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

TIDE TIMES for Friday, July 3, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 59m at 8:48 pm (1.4 ft)
Next high tide (tomorrow) : 2:53 am (9.2 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (88% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Sep 2055

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:318.48:549.52:240.12:400.76:087:18Waxing Gibbous1Wed
2Thu9:308.49:509.43:230.23:370.86:097:16Waxing Gibbous2Thu
3Fri10:248.410:419.44:170.34:300.86:107:14Waxing Gibbous3Fri
4Sat11:128.411:279.35:060.35:180.86:117:12Full Moon4Sat
5Sun11:548.55:500.36:020.76:127:11Full Moon5Sun
6Mon12:099.212:328.66:300.46:430.76:137:09Full Moon6Mon
7Tue12:489.11:098.77:080.57:230.76:147:07Full Moon7Tue
8Wed1:269.01:468.87:450.68:030.66:157:05Waning Gibbous8Wed
9Thu2:048.92:248.98:230.78:440.76:167:04Waning Gibbous9Thu
10Fri2:458.83:048.99:020.99:260.76:177:02Waning Gibbous10Fri
11Sat3:288.63:478.99:431.010:110.86:187:00Waning Gibbous11Sat
12Sun4:138.44:328.910:271.211:000.96:196:58Third Quarter12Sun
13Mon5:028.25:228.811:141.411:520.96:216:57Third Quarter13Mon
14Tue5:548.06:158.912:071.56:226:55Third Quarter14Tue
15Wed6:507.97:119.012:480.91:031.56:236:53Third Quarter15Wed
16Thu7:488.08:089.21:460.82:001.36:246:51Waning Crescent16Thu
17Fri8:448.39:059.52:420.52:571.06:256:49Waning Crescent17Fri
18Sat9:398.710:009.93:360.23:520.56:266:48Waning Crescent18Sat
19Sun10:319.310:5310.34:28-0.24:46-0.16:276:46New Moon19Sun
20Mon11:229.811:4510.65:18-0.65:38-0.66:286:44New Moon20Mon
21Tue12:1210.46:07-0.96:30-1.06:296:42New Moon21Tue
22Wed12:3710.71:0110.86:55-1.17:21-1.36:306:40Waxing Crescent22Wed
23Thu1:2810.71:5011.07:44-1.08:13-1.46:316:39Waxing Crescent23Thu
24Fri2:1910.42:4111.08:34-0.99:07-1.36:326:37Waxing Crescent24Fri
25Sat3:1310.13:3410.89:26-0.610:02-1.06:336:35Waxing Crescent25Sat
26Sun4:079.64:2910.510:20-0.210:59-0.66:356:33First Quarter26Sun
27Mon5:049.25:2710.111:170.311:58-0.26:366:31First Quarter27Mon
28Tue6:048.86:279.612:170.66:376:30First Quarter28Tue
29Wed7:078.57:299.312:580.11:180.96:386:28First Quarter29Wed
30Thu8:088.48:299.11:590.32:181.06:396:26Waxing Gibbous30Thu
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 11:50 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 88% 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 (88% 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