Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Mattapoisett Harbor, MA.
Next low tide : 4:12 pm (0.3 ft)
Next high tide : in 6h 02m at 10:29 am (3.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - May 1966

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:394.16:104.611:540.05:397:40Waxing Gibbous1Sun
2Mon6:374.27:035.012:23-0.112:31-0.25:387:41Waxing Gibbous2Mon
3Tue7:284.37:535.21:15-0.31:09-0.35:377:42Full Moon3Tue
4Wed8:174.38:405.32:04-0.31:48-0.35:367:43Full Moon4Wed
5Thu9:054.39:275.12:52-0.32:29-0.35:347:45Full Moon5Thu
6Fri9:524.110:144.93:36-0.23:11-0.15:337:46Waning Gibbous6Fri
7Sat10:403.911:024.54:160.03:540.05:327:47Waning Gibbous7Sat
8Sun11:293.611:524.14:540.24:360.35:317:48Waning Gibbous8Sun
9Mon12:213.45:340.45:210.55:307:49Waning Gibbous9Mon
10Tue12:453.71:143.26:190.66:110.75:287:50Third Quarter10Tue
11Wed1:373.42:063.17:190.87:140.95:277:51Third Quarter11Wed
12Thu2:293.22:583.18:380.98:411.05:267:52Third Quarter12Thu
13Fri3:203.13:523.19:410.810:050.95:257:53Third Quarter13Fri
14Sat4:143.04:463.310:260.711:020.75:247:54Waning Crescent14Sat
15Sun5:073.05:363.511:040.511:470.55:237:55Waning Crescent15Sun
16Mon5:553.16:193.711:400.35:227:56Waning Crescent16Mon
17Tue6:373.36:574.012:290.312:140.25:217:57Waning Crescent17Tue
18Wed7:173.47:344.21:090.212:500.05:207:58New Moon18Wed
19Thu7:573.68:124.41:500.01:270.05:197:59New Moon19Thu
20Fri8:393.78:534.52:310.02:06-0.15:198:00New Moon20Fri
21Sat9:233.79:374.63:13-0.12:48-0.15:188:01New Moon21Sat
22Sun10:103.810:244.53:54-0.13:32-0.15:178:02Waxing Crescent22Sun
23Mon11:003.711:164.44:350.04:180.05:168:03Waxing Crescent23Mon
24Tue11:553.75:190.15:070.15:158:04Waxing Crescent24Tue
25Wed12:124.312:523.86:100.36:020.35:158:04First Quarter25Wed
26Thu1:114.21:503.97:160.47:110.55:148:05First Quarter26Thu
27Fri2:104.12:484.08:420.48:430.55:138:06First Quarter27Fri
28Sat3:094.03:484.29:480.310:180.45:138:07First Quarter28Sat
29Sun4:123.94:504.510:370.211:250.35:128:08Waxing Gibbous29Sun
30Mon5:153.95:494.711:180.15:128:09Waxing Gibbous30Mon
31Tue6:143.96:444.912:190.111:56 AM0.05:118:09Waxing Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8447531)

Common Questions About Mattapoisett Harbor, MA Tides

Show All
What time does the tide turn (slack tide) in Mattapoisett Harbor, MA today?

Slack tide in Mattapoisett Harbor, MA is approximately 1:20 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 spring phase. Tonight's moon is 91% 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 Waning Gibbous (91% 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