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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 09m at 9:08 pm (0.7 ft)
Next high tide (tomorrow) : 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 - Aug 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:058.27:299.61:050.61:160.95:348:03Waning Crescent1Wed
2Thu8:048.28:279.92:040.32:140.85:358:02Waning Crescent2Thu
3Fri9:038.49:2510.23:020.03:130.55:368:01Waning Crescent3Fri
4Sat10:018.810:2310.64:00-0.34:110.25:388:00Waning Crescent4Sat
5Sun10:579.211:1810.84:55-0.75:07-0.25:397:59New Moon5Sun
6Mon11:519.65:47-1.06:02-0.65:407:57New Moon6Mon
7Tue12:1210.912:4210.06:38-1.26:56-0.85:417:56New Moon7Tue
8Wed1:0410.91:3310.37:27-1.27:49-0.95:427:55Waxing Crescent8Wed
9Thu1:5610.72:2310.48:16-1.18:42-0.95:437:53Waxing Crescent9Thu
10Fri2:4710.33:1410.49:06-0.89:35-0.75:447:52Waxing Crescent10Fri
11Sat3:409.84:0510.29:56-0.410:29-0.45:457:51First Quarter11Sat
12Sun4:329.34:589.910:470.011:240.05:467:49First Quarter12Sun
13Mon5:278.75:529.611:410.55:477:48First Quarter13Mon
14Tue6:248.36:499.312:210.412:360.95:487:46First Quarter14Tue
15Wed7:237.97:469.01:190.61:331.25:497:45Waxing Gibbous15Wed
16Thu8:207.88:418.92:170.82:281.35:507:43Waxing Gibbous16Thu
17Fri9:157.79:338.93:110.93:211.45:517:42Waxing Gibbous17Fri
18Sat10:067.810:228.94:020.94:111.35:527:40Waxing Gibbous18Sat
19Sun10:517.911:069.04:490.84:581.25:547:39Full Moon19Sun
20Mon11:338.111:479.05:320.75:411.15:557:37Full Moon20Mon
21Tue12:118.36:110.66:220.95:567:36Full Moon21Tue
22Wed12:269.112:488.66:490.67:020.75:577:34Full Moon22Wed
23Thu1:059.11:268.87:260.57:420.65:587:32Waning Gibbous23Thu
24Fri1:449.12:059.18:030.58:230.55:597:31Waning Gibbous24Fri
25Sat2:259.02:469.28:410.69:060.46:007:29Waning Gibbous25Sat
26Sun3:098.93:299.49:220.69:530.46:017:28Waning Gibbous26Sun
27Mon3:568.74:179.510:060.710:430.46:027:26Third Quarter27Mon
28Tue4:468.55:089.510:560.811:390.46:037:24Third Quarter28Tue
29Wed5:418.46:059.611:510.96:047:23Third Quarter29Wed
30Thu6:418.37:059.712:390.412:520.96:057:21Third Quarter30Thu
31Fri7:428.48:079.91:400.21:550.76:067:19Waning Crescent31Fri
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 12:10 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