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

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 28m at 1:17 pm (0.8 ft)
Next high tide : 7:31 pm (9.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Dec 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed6:599.97:318.912:470.01:27-0.26:534:10Waning Crescent1Wed
2Thu7:5610.18:308.81:440.12:26-0.56:544:10Waning Crescent2Thu
3Fri8:5110.39:278.82:390.13:22-0.76:554:10Waning Crescent3Fri
4Sat9:4410.510:218.73:320.24:16-0.86:564:09New Moon4Sat
5Sun10:3410.411:108.74:240.25:06-0.86:574:09New Moon5Sun
6Mon11:2210.311:588.65:130.35:54-0.76:584:09New Moon6Mon
7Tue12:0810.16:000.46:40-0.56:594:09Waxing Crescent7Tue
8Wed12:438.512:549.86:470.67:25-0.37:004:09Waxing Crescent8Wed
9Thu1:288.41:399.57:340.88:100.07:014:09Waxing Crescent9Thu
10Fri2:148.32:269.28:211.08:550.27:024:09Waxing Crescent10Fri
11Sat3:008.23:138.89:101.19:410.57:034:09First Quarter11Sat
12Sun3:478.24:038.410:011.210:290.87:044:09First Quarter12Sun
13Mon4:368.24:558.110:551.311:181.07:044:09First Quarter13Mon
14Tue5:268.35:497.811:491.37:054:09First Quarter14Tue
15Wed6:178.46:437.612:091.212:441.27:064:10Waxing Gibbous15Wed
16Thu7:078.57:377.612:591.31:371.07:074:10Waxing Gibbous16Thu
17Fri7:568.78:287.61:481.42:290.87:074:10Waxing Gibbous17Fri
18Sat8:448.99:177.62:361.43:180.67:084:11Waxing Gibbous18Sat
19Sun9:309.210:047.83:231.34:050.37:094:11Full Moon19Sun
20Mon10:169.510:508.04:081.14:500.07:094:11Full Moon20Mon
21Tue11:019.811:358.34:530.95:34-0.37:104:12Full Moon21Tue
22Wed11:4710.15:380.66:19-0.57:104:12Full Moon22Wed
23Thu12:218.612:3410.26:250.47:05-0.77:114:13Waning Gibbous23Thu
24Fri1:088.91:2310.27:150.27:53-0.87:114:14Waning Gibbous24Fri
25Sat1:589.22:1510.18:080.08:42-0.87:114:14Waning Gibbous25Sat
26Sun2:499.43:099.89:04-0.19:34-0.67:124:15Third Quarter26Sun
27Mon3:439.64:069.410:02-0.210:28-0.47:124:16Third Quarter27Mon
28Tue4:399.85:069.011:03-0.211:24-0.27:124:16Third Quarter28Tue
29Wed5:379.96:088.712:06-0.27:124:17Third Quarter29Wed
30Thu6:369.97:118.412:220.11:08-0.37:134:18Waning Crescent30Thu
31Fri7:3510.08:118.31:210.32:08-0.47:134:19Waning Crescent31Fri
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 4:24 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 67% 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 (67% 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