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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 44m at 9:34 pm (1.3 ft)
Next high tide (tomorrow) : 3:38 am (9.1 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:539.32:248.38:240.48:321.35:078:14Waxing Crescent1Thu
2Fri2:359.33:078.39:060.49:161.45:078:14Waxing Crescent2Fri
3Sat3:199.23:528.49:490.510:021.45:068:15Waxing Crescent3Sat
4Sun4:059.14:388.510:330.610:511.35:068:16First Quarter4Sun
5Mon4:548.95:288.611:210.611:441.25:068:17First Quarter5Mon
6Tue5:468.86:198.912:110.75:058:17First Quarter6Tue
7Wed6:418.77:129.212:401.01:030.75:058:18First Quarter7Wed
8Thu7:388.78:069.61:370.71:560.65:058:19Waxing Gibbous8Thu
9Fri8:348.88:5910.02:340.32:490.55:048:19Waxing Gibbous9Fri
10Sat9:318.99:5210.53:29-0.13:420.35:048:20Waxing Gibbous10Sat
11Sun10:269.210:4610.94:24-0.64:360.05:048:20Full Moon11Sun
12Mon11:219.411:3911.25:18-1.05:29-0.25:048:21Full Moon12Mon
13Tue12:149.66:11-1.36:22-0.45:048:21Full Moon13Tue
14Wed12:3111.31:079.87:03-1.57:15-0.55:048:22Full Moon14Wed
15Thu1:2411.32:009.97:55-1.58:09-0.55:048:22Waning Gibbous15Thu
16Fri2:1811.12:539.98:47-1.39:05-0.45:048:23Waning Gibbous16Fri
17Sat3:1210.83:479.89:40-1.110:01-0.25:048:23Waning Gibbous17Sat
18Sun4:0710.34:429.710:33-0.710:580.05:048:23Third Quarter18Sun
19Mon5:039.75:389.611:27-0.311:570.35:048:24Third Quarter19Mon
20Tue6:019.26:349.512:210.15:048:24Third Quarter20Tue
21Wed6:598.87:309.412:560.51:160.45:048:24Third Quarter21Wed
22Thu7:578.48:239.31:540.62:100.75:058:24Waning Crescent22Thu
23Fri8:538.29:149.22:490.63:011.05:058:25Waning Crescent23Fri
24Sat9:458.010:029.23:410.63:511.15:058:25Waning Crescent24Sat
25Sun10:348.010:479.24:300.64:381.25:068:25Waning Crescent25Sun
26Mon11:188.011:299.25:160.65:221.35:068:25New Moon26Mon
27Tue11:598.05:580.56:041.35:068:25New Moon27Tue
28Wed12:099.312:398.16:390.56:451.35:078:25New Moon28Wed
29Thu12:489.31:188.27:180.47:251.25:078:25New Moon29Thu
30Fri1:289.31:588.37:580.48:061.25:088:25Waxing Crescent30Fri
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 12:36 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 81% 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 (81% 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