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

TIDE TIMES for Sunday, July 12, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 4:12 pm (0.5 ft)
Next high tide : in 4h 21m at 10:08 am (8.4 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:16 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Nov 1982

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:5310.011:219.44:480.35:18-0.56:174:36Full Moon1Mon
2Tue11:3610.45:310.16:03-0.86:184:35Full Moon2Tue
3Wed12:079.512:2210.76:150.06:51-1.06:194:33Waning Gibbous3Wed
4Thu12:569.41:1110.87:020.07:42-1.16:204:32Waning Gibbous4Thu
5Fri1:479.42:0210.77:530.18:35-1.06:224:31Waning Gibbous5Fri
6Sat2:409.22:5810.58:480.29:31-0.86:234:30Third Quarter6Sat
7Sun3:389.03:5710.29:480.410:31-0.56:244:29Third Quarter7Sun
8Mon4:388.94:599.910:500.511:32-0.36:254:27Third Quarter8Mon
9Tue5:418.96:049.611:560.56:274:26Third Quarter9Tue
10Wed6:449.17:089.412:33-0.11:000.46:284:25Waning Crescent10Wed
11Thu7:449.38:099.21:32-0.12:010.26:294:24Waning Crescent11Thu
12Fri8:399.59:069.12:270.02:580.06:304:23Waning Crescent12Fri
13Sat9:309.69:579.03:190.13:51-0.16:324:22Waning Crescent13Sat
14Sun10:169.710:448.94:070.34:38-0.26:334:21New Moon14Sun
15Mon10:589.711:278.74:510.55:23-0.26:344:20New Moon15Mon
16Tue11:379.65:320.76:04-0.16:354:19New Moon16Tue
17Wed12:088.512:169.56:130.96:450.06:374:19Waxing Crescent17Wed
18Thu12:488.312:569.46:531.17:270.26:384:18Waxing Crescent18Thu
19Fri1:298.21:379.27:351.38:090.36:394:17Waxing Crescent19Fri
20Sat2:118.02:219.08:181.48:540.56:404:16Waxing Crescent20Sat
21Sun2:577.93:088.89:051.69:410.76:424:15Waxing Crescent21Sun
22Mon3:457.83:588.69:551.710:310.96:434:15First Quarter22Mon
23Tue4:367.84:518.410:491.711:230.96:444:14First Quarter23Tue
24Wed5:297.95:468.311:451.66:454:14First Quarter24Wed
25Thu6:228.16:418.312:161.012:411.46:464:13First Quarter25Thu
26Fri7:138.57:358.41:070.91:351.06:484:12Waxing Gibbous26Fri
27Sat8:028.98:278.61:560.82:260.66:494:12Waxing Gibbous27Sat
28Sun8:509.49:188.82:430.63:170.16:504:11Waxing Gibbous28Sun
29Mon9:379.910:089.03:300.44:06-0.46:514:11Full Moon29Mon
30Tue10:2410.410:579.24:170.24:54-0.96:524:11Full Moon30Tue
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 1:10 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 spring phase. Tonight's moon is 5% 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 Crescent (5% 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