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

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 18m at 11:44 pm (0.3 ft)
Next high tide (tomorrow) : 5:46 am (8.4 ft)
Sunset today : 7:59 pm
Sunrise tomorrow : 5:39 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jan 1952

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:009.52:1810.48:10-0.48:45-1.17:134:19Waxing Crescent1Tue
2Wed2:539.63:149.99:07-0.39:37-0.77:134:20First Quarter2Wed
3Thu3:479.64:109.310:06-0.210:30-0.37:134:21First Quarter3Thu
4Fri4:439.55:098.711:050.011:250.17:134:22First Quarter4Fri
5Sat5:399.46:098.212:060.27:134:23First Quarter5Sat
6Sun6:369.37:097.812:210.51:050.37:134:24Waxing Gibbous6Sun
7Mon7:319.18:077.61:160.92:030.47:134:25Waxing Gibbous7Mon
8Tue8:249.09:017.52:091.12:570.47:134:26Waxing Gibbous8Tue
9Wed9:149.09:507.43:011.23:470.57:134:27Waxing Gibbous9Wed
10Thu10:008.910:357.43:491.34:330.57:124:28Full Moon10Thu
11Fri10:438.911:157.54:341.35:150.47:124:29Full Moon11Fri
12Sat11:239.011:547.65:161.35:540.47:124:30Full Moon12Sat
13Sun12:029.05:561.26:320.47:114:31Full Moon13Sun
14Mon12:327.712:418.96:361.27:100.47:114:32Waning Gibbous14Mon
15Tue1:107.91:218.97:171.17:490.47:114:33Waning Gibbous15Tue
16Wed1:508.12:038.78:001.08:270.57:104:34Waning Gibbous16Wed
17Thu2:318.32:478.68:440.99:080.67:104:36Waning Gibbous17Thu
18Fri3:158.53:348.39:310.99:510.77:094:37Third Quarter18Fri
19Sat4:008.64:258.110:220.810:370.97:094:38Third Quarter19Sat
20Sun4:508.85:197.811:180.711:291.07:084:39Third Quarter20Sun
21Mon5:439.06:187.712:170.57:074:41Third Quarter21Mon
22Tue6:409.27:177.712:251.11:170.37:074:42Waning Crescent22Tue
23Wed7:389.68:177.81:231.02:160.07:064:43Waning Crescent23Wed
24Thu8:369.99:168.12:220.73:14-0.47:054:44Waning Crescent24Thu
25Fri9:3310.310:128.53:200.44:09-0.87:044:46New Moon25Fri
26Sat10:2910.611:058.94:170.05:02-1.17:044:47New Moon26Sat
27Sun11:2310.811:579.35:12-0.45:53-1.37:034:48New Moon27Sun
28Mon12:1510.76:05-0.76:42-1.47:024:49Waxing Crescent28Mon
29Tue12:479.71:0710.56:59-0.87:30-1.37:014:51Waxing Crescent29Tue
30Wed1:379.91:5910.17:52-0.88:19-1.07:004:52Waxing Crescent30Wed
31Thu2:289.92:519.68:46-0.79:08-0.66:594:53Waxing 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 2:45 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places Plum Island Sound, South End, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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