.94:000.33:410.45:098:21Waning Gibbous24Mon
25Tue10:573.311:083.84:350.34:220.55:098:21Waning Gibbous25Tue
26Wed11:393.311:503.65:090.45:020.65:108:21Waning Gibbous26Wed
27Thu12:233.35:430.45:450.75:108:21Waning Gibbous27Thu
28Fri12:343.61:083.46:200.56:340.75:108:21Third Quarter28Fri
29Sat1:213.51:543.67:030.47:370.85:118:21Third Quarter29Sat
30Sun2:103.42:433.87:540.48:520.75:118:21Third 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 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