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

TIDE TIMES for Monday, August 3, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 2h 06m at 9:56 pm (0.5 ft)
Next high tide (tomorrow) : 4:00 am (8.9 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:37 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 1954

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:469.511:0510.84:41-0.74:57-0.25:377:42New Moon1Sat
2Sun11:399.611:5611.15:34-1.15:48-0.35:367:43New Moon2Sun
3Mon12:319.76:26-1.46:38-0.35:357:44New Moon3Mon
4Tue12:4711.21:239.67:18-1.57:29-0.35:337:46Waxing Crescent4Tue
5Wed1:3811.22:159.48:10-1.38:21-0.15:327:47Waxing Crescent5Wed
6Thu2:3110.93:089.29:03-1.09:150.25:317:48Waxing Crescent6Thu
7Fri3:2510.54:039.09:57-0.610:110.55:297:49Waxing Crescent7Fri
8Sat4:2010.04:588.710:51-0.211:090.85:287:50First Quarter8Sat
9Sun5:179.55:568.611:470.25:277:51First Quarter9Sun
10Mon6:169.06:548.512:091.012:430.55:267:52First Quarter10Mon
11Tue7:168.67:508.51:091.11:380.85:257:53First Quarter11Tue
12Wed8:138.48:428.62:071.12:301.05:247:54Waxing Gibbous12Wed
13Thu9:078.29:308.83:021.03:191.15:227:55Waxing Gibbous13Thu
14Fri9:578.110:148.93:530.94:061.35:217:57Waxing Gibbous14Fri
15Sat10:438.110:559.04:390.74:491.35:207:58Waxing Gibbous15Sat
16Sun11:268.011:359.15:230.65:301.45:197:59Full Moon16Sun
17Mon12:068.06:040.56:101.45:188:00Full Moon17Mon
18Tue12:139.212:458.06:440.56:481.45:178:01Full Moon18Tue
19Wed12:529.31:248.17:240.47:271.45:168:02Full Moon19Wed
20Thu1:329.42:058.18:040.48:081.45:158:03Waning Gibbous20Thu
21Fri2:149.42:488.28:460.48:511.45:158:04Waning Gibbous21Fri
22Sat2:589.43:348.39:310.39:391.35:148:05Waning Gibbous22Sat
23Sun3:469.44:238.410:170.410:301.35:138:06Waning Gibbous23Sun
24Mon4:379.35:148.611:070.411:261.15:128:07Third Quarter24Mon
25Tue5:329.26:088.911:590.45:118:07Third Quarter25Tue
26Wed6:309.17:049.312:260.912:540.45:118:08Third Quarter26Wed
27Thu7:309.07:599.71:260.51:490.35:108:09Waning Crescent27Thu
28Fri8:299.08:5410.22:260.12:440.35:098:10Waning Crescent28Fri
29Sat9:289.09:4910.63:24-0.33:380.25:098:11Waning Crescent29Sat
30Sun10:259.110:4310.94:21-0.74:320.15:088:12New Moon30Sun
31Mon11:209.211:3611.15:16-1.05:260.05:088:13New Moon31Mon
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 12:58 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 transitional phase. Tonight's moon is 75% 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 (75% 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