Nearby Harbors
41.6567’ N, 70.8133’ W

Mattapoisett Harbor, MA

65°
H -°
L 60°
SW
2mph
High tide
12:46 am
Photo Credits

Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Thursday, September 17, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 5:47 am (0.7 ft)
Next high tide : in 18m at 12:46 am (3.2 ft)
Sunset today : 6:49 pm
Sunrise tomorrow : 6:25 am
Moon phase : First Quarter (39% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

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Mattapoisett Harbor, MA Tides - Jan 1870

Print this Tide Chart
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:124.87:344.012:11-0.31:31-0.27:144:27New Moon1Sat
2Sun8:004.88:214.012:58-0.32:13-0.27:144:28New Moon2Sun
3Mon8:464.69:083.91:45-0.32:49-0.27:144:29New Moon3Mon
4Tue9:324.39:543.72:30-0.23:22-0.17:144:30Waxing Crescent4Tue
5Wed10:174.010:413.53:14-0.13:560.07:144:31Waxing Crescent5Wed
6Thu11:023.611:293.43:570.14:320.17:144:32Waxing Crescent6Thu
7Fri11:483.34:410.35:110.27:144:33Waxing Crescent7Fri
8Sat12:163.212:323.05:320.55:570.37:144:34First Quarter8Sat
9Sun1:023.11:162.86:350.66:490.47:144:35First Quarter9Sun
10Mon1:473.02:012.77:550.77:460.47:134:36First Quarter10Mon
11Tue2:343.02:522.69:110.68:430.37:134:37First Quarter11Tue
12Wed3:273.13:502.610:090.59:360.27:134:38Waxing Gibbous12Wed
13Thu4:233.24:462.810:570.310:250.07:124:39Waxing Gibbous13Thu
14Fri5:133.55:373.011:400.111:10-0.27:124:40Waxing Gibbous14Fri
15Sat5:593.86:233.312:22-0.17:124:42Waxing Gibbous15Sat
16Sun6:424.07:073.61:04-0.37:114:43Full Moon16Sun
17Mon7:264.37:533.812:40-0.51:46-0.47:114:44Full Moon17Mon
18Tue8:114.48:393.91:27-0.62:27-0.57:104:45Full Moon18Tue
19Wed8:584.59:274.02:14-0.63:05-0.57:094:46Waning Gibbous19Wed
20Thu9:464.410:184.13:01-0.63:43-0.57:094:47Waning Gibbous20Thu
21Fri10:384.311:114.13:49-0.54:24-0.47:084:49Waning Gibbous21Fri
22Sat11:324.04:40-0.35:08-0.37:074:50Waning Gibbous22Sat
23Sun12:074.112:283.85:380.06:00-0.27:074:51Third Quarter23Sun
24Mon1:044.11:263.66:560.27:020.07:064:52Third Quarter24Mon
25Tue2:034.12:273.48:510.38:140.17:054:54Third Quarter25Tue
26Wed3:074.03:333.310:110.29:270.17:044:55Waning Crescent26Wed
27Thu4:134.14:393.411:100.110:280.07:044:56Waning Crescent27Thu
28Fri5:164.25:393.511:590.011:18-0.17:034:57Waning Crescent28Fri
29Sat6:104.36:303.712:43-0.17:024:59Waning Crescent29Sat
30Sun6:594.47:183.812:04-0.21:22-0.17:015:00New Moon30Sun
31Mon7:444.48:033.912:48-0.21:54-0.27:005:01New Moon31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

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Common Questions About Mattapoisett Harbor, MA Tides

Collapse All
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 39% 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 First Quarter (39% 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

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