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

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 9:56 pm (0.5 ft)
Next high tide : in 1h 00m at 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 - Jun 2096

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:028.29:268.82:581.03:151.15:078:15Waxing Gibbous1Fri
2Sat9:538.110:108.93:490.94:011.35:068:16Waxing Gibbous2Sat
3Sun10:408.010:529.04:360.84:451.45:068:16Waxing Gibbous3Sun
4Mon11:238.011:319.15:200.65:261.55:068:17Full Moon4Mon
5Tue12:047.96:020.66:061.55:058:18Full Moon5Tue
6Wed12:109.212:437.96:420.56:451.65:058:18Full Moon6Wed
7Thu12:499.31:227.97:220.47:241.65:058:19Full Moon7Thu
8Fri1:289.32:038.08:020.48:051.65:058:20Waning Gibbous8Fri
9Sat2:109.42:468.08:440.48:481.55:048:20Waning Gibbous9Sat
10Sun2:559.43:328.19:290.49:351.55:048:21Waning Gibbous10Sun
11Mon3:429.44:208.310:150.410:261.45:048:21Waning Gibbous11Mon
12Tue4:339.35:118.511:030.411:211.25:048:22Third Quarter12Tue
13Wed5:279.26:048.811:550.45:048:22Third Quarter13Wed
14Thu6:249.06:599.212:201.012:490.45:048:23Third Quarter14Thu
15Fri7:249.07:549.71:210.61:430.45:048:23Waning Crescent15Fri
16Sat8:238.98:4910.12:200.22:380.35:048:23Waning Crescent16Sat
17Sun9:229.09:4310.53:19-0.23:320.35:048:24Waning Crescent17Sun
18Mon10:199.010:3710.84:16-0.64:260.25:058:24Waning Crescent18Mon
19Tue11:159.111:3111.05:11-0.95:200.15:058:24New Moon19Tue
20Wed12:099.16:05-1.16:120.15:058:24New Moon20Wed
21Thu12:2311.01:019.16:57-1.17:050.15:058:25New Moon21Thu
22Fri1:1510.91:539.07:48-1.07:570.25:058:25Waxing Crescent22Fri
23Sat2:0710.62:449.08:39-0.88:500.45:068:25Waxing Crescent23Sat
24Sun2:5910.33:368.99:30-0.59:440.65:068:25Waxing Crescent24Sun
25Mon3:519.84:278.810:20-0.110:380.85:068:25First Quarter25Mon
26Tue4:449.35:198.711:110.211:341.05:078:25First Quarter26Tue
27Wed5:378.86:128.712:020.65:078:25First Quarter27Wed
28Thu6:338.47:048.712:301.112:530.95:088:25First Quarter28Thu
29Fri7:288.17:558.71:261.21:441.25:088:25Waxing Gibbous29Fri
30Sat8:237.88:448.82:211.12:341.45:098:25Waxing Gibbous30Sat
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 6:47 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