Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Tuesday, August 4, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide (tomorrow) : 6:24 am (0.2 ft)
Next high tide (tomorrow) : in 2h 17m at 1:07 am (3.6 ft)
Sunset today : 7:57 pm
Sunrise tomorrow : 5:40 am
Moon phase : Third Quarter (66% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Dec 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:533.811:323.53:580.14:370.26:504:14Waning Gibbous1Mon
2Tue11:453.74:450.25:230.26:514:13Third Quarter2Tue
3Wed12:253.612:403.75:420.46:200.26:524:13Third Quarter3Wed
4Thu1:203.81:373.76:530.47:270.26:534:13Third Quarter4Thu
5Fri2:174.02:383.78:180.38:340.06:544:13Third Quarter5Fri
6Sat3:184.33:433.89:380.19:35-0.16:554:13Waning Crescent6Sat
7Sun4:214.64:473.910:41-0.110:30-0.36:564:13Waning Crescent7Sun
8Mon5:204.95:454.211:36-0.311:21-0.56:574:12Waning Crescent8Mon
9Tue6:165.26:404.412:28-0.46:584:12New Moon9Tue
10Wed7:085.37:324.512:11-0.61:21-0.46:594:13New Moon10Wed
11Thu7:595.38:234.51:02-0.62:11-0.46:594:13New Moon11Thu
12Fri8:495.19:134.41:53-0.52:57-0.37:004:13Waxing Crescent12Fri
13Sat9:394.810:054.22:43-0.33:38-0.27:014:13Waxing Crescent13Sat
14Sun10:304.410:584.03:30-0.14:170.07:024:13Waxing Crescent14Sun
15Mon11:224.011:523.84:170.14:560.27:034:13Waxing Crescent15Mon
16Tue12:143.75:060.45:410.37:034:14First Quarter16Tue
17Wed12:453.61:053.46:070.66:330.57:044:14First Quarter17Wed
18Thu1:373.51:553.17:360.87:320.57:054:14First Quarter18Thu
19Fri2:303.32:482.99:010.78:290.57:054:15First Quarter19Fri
20Sat3:263.33:442.99:560.69:210.47:064:15Waxing Gibbous20Sat
21Sun4:213.44:382.910:390.510:080.27:064:15Waxing Gibbous21Sun
22Mon5:103.55:263.011:200.310:520.17:074:16Waxing Gibbous22Mon
23Tue5:523.66:083.211:590.111:340.07:074:16Waxing Gibbous23Tue
24Wed6:293.86:483.412:400.07:084:17Full Moon24Wed
25Thu7:053.97:263.512:15-0.21:20-0.17:084:18Full Moon25Thu
26Fri7:414.08:063.612:57-0.21:58-0.27:084:18Full Moon26Fri
27Sat8:204.18:483.71:39-0.32:33-0.27:094:19Full Moon27Sat
28Sun9:014.19:323.72:20-0.33:06-0.37:094:20Waning Gibbous28Sun
29Mon9:454.010:183.73:02-0.33:40-0.37:094:20Waning Gibbous29Mon
30Tue10:333.911:093.83:44-0.24:16-0.27:094:21Waning Gibbous30Tue
31Wed11:253.84:31-0.14:59-0.27:104:22Third Quarter31Wed
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 3:45 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 transitional phase. Tonight's moon is 66% 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 Third Quarter (66% 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