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

TIDE TIMES for Saturday, June 20, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 52m at 11:00 pm (0.4 ft)
Next high tide (tomorrow) : 5:06 am (9.5 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 - Apr 2038

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:148.910:438.34:030.94:360.56:247:09Waning Crescent1Thu
2Fri11:028.811:268.54:530.85:200.66:227:10New Moon2Fri
3Sat11:448.85:370.76:000.66:217:11New Moon3Sat
4Sun12:048.612:238.76:190.66:380.76:197:12New Moon4Sun
5Mon12:408.81:018.76:580.57:150.86:177:13New Moon5Mon
6Tue1:158.91:388.67:360.47:510.96:157:14New Moon6Tue
7Wed1:529.02:178.58:160.48:291.06:147:16Waxing Crescent7Wed
8Thu2:309.02:588.48:560.49:081.26:127:17Waxing Crescent8Thu
9Fri3:119.03:428.29:390.59:501.36:107:18Waxing Crescent9Fri
10Sat3:559.04:298.110:250.610:351.56:097:19Waxing Crescent10Sat
11Sun4:438.95:197.911:150.711:261.56:077:20First Quarter11Sun
12Mon5:368.96:147.912:100.76:057:21First Quarter12Mon
13Tue6:328.97:128.012:231.51:070.76:047:22First Quarter13Tue
14Wed7:319.18:098.31:241.42:050.56:027:24Waxing Gibbous14Wed
15Thu8:309.39:058.82:231.03:000.26:007:25Waxing Gibbous15Thu
16Fri9:289.69:599.43:210.53:54-0.15:597:26Waxing Gibbous16Fri
17Sat10:249.910:5110.04:17-0.14:45-0.45:577:27Waxing Gibbous17Sat
18Sun11:1810.111:4110.55:11-0.75:35-0.75:567:28Full Moon18Sun
19Mon12:1010.26:04-1.26:24-0.85:547:29Full Moon19Mon
20Tue12:3110.91:0110.26:55-1.57:13-0.85:537:30Full Moon20Tue
21Wed1:2011.21:5310.17:47-1.68:02-0.65:517:32Waning Gibbous21Wed
22Thu2:1011.12:459.88:39-1.58:54-0.35:497:33Waning Gibbous22Thu
23Fri3:0210.93:389.49:32-1.29:470.05:487:34Waning Gibbous23Fri
24Sat3:5610.54:339.010:27-0.710:430.45:467:35Third Quarter24Sat
25Sun4:5110.05:318.711:24-0.311:410.85:457:36Third Quarter25Sun
26Mon5:509.56:318.412:220.15:447:37Third Quarter26Mon
27Tue6:519.17:328.312:421.11:210.55:427:38Third Quarter27Tue
28Wed7:528.88:298.31:431.22:180.75:417:40Waning Crescent28Wed
29Thu8:508.69:228.42:411.23:120.85:397:41Waning Crescent29Thu
30Fri9:438.510:098.63:351.14:000.95:387:42Waning 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 2:03 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