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

TIDE TIMES for Sunday, July 5, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 10:22 pm (1.1 ft)
Next high tide : in 15m at 4:10 pm (8.6 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:11 am
Moon phase : Waning Gibbous (72% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 1993

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:158.712:299.06:270.96:500.56:406:24Full Moon1Fri
2Sat12:528.61:059.17:041.07:290.46:416:23Full Moon2Sat
3Sun1:308.51:429.27:411.08:080.46:426:21Waning Gibbous3Sun
4Mon2:098.52:229.28:191.18:500.56:436:19Waning Gibbous4Mon
5Tue2:518.33:049.28:591.39:330.66:456:17Waning Gibbous5Tue
6Wed3:368.23:509.19:431.410:210.76:466:16Waning Gibbous6Wed
7Thu4:238.14:409.110:311.511:120.86:476:14Third Quarter7Thu
8Fri5:158.05:349.011:241.56:486:12Third Quarter8Fri
9Sat6:118.16:329.012:070.812:231.46:496:11Third Quarter9Sat
10Sun7:098.37:319.21:040.71:241.16:506:09Waning Crescent10Sun
11Mon8:068.78:309.42:010.52:240.76:516:07Waning Crescent11Mon
12Tue9:019.39:279.62:560.23:210.16:536:06Waning Crescent12Tue
13Wed9:559.910:239.93:48-0.14:17-0.56:546:04Waning Crescent13Wed
14Thu10:4710.511:1710.04:40-0.45:11-1.06:556:02New Moon14Thu
15Fri11:3710.95:30-0.66:03-1.46:566:01New Moon15Fri
16Sat12:0810.112:2711.26:19-0.76:54-1.66:575:59New Moon16Sat
17Sun12:5910.11:1711.37:09-0.77:45-1.56:595:57Waxing Crescent17Sun
18Mon1:519.92:0811.17:59-0.58:38-1.37:005:56Waxing Crescent18Mon
19Tue2:439.63:0010.88:52-0.29:31-1.07:015:54Waxing Crescent19Tue
20Wed3:369.33:5510.39:460.110:26-0.57:025:53First Quarter20Wed
21Thu4:318.94:519.810:420.511:22-0.17:035:51First Quarter21Thu
22Fri5:298.65:499.311:410.87:055:50First Quarter22Fri
23Sat6:288.46:508.912:190.312:411.07:065:48First Quarter23Sat
24Sun7:278.47:498.61:170.61:411.17:075:47Waxing Gibbous24Sun
25Mon8:238.48:468.52:120.82:381.17:085:45Waxing Gibbous25Mon
26Tue9:138.69:378.43:030.93:310.97:095:44Waxing Gibbous26Tue
27Wed9:598.710:258.43:511.04:190.87:115:42Waxing Gibbous27Wed
28Thu10:418.911:088.34:351.05:040.67:125:41Full Moon28Thu
29Fri11:219.011:488.35:161.15:450.57:135:40Full Moon29Fri
30Sat11:589.25:561.16:250.47:145:38Full Moon30Sat
31Sun12:268.311:36 AM9.35:341.16:040.36:164:37Full Moon31Sun
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 7:16 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 72% 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 (72% 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