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 3h 17m at 8:41 am (0.5 ft)
Next high tide : 2:43 pm (8.1 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 - Dec 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:198.912:3010.16:240.36:59-0.66:544:10Waxing Crescent1Tue
2Wed1:038.71:149.87:100.67:44-0.36:554:10Waxing Crescent2Wed
3Thu1:488.51:599.57:560.88:300.06:564:10Waxing Crescent3Thu
4Fri2:338.42:469.28:431.09:160.26:574:09Waxing Crescent4Fri
5Sat3:208.33:348.89:321.210:040.56:584:09First Quarter5Sat
6Sun4:098.24:258.510:241.310:540.76:594:09First Quarter6Sun
7Mon5:008.25:188.311:181.411:460.97:004:09First Quarter7Mon
8Tue5:538.26:138.112:141.37:004:09First Quarter8Tue
9Wed6:448.47:078.012:371.01:081.27:014:09Waxing Gibbous9Wed
10Thu7:348.67:598.01:271.02:000.97:024:09Waxing Gibbous10Thu
11Fri8:228.98:498.12:151.02:500.67:034:09Waxing Gibbous11Fri
12Sat9:089.29:378.23:020.93:370.37:044:09Waxing Gibbous12Sat
13Sun9:539.510:238.43:470.84:23-0.17:054:09Full Moon13Sun
14Mon10:379.811:098.64:310.65:08-0.47:054:10Full Moon14Mon
15Tue11:2110.111:548.85:150.45:53-0.77:064:10Full Moon15Tue
16Wed12:0710.46:000.26:39-0.97:074:10Waning Gibbous16Wed
17Thu12:419.012:5610.56:480.17:27-1.07:074:10Waning Gibbous17Thu
18Fri1:319.21:4710.57:390.08:17-1.07:084:11Waning Gibbous18Fri
19Sat2:239.42:4010.38:34-0.19:10-1.07:094:11Waning Gibbous19Sat
20Sun3:179.53:3710.09:31-0.110:04-0.87:094:12Third Quarter20Sun
21Mon4:139.64:369.710:31-0.111:01-0.67:104:12Third Quarter21Mon
22Tue5:129.65:389.311:34-0.17:104:13Third Quarter22Tue
23Wed6:129.86:409.012:00-0.412:36-0.27:114:13Waning Crescent23Wed
24Thu7:119.97:428.812:58-0.21:37-0.37:114:14Waning Crescent24Thu
25Fri8:0810.08:418.71:55-0.12:36-0.57:114:14Waning Crescent25Fri
26Sat9:0310.09:378.62:500.13:31-0.57:124:15Waning Crescent26Sat
27Sun9:5410.010:288.63:420.24:23-0.67:124:16New Moon27Sun
28Mon10:419.911:158.54:320.35:10-0.57:124:16New Moon28Mon
29Tue11:269.811:588.45:180.45:54-0.47:124:17New Moon29Tue
30Wed12:089.66:020.56:37-0.37:134:18New Moon30Wed
31Thu12:398.412:509.56:450.77:19-0.17:134:19Waxing Crescent31Thu
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 11:42 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 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