Tides Today & Tomorrow in Plum Island Sound, South End, MA

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 9:31 am (0.4 ft)
Next high tide (tomorrow) : in 3h 15m at 3:12 am (9.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 2095

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue6:428.87:207.612:311.41:180.66:175:32Waning Crescent1Tue
2Wed7:399.18:177.91:281.22:150.36:165:34Waning Crescent2Wed
3Thu8:369.59:128.32:250.93:10-0.16:145:35Waning Crescent3Thu
4Fri9:319.910:058.83:210.44:03-0.56:125:36Waning Crescent4Fri
5Sat10:2510.310:569.44:15-0.14:52-0.96:115:37New Moon5Sat
6Sun11:1710.611:459.95:08-0.65:41-1.26:095:38New Moon6Sun
7Mon12:0810.66:00-1.06:28-1.36:075:40New Moon7Mon
8Tue12:3410.312:5910.56:52-1.37:17-1.26:065:41Waxing Crescent8Tue
9Wed1:2310.61:5110.27:44-1.38:06-1.06:045:42Waxing Crescent9Wed
10Thu2:1410.62:449.78:38-1.28:57-0.66:025:43Waxing Crescent10Thu
11Fri3:0610.43:389.29:34-0.99:51-0.16:005:44First Quarter11Fri
12Sat4:0110.14:368.710:31-0.510:470.45:595:46First Quarter12Sat
13Sun5:589.76:378.212:31-0.16:576:47First Quarter13Sun
14Mon6:599.37:397.912:470.81:330.36:556:48First Quarter14Mon
15Tue8:019.08:417.81:481.02:330.56:536:49Waxing Gibbous15Tue
16Wed9:018.89:387.82:471.23:310.66:526:50Waxing Gibbous16Wed
17Thu9:568.810:307.93:441.14:230.66:506:52Waxing Gibbous17Thu
18Fri10:468.811:158.04:351.15:100.66:486:53Waxing Gibbous18Fri
19Sat11:308.811:548.25:220.95:510.66:476:54Full Moon19Sat
20Sun12:108.86:040.86:290.66:456:55Full Moon20Sun
21Mon12:308.412:488.76:440.77:050.66:436:56Full Moon21Mon
22Tue1:068.61:258.77:220.67:410.76:416:57Full Moon22Tue
23Wed1:418.72:038.68:010.58:170.86:396:59Waning Gibbous23Wed
24Thu2:188.92:438.58:410.48:550.96:387:00Waning Gibbous24Thu
25Fri2:589.03:258.39:220.49:341.16:367:01Waning Gibbous25Fri
26Sat3:409.04:118.110:070.510:171.36:347:02Waning Gibbous26Sat
27Sun4:269.05:007.910:560.611:061.46:327:03Third Quarter27Sun
28Mon5:178.95:547.811:500.76:317:04Third Quarter28Mon
29Tue6:129.06:527.812:011.512:480.66:297:05Third Quarter29Tue
30Wed7:129.17:528.01:011.41:480.56:277:07Third Quarter30Wed
31Thu8:129.38:518.32:021.22:470.26:257:08Waning Crescent31Thu
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

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What time does the tide turn (slack tide) in Plum Island Sound, South End, MA today?

Slack tide in Plum Island Sound, South End, MA is approximately 6:21 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 Plum Island Sound, South End, MA?

Plum Island Sound, South End, MA is currently in a spring phase. Tonight's moon is 84% 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 Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide predictions for Plum Island Sound, South End, 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 Plum Island Sound, South End, MA?

Tide data for Plum Island Sound, South End, MA is sourced from NOAA Station #8441241. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8441241.

What is the moon phase in Plum Island Sound, South End, MA tonight?

Tonight the moon over Plum Island Sound, South End, MA is Waning Gibbous (84% illuminated). This places Plum Island Sound, South End, 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