Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Sunday, August 16, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 5:09 am (0.2 ft)
Next high tide : in 1h 48m at 11:44 pm (4.0 ft)
Sunset today : 7:41 pm
Sunrise tomorrow : 5:53 am
Moon phase : Waxing Crescent (18% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Jun 1937

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:143.61:483.66:530.47:200.75:118:10Third Quarter1Tue
2Wed2:053.62:403.87:480.38:360.65:108:11Third Quarter2Wed
3Thu3:003.63:354.18:480.29:550.55:108:12Third Quarter3Thu
4Fri4:013.64:364.49:470.111:040.25:098:12Waning Crescent4Fri
5Sat5:063.75:394.710:45-0.15:098:13Waning Crescent5Sat
6Sun6:094.06:385.112:030.011:40 AM-0.35:098:14Waning Crescent6Sun
7Mon7:074.27:345.312:58-0.212:33-0.45:088:14New Moon7Mon
8Tue8:024.58:275.41:54-0.31:27-0.45:088:15New Moon8Tue
9Wed8:554.69:205.42:52-0.32:23-0.45:088:16New Moon9Wed
10Thu9:484.710:135.23:47-0.33:19-0.35:088:16Waxing Crescent10Thu
11Fri10:424.711:064.94:36-0.24:13-0.15:088:17Waxing Crescent11Fri
12Sat11:364.65:21-0.15:060.15:088:17Waxing Crescent12Sat
13Sun12:004.612:324.46:050.16:000.45:088:18Waxing Crescent13Sun
14Mon12:544.21:274.36:510.37:040.75:078:18First Quarter14Mon
15Tue1:473.92:214.27:430.58:370.85:078:19First Quarter15Tue
16Wed2:383.53:144.08:350.69:560.95:088:19First Quarter16Wed
17Thu3:313.34:093.99:220.610:480.85:088:19First Quarter17Thu
18Fri4:283.15:063.910:070.611:290.85:088:20Waxing Gibbous18Fri
19Sat5:263.15:593.910:510.65:088:20Waxing Gibbous19Sat
20Sun6:183.26:454.012:060.611:35 AM0.55:088:20Waxing Gibbous20Sun
21Mon7:033.37:264.012:440.512:180.45:088:20Waxing Gibbous21Mon
22Tue7:443.48:034.11:240.41:010.35:088:21Full Moon22Tue
23Wed8:233.58:394.12:060.31:440.35:098:21Full Moon23Wed
24Thu9:013.69:154.12:480.22:280.25:098:21Full Moon24Thu
25Fri9:393.69:524.13:270.23:110.25:098:21Full Moon25Fri
26Sat10:193.710:314.14:010.13:510.35:108:21Waning Gibbous26Sat
27Sun11:003.711:144.04:320.14:310.35:108:21Waning Gibbous27Sun
28Mon11:453.85:040.15:120.45:108:21Waning Gibbous28Mon
29Tue12:003.912:333.95:390.15:590.55:118:21Waning Gibbous29Tue
30Wed12:503.81:234.06:210.16:560.65:118:21Third Quarter30Wed
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 2:26 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 spring phase. Tonight's moon is 18% 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 maximum.

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 Crescent (18% illuminated). This places Mattapoisett Harbor, MA in a spring tide cycle, so tidal ranges are near their weekly maximum 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