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 2h 22m at 9:31 am (0.4 ft)
Next high tide : 3:38 pm (9.2 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 1955

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:377.610:509.04:360.94:421.45:348:04Waxing Gibbous1Mon
2Tue11:217.811:339.25:210.75:271.35:358:03Full Moon2Tue
3Wed12:028.16:020.66:091.15:368:02Full Moon3Wed
4Thu12:149.312:418.46:420.46:500.95:378:01Full Moon4Thu
5Fri12:549.41:208.77:200.37:320.75:387:59Full Moon5Fri
6Sat1:359.42:019.07:590.28:150.55:397:58Waning Gibbous6Sat
7Sun2:189.42:439.38:390.29:000.35:407:57Waning Gibbous7Sun
8Mon3:049.33:299.69:210.29:490.25:417:56Waning Gibbous8Mon
9Tue3:539.14:179.810:070.310:420.15:427:54Third Quarter9Tue
10Wed4:458.95:099.910:570.411:390.15:437:53Third Quarter10Wed
11Thu5:418.66:069.911:520.55:447:52Third Quarter11Thu
12Fri6:418.57:0610.012:400.112:520.65:457:50Third Quarter12Fri
13Sat7:448.48:0810.11:420.01:540.65:467:49Waning Crescent13Sat
14Sun8:468.59:1010.22:44-0.12:560.55:477:47Waning Crescent14Sun
15Mon9:478.710:0910.33:43-0.33:560.25:487:46Waning Crescent15Mon
16Tue10:449.011:0510.44:40-0.54:540.05:507:44New Moon16Tue
17Wed11:389.311:5810.45:33-0.75:48-0.25:517:43New Moon17Wed
18Thu12:279.66:22-0.76:39-0.45:527:41New Moon18Thu
19Fri12:4810.31:149.77:08-0.67:28-0.45:537:40Waxing Crescent19Fri
20Sat1:3510.01:599.87:54-0.48:17-0.35:547:38Waxing Crescent20Sat
21Sun2:219.62:449.78:38-0.19:04-0.15:557:37Waxing Crescent21Sun
22Mon3:089.23:299.59:230.29:520.25:567:35Waxing Crescent22Mon
23Tue3:558.84:159.310:090.610:420.55:577:34First Quarter23Tue
24Wed4:438.45:049.110:561.011:330.85:587:32First Quarter24Wed
25Thu5:348.05:558.811:471.35:597:30First Quarter25Thu
26Fri6:287.76:508.712:281.012:411.66:007:29First Quarter26Fri
27Sat7:247.57:468.61:241.21:361.76:017:27Waxing Gibbous27Sat
28Sun8:207.58:408.62:191.22:301.66:027:26Waxing Gibbous28Sun
29Mon9:137.69:318.83:121.13:231.56:047:24Waxing Gibbous29Mon
30Tue10:027.810:198.94:021.04:121.36:057:22Waxing Gibbous30Tue
31Wed10:488.111:049.14:470.84:581.06:067:21Full Moon31Wed
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 12:34 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 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