Tides Today & Tomorrow in Mattapoisett Harbor, MA

TIDE TIMES for Friday, July 17, 2026
The tide is currently falling in Mattapoisett Harbor, MA.
Next low tide : in 3h 30m at 4:49 am (-0.1 ft)
Next high tide : 11:03 am (4.7 ft)
Sunset today : 8:14 pm
Sunrise tomorrow : 5:23 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8447531
Common Questions About Tides

Mattapoisett Harbor, MA Tides - Oct 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat3:333.64:024.29:070.511:060.56:396:26Waning Crescent1Sat
2Sun4:403.95:114.410:300.311:540.36:406:24Waning Crescent2Sun
3Mon5:444.36:134.711:380.16:416:22Waning Crescent3Mon
4Tue6:414.77:074.912:350.012:35-0.16:426:21Waning Crescent4Tue
5Wed7:335.17:575.01:13-0.11:28-0.36:436:19New Moon5Wed
6Thu8:225.48:454.91:52-0.32:20-0.36:456:17New Moon6Thu
7Fri9:105.59:334.82:31-0.33:10-0.36:466:16New Moon7Fri
8Sat9:585.310:214.53:09-0.23:56-0.16:476:14Waxing Crescent8Sat
9Sun10:465.111:104.23:48-0.14:390.16:486:12Waxing Crescent9Sun
10Mon11:364.74:270.15:200.46:496:11Waxing Crescent10Mon
11Tue12:013.812:294.35:070.46:060.76:506:09Waxing Crescent11Tue
12Wed12:553.51:243.95:520.77:050.96:516:08First Quarter12Wed
13Thu1:503.32:203.66:450.98:571.06:526:06First Quarter13Thu
14Fri2:463.23:173.47:581.110:101.06:536:04First Quarter14Fri
15Sat3:443.14:173.39:341.010:540.96:546:03First Quarter15Sat
16Sun4:443.25:153.410:450.911:280.76:566:01Waxing Gibbous16Sun
17Mon5:383.46:023.511:330.76:576:00Waxing Gibbous17Mon
18Tue6:233.66:413.612:000.512:140.56:585:58Waxing Gibbous18Tue
19Wed7:013.97:173.812:310.312:540.36:595:57Waxing Gibbous19Wed
20Thu7:354.17:513.91:020.11:330.27:005:55Full Moon20Thu
21Fri8:104.38:284.01:340.02:120.17:015:54Full Moon21Fri
22Sat8:454.49:064.02:07-0.12:510.07:025:52Full Moon22Sat
23Sun9:234.59:483.92:42-0.13:290.07:045:51Full Moon23Sun
24Mon10:044.510:333.83:18-0.14:070.17:055:49Waning Gibbous24Mon
25Tue10:494.411:233.73:570.04:460.27:065:48Waning Gibbous25Tue
26Wed11:414.34:380.15:300.47:075:46Waning Gibbous26Wed
27Thu12:183.612:384.25:250.26:250.57:085:45Third Quarter27Thu
28Fri1:173.61:394.16:210.47:510.77:105:44Third Quarter28Fri
29Sat2:173.62:424.17:330.59:520.67:115:42Third Quarter29Sat
30Sun2:193.82:464.18:060.59:500.46:124:41Third Quarter30Sun
31Mon3:244.13:524.29:380.410:330.26:134:40Waning Crescent31Mon
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 7:56 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 14% 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 (14% 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