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 15m 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 - Jul 1978

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat5:493.56:224.212:130.611:14 AM0.55:128:21Waning Crescent1Sat
2Sun6:413.67:094.212:480.611:54 AM0.45:128:21Waning Crescent2Sun
3Mon7:273.77:514.31:190.512:350.45:138:21New Moon3Mon
4Tue8:103.78:304.21:520.41:180.35:148:21New Moon4Tue
5Wed8:503.89:064.22:290.32:030.25:148:20New Moon5Wed
6Thu9:293.89:414.13:070.22:470.25:158:20New Moon6Thu
7Fri10:073.710:164.03:440.23:310.25:158:20Waxing Crescent7Fri
8Sat10:453.710:513.84:170.24:120.35:168:19Waxing Crescent8Sat
9Sun11:243.611:303.74:490.34:510.45:178:19Waxing Crescent9Sun
10Mon12:063.65:200.35:310.55:188:19Waxing Crescent10Mon
11Tue12:123.612:493.65:540.36:160.65:188:18First Quarter11Tue
12Wed12:583.51:353.76:340.47:100.75:198:18First Quarter12Wed
13Thu1:483.42:243.97:230.48:160.75:208:17First Quarter13Thu
14Fri2:413.43:174.08:210.39:300.65:218:17First Quarter14Fri
15Sat3:393.54:184.39:240.210:410.45:218:16Waxing Gibbous15Sat
16Sun4:453.65:224.510:270.111:420.25:228:15Waxing Gibbous16Sun
17Mon5:503.96:234.911:27-0.15:238:15Waxing Gibbous17Mon
18Tue6:504.27:205.212:370.012:24-0.35:248:14Full Moon18Tue
19Wed7:464.68:135.41:30-0.21:20-0.45:258:13Full Moon19Wed
20Thu8:404.89:065.52:24-0.42:17-0.45:268:13Full Moon20Thu
21Fri9:335.09:585.43:16-0.43:15-0.45:268:12Full Moon21Fri
22Sat10:255.010:505.24:04-0.44:11-0.35:278:11Waning Gibbous22Sat
23Sun11:195.011:434.94:47-0.35:030.05:288:10Waning Gibbous23Sun
24Mon12:144.85:28-0.15:580.35:298:09Waning Gibbous24Mon
25Tue12:374.51:104.66:110.17:070.65:308:08Third Quarter25Tue
26Wed1:314.12:054.46:580.48:520.85:318:07Third Quarter26Wed
27Thu2:253.83:004.27:520.510:080.85:328:06Third Quarter27Thu
28Fri3:203.53:584.08:520.711:040.85:338:05Third Quarter28Fri
29Sat4:193.44:593.99:510.711:460.85:348:04Waning Crescent29Sat
30Sun5:203.45:573.910:440.75:358:03Waning Crescent30Sun
31Mon6:153.46:464.012:210.711:31 AM0.65:368:02Waning Crescent31Mon
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