Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Tuesday, July 21, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 9:00 pm (1.0 ft)
Next high tide : in 3h 23m at 2:32 pm (4.1 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:27 am
Moon phase : First Quarter (52% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Dec 2069

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun9:455.010:134.42:48-0.43:56-0.26:514:13Waning Gibbous1Sun
2Mon10:394.611:094.23:38-0.24:420.06:524:13Waning Gibbous2Mon
3Tue11:354.24:290.15:320.26:534:13Third Quarter3Tue
4Wed12:064.012:303.95:250.46:400.46:544:13Third Quarter4Wed
5Thu1:023.91:243.56:410.77:540.56:554:12Third Quarter5Thu
6Fri1:583.72:183.38:340.78:440.56:564:12Third Quarter6Fri
7Sat2:543.73:153.19:360.79:210.56:574:12Waning Crescent7Sat
8Sun3:523.64:133.110:190.69:560.46:574:12Waning Crescent8Sun
9Mon4:463.75:053.110:550.510:330.36:584:12Waning Crescent9Mon
10Tue5:333.85:503.211:310.311:120.26:594:12Waning Crescent10Tue
11Wed6:143.96:293.312:080.27:004:13New Moon11Wed
12Thu6:513.97:073.412:470.07:014:13New Moon12Thu
13Fri7:264.07:443.412:310.01:280.07:024:13New Moon13Fri
14Sat8:014.08:213.51:12-0.12:07-0.17:024:13New Moon14Sat
15Sun8:364.08:593.51:53-0.12:43-0.17:034:13New Moon15Sun
16Mon9:153.99:413.42:32-0.13:16-0.17:044:14Waxing Crescent16Mon
17Tue9:563.810:253.43:110.03:49-0.17:044:14Waxing Crescent17Tue
18Wed10:423.711:143.53:510.14:240.07:054:14Waxing Crescent18Wed
19Thu11:323.64:350.25:050.07:054:15First Quarter19Thu
20Fri12:053.612:253.55:270.35:550.07:064:15First Quarter20Fri
21Sat12:593.71:213.56:340.46:550.07:064:16First Quarter21Sat
22Sun1:553.92:203.57:590.38:00-0.17:074:16First Quarter22Sun
23Mon2:554.13:243.59:280.29:06-0.27:074:17Waxing Gibbous23Mon
24Tue4:004.34:303.710:370.010:07-0.47:084:17Waxing Gibbous24Tue
25Wed5:044.65:314.011:33-0.211:03-0.57:084:18Waxing Gibbous25Wed
26Thu6:014.96:274.212:26-0.47:084:19Full Moon26Thu
27Fri6:555.17:204.41:19-0.57:094:19Full Moon27Fri
28Sat7:465.18:114.512:50-0.72:09-0.57:094:20Full Moon28Sat
29Sun8:365.09:014.51:43-0.62:54-0.57:094:21Waning Gibbous29Sun
30Mon9:264.79:524.42:34-0.53:32-0.47:094:22Waning Gibbous30Mon
31Tue10:154.410:454.23:22-0.34:07-0.27:094:23Waning Gibbous31Tue
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 5:46 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 52% 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 (52% 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