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

TIDE TIMES for Sunday, June 28, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 1h 54m at 5:21 pm (1.6 ft)
Next high tide : 11:29 pm (9.1 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:07 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 2003

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:4610.410:258.63:340.24:20-0.97:134:19New Moon1Wed
2Thu10:3910.411:168.54:270.25:12-0.97:134:20New Moon2Thu
3Fri11:2910.35:180.26:01-0.87:134:21New Moon3Fri
4Sat12:058.512:1710.16:080.36:49-0.77:134:22Waxing Crescent4Sat
5Sun12:528.51:049.86:560.47:35-0.47:134:23Waxing Crescent5Sun
6Mon1:398.41:519.57:450.68:21-0.27:134:24Waxing Crescent6Mon
7Tue2:258.32:399.18:340.89:060.17:134:25Waxing Crescent7Tue
8Wed3:128.33:278.79:240.99:520.47:134:26First Quarter8Wed
9Thu3:598.34:168.310:151.110:400.77:124:27First Quarter9Thu
10Fri4:478.35:097.911:081.111:291.07:124:28First Quarter10Fri
11Sat5:388.36:037.612:031.17:124:29First Quarter11Sat
12Sun6:298.36:587.412:201.212:581.17:114:30Waxing Gibbous12Sun
13Mon7:198.47:517.31:101.41:510.97:114:32Waxing Gibbous13Mon
14Tue8:098.68:437.32:001.52:430.87:114:33Waxing Gibbous14Tue
15Wed8:578.89:327.42:491.43:320.57:104:34Waxing Gibbous15Wed
16Thu9:439.010:187.63:361.34:180.37:104:35Full Moon16Thu
17Fri10:289.311:027.84:211.25:020.07:094:36Full Moon17Fri
18Sat11:129.611:468.15:050.95:45-0.27:094:37Full Moon18Sat
19Sun11:569.85:490.76:28-0.47:084:39Full Moon19Sun
20Mon12:298.412:4210.06:340.47:12-0.67:074:40Waning Gibbous20Mon
21Tue1:158.71:3010.07:220.27:57-0.77:074:41Waning Gibbous21Tue
22Wed2:029.12:209.98:130.08:45-0.77:064:42Waning Gibbous22Wed
23Thu2:529.43:129.69:07-0.19:34-0.57:054:44Third Quarter23Thu
24Fri3:449.64:089.210:04-0.210:27-0.37:044:45Third Quarter24Fri
25Sat4:389.75:078.811:04-0.211:230.07:044:46Third Quarter25Sat
26Sun5:369.86:108.512:07-0.27:034:48Third Quarter26Sun
27Mon6:369.87:138.212:220.21:09-0.37:024:49Waning Crescent27Mon
28Tue7:369.88:158.11:220.42:11-0.37:014:50Waning Crescent28Tue
29Wed8:359.99:158.12:210.53:10-0.47:004:51Waning Crescent29Wed
30Thu9:329.910:118.23:180.54:06-0.46:594:53New Moon30Thu
31Fri10:259.811:018.24:130.44:57-0.56:584:54New Moon31Fri
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 8:25 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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