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 : 6:21 pm (0.6 ft)
Next high tide : in 3h 06m at 12:43 pm (4.1 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 - May 2094

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:153.89:334.52:59-0.22:48-0.25:387:41Full Moon1Sat
2Sun9:593.810:184.53:39-0.23:28-0.25:377:42Waning Gibbous2Sun
3Mon10:473.811:064.44:19-0.24:09-0.15:367:44Waning Gibbous3Mon
4Tue11:393.75:01-0.14:540.05:347:45Waning Gibbous4Tue
5Wed12:004.312:353.65:480.15:440.25:337:46Waning Gibbous5Wed
6Thu12:594.21:343.76:460.36:450.45:327:47Third Quarter6Thu
7Fri1:594.12:333.88:080.48:060.55:317:48Third Quarter7Fri
8Sat3:004.03:353.99:420.49:530.45:307:49Third Quarter8Sat
9Sun4:044.04:394.210:420.211:140.35:297:50Waning Crescent9Sun
10Mon5:094.15:414.511:270.15:287:51Waning Crescent10Mon
11Tue6:094.26:374.812:110.112:050.05:267:52Waning Crescent11Tue
12Wed7:024.37:285.01:00-0.112:41-0.15:257:53Waning Crescent12Wed
13Thu7:524.38:155.11:47-0.11:19-0.25:247:54New Moon13Thu
14Fri8:394.39:015.02:32-0.11:58-0.15:237:55New Moon14Fri
15Sat9:254.29:454.83:14-0.12:40-0.15:227:56New Moon15Sat
16Sun10:114.010:304.53:520.03:220.05:217:57Waxing Crescent16Sun
17Mon10:573.811:164.24:270.14:050.25:217:58Waxing Crescent17Mon
18Tue11:453.65:040.34:480.45:207:59Waxing Crescent18Tue
19Wed12:033.812:353.45:430.55:330.65:198:00Waxing Crescent19Wed
20Thu12:513.51:243.36:300.76:240.75:188:01First Quarter20Thu
21Fri1:383.32:133.27:290.87:270.95:178:02First Quarter21Fri
22Sat2:243.13:003.28:390.88:440.95:168:03First Quarter22Sat
23Sun3:103.03:503.39:380.79:580.85:168:04First Quarter23Sun
24Mon4:013.04:423.410:240.610:560.65:158:05Waxing Gibbous24Mon
25Tue4:553.15:323.711:030.411:440.45:148:06Waxing Gibbous25Tue
26Wed5:483.26:184.011:400.25:148:06Waxing Gibbous26Wed
27Thu6:353.47:004.312:280.212:180.15:138:07Waxing Gibbous27Thu
28Fri7:213.67:434.51:100.012:56-0.15:128:08Full Moon28Fri
29Sat8:063.88:274.71:53-0.11:37-0.25:128:09Full Moon29Sat
30Sun8:524.09:124.92:39-0.22:21-0.25:118:10Full Moon30Sun
31Mon9:414.010:014.93:24-0.23:08-0.25:118:10Full Moon31Mon
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 3:32 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 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