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

TIDE TIMES for Sunday, August 2, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 59m at 9:08 pm (0.7 ft)
Next high tide (tomorrow) : 3:12 am (9.1 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:36 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 1956

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon9:249.59:509.93:17-0.23:42-0.26:406:24Waning Crescent1Mon
2Tue10:199.910:4610.04:12-0.44:38-0.56:416:23New Moon2Tue
3Wed11:1110.211:3910.05:03-0.55:32-0.86:426:21New Moon3Wed
4Thu12:0010.55:52-0.56:22-1.06:436:19New Moon4Thu
5Fri12:289.912:4610.56:39-0.47:10-0.96:456:17New Moon5Fri
6Sat1:159.61:3110.47:25-0.17:57-0.76:466:16Waxing Crescent6Sat
7Sun2:029.32:1710.28:110.28:44-0.56:476:14Waxing Crescent7Sun
8Mon2:489.03:039.98:570.59:32-0.16:486:12Waxing Crescent8Mon
9Tue3:358.63:519.59:450.810:210.36:496:11Waxing Crescent9Tue
10Wed4:248.34:419.110:351.211:120.76:506:09First Quarter10Wed
11Thu5:158.05:348.811:281.46:516:07First Quarter11Thu
12Fri6:107.96:308.512:060.912:241.66:536:06First Quarter12Fri
13Sat7:057.87:268.41:011.11:211.66:546:04First Quarter13Sat
14Sun8:008.08:218.41:551.22:161.56:556:02Waxing Gibbous14Sun
15Mon8:518.29:138.42:461.13:081.36:566:01Waxing Gibbous15Mon
16Tue9:388.510:018.53:341.13:571.06:575:59Waxing Gibbous16Tue
17Wed10:228.810:468.64:181.04:440.76:585:58Waxing Gibbous17Wed
18Thu11:039.111:298.75:010.95:270.47:005:56Full Moon18Thu
19Fri11:449.55:410.86:090.17:015:54Full Moon19Fri
20Sat12:118.812:249.86:210.76:51-0.27:025:53Full Moon20Sat
21Sun12:538.91:0610.07:010.67:34-0.47:035:51Waning Gibbous21Sun
22Mon1:379.01:5010.27:440.58:20-0.57:055:50Waning Gibbous22Mon
23Tue2:249.02:3810.38:300.59:09-0.57:065:48Waning Gibbous23Tue
24Wed3:149.03:3010.29:210.510:02-0.47:075:47Waning Gibbous24Wed
25Thu4:078.94:2610.110:160.510:58-0.37:085:45Third Quarter25Thu
26Fri5:048.95:259.911:160.611:57-0.27:095:44Third Quarter26Fri
27Sat6:049.06:289.712:200.57:115:42Third Quarter27Sat
28Sun6:069.26:329.512:58-0.112:250.36:124:41Waning Crescent28Sun
29Mon7:079.57:349.412:57-0.11:270.16:134:40Waning Crescent29Mon
30Tue8:049.88:349.41:54-0.12:27-0.26:144:38Waning Crescent30Tue
31Wed8:5910.19:309.42:49-0.13:23-0.56:164:37Waning Crescent31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

Show All
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 12:10 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 84% 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 (84% 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