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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 55m at 9:56 pm (0.5 ft)
Next high tide (tomorrow) : 4:00 am (8.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Aug 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:319.71:589.07:54-0.18:100.45:348:04Waxing Crescent1Sun
2Mon2:149.42:419.08:360.18:550.55:358:03Waxing Crescent2Mon
3Tue2:589.13:239.09:180.49:410.75:368:02Waxing Crescent3Tue
4Wed3:438.74:068.910:010.710:280.85:378:00Waxing Crescent4Wed
5Thu4:298.44:528.810:451.011:181.05:387:59First Quarter5Thu
6Fri5:178.05:408.711:321.35:397:58First Quarter6Fri
7Sat6:097.76:328.612:101.112:231.55:407:57First Quarter7Sat
8Sun7:047.57:268.61:051.21:161.75:417:55First Quarter8Sun
9Mon8:007.48:208.72:011.22:101.75:427:54Waxing Gibbous9Mon
10Tue8:547.49:128.92:551.13:021.75:437:53Waxing Gibbous10Tue
11Wed9:467.610:029.13:470.93:531.55:447:51Waxing Gibbous11Wed
12Thu10:357.910:509.44:360.74:421.25:457:50Waxing Gibbous12Thu
13Fri11:218.311:369.75:210.45:290.85:477:48Full Moon13Fri
14Sat12:058.76:040.16:150.45:487:47Full Moon14Sat
15Sun12:219.912:489.26:46-0.27:010.05:497:46Full Moon15Sun
16Mon1:0710.01:339.77:29-0.47:48-0.35:507:44Waning Gibbous16Mon
17Tue1:5410.02:1910.18:13-0.58:38-0.55:517:43Waning Gibbous17Tue
18Wed2:439.93:0710.38:59-0.49:31-0.65:527:41Waning Gibbous18Wed
19Thu3:359.63:5910.49:49-0.310:26-0.65:537:40Third Quarter19Thu
20Fri4:299.34:5310.410:410.011:24-0.45:547:38Third Quarter20Fri
21Sat5:278.95:5210.211:390.35:557:36Third Quarter21Sat
22Sun6:298.56:5410.012:26-0.212:400.55:567:35Third Quarter22Sun
23Mon7:338.37:589.91:290.01:430.75:577:33Waning Crescent23Mon
24Tue8:378.39:009.82:320.12:450.75:587:32Waning Crescent24Tue
25Wed9:388.49:599.83:320.13:450.65:597:30Waning Crescent25Wed
26Thu10:348.510:539.74:280.04:410.56:017:28New Moon26Thu
27Fri11:248.711:429.65:180.05:320.46:027:27New Moon27Fri
28Sat12:098.96:040.16:190.46:037:25New Moon28Sat
29Sun12:269.412:499.06:450.27:020.36:047:23New Moon29Sun
30Mon1:089.31:289.07:250.37:440.46:057:22Waxing Crescent30Mon
31Tue1:489.02:069.18:040.58:260.46:067:20Waxing Crescent31Tue
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 12:58 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 transitional phase. Tonight's moon is 75% 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 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 (75% illuminated). This places Plum Island Sound, South End, 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