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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 10:37 am (-0.4 ft)
Next high tide : in 1h 48m at 4:10 am (10.0 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:04 am
Moon phase : First Quarter (37% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 2037

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:3810.611:089.74:28-0.55:04-1.26:175:32Full Moon1Sun
2Mon11:3010.811:5910.25:22-0.95:54-1.46:165:34Full Moon2Mon
3Tue12:2210.86:14-1.26:43-1.46:145:35Waning Gibbous3Tue
4Wed12:4910.41:1310.67:06-1.47:32-1.36:125:36Waning Gibbous4Wed
5Thu1:3910.52:0510.27:59-1.38:22-1.06:115:37Waning Gibbous5Thu
6Fri2:3010.42:589.78:53-1.19:14-0.66:095:39Waning Gibbous6Fri
7Sat3:2210.23:539.19:48-0.710:07-0.16:075:40Third Quarter7Sat
8Sun5:169.85:508.611:45-0.37:066:41Third Quarter8Sun
9Mon6:139.46:498.212:030.412:440.17:046:42Third Quarter9Mon
10Tue7:129.17:507.91:010.81:430.47:026:43Third Quarter10Tue
11Wed8:128.98:497.81:591.02:420.67:006:45Waning Crescent11Wed
12Thu9:088.79:437.82:561.13:360.66:596:46Waning Crescent12Thu
13Fri10:018.710:327.93:501.14:270.66:576:47Waning Crescent13Fri
14Sat10:498.711:168.04:391.05:120.66:556:48Waning Crescent14Sat
15Sun11:318.811:558.25:240.95:530.56:536:49New Moon15Sun
16Mon12:118.86:060.86:310.56:526:51New Moon16Mon
17Tue12:328.412:498.96:460.67:080.56:506:52New Moon17Tue
18Wed1:088.61:278.87:250.57:450.56:486:53New Moon18Wed
19Thu1:458.82:068.88:040.48:220.66:466:54Waxing Crescent19Thu
20Fri2:249.02:478.78:450.39:010.76:456:55Waxing Crescent20Fri
21Sat3:049.13:318.69:280.39:420.86:436:56Waxing Crescent21Sat
22Sun3:489.24:188.410:140.310:270.96:416:58Waxing Crescent22Sun
23Mon4:369.25:098.211:040.311:171.16:396:59First Quarter23Mon
24Tue5:289.26:048.112:000.46:387:00First Quarter24Tue
25Wed6:259.37:048.212:141.11:000.36:367:01First Quarter25Wed
26Thu7:269.48:048.41:151.02:000.16:347:02Waxing Gibbous26Thu
27Fri8:279.69:048.72:170.72:59-0.16:327:03Waxing Gibbous27Fri
28Sat9:279.910:019.23:180.33:56-0.46:317:04Waxing Gibbous28Sat
29Sun10:2410.210:559.74:16-0.24:50-0.76:297:06Waxing Gibbous29Sun
30Mon11:2010.411:4710.25:12-0.75:41-1.06:277:07Full Moon30Mon
31Tue12:1310.56:05-1.16:30-1.16:257:08Full Moon31Tue
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 7:23 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 transitional phase. Tonight's moon is 37% 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 First Quarter (37% 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