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

TIDE TIMES for Wednesday, July 1, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 4h 42m at 7:24 pm (1.5 ft)
Next high tide (tomorrow) : 1:29 am (9.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:09 am
Moon phase : Full Moon (97% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:048.910:289.24:020.84:240.65:367:43Waning Crescent1Mon
2Tue10:539.111:139.74:500.35:090.45:357:44New Moon2Tue
3Wed11:409.311:5810.25:37-0.25:530.25:337:45New Moon3Wed
4Thu12:289.56:24-0.76:380.05:327:47New Moon4Thu
5Fri12:4410.61:169.67:11-1.07:24-0.15:317:48New Moon5Fri
6Sat1:3110.92:069.68:01-1.28:13-0.15:307:49Waxing Crescent6Sat
7Sun2:2110.92:589.58:52-1.29:060.05:287:50Waxing Crescent7Sun
8Mon3:1410.93:529.49:47-1.110:020.15:277:51Waxing Crescent8Mon
9Tue4:1010.64:509.210:43-0.811:010.35:267:52First Quarter9Tue
10Wed5:0910.35:509.111:42-0.55:257:53First Quarter10Wed
11Thu6:129.96:539.112:040.412:43-0.35:247:54First Quarter11Thu
12Fri7:169.67:549.21:080.51:43-0.15:237:55Waxing Gibbous12Fri
13Sat8:199.38:539.32:110.42:400.05:227:56Waxing Gibbous13Sat
14Sun9:189.29:479.53:110.33:350.25:207:57Waxing Gibbous14Sun
15Mon10:149.010:379.64:070.24:260.35:197:59Waxing Gibbous15Mon
16Tue11:048.911:219.64:580.15:130.55:188:00Full Moon16Tue
17Wed11:508.75:450.05:560.75:188:01Full Moon17Wed
18Thu12:039.612:328.66:280.06:370.95:178:02Full Moon18Thu
19Fri12:429.61:128.57:090.17:171.15:168:03Full Moon19Fri
20Sat1:209.51:518.37:490.27:571.25:158:04Waning Gibbous20Sat
21Sun2:009.42:328.28:310.38:391.45:148:05Waning Gibbous21Sun
22Mon2:419.33:158.29:130.49:231.55:138:06Waning Gibbous22Mon
23Tue3:259.14:008.19:580.610:091.65:128:06Waning Gibbous23Tue
24Wed4:129.04:488.010:440.710:581.75:128:07Third Quarter24Wed
25Thu5:018.85:388.111:330.911:511.75:118:08Third Quarter25Thu
26Fri5:538.66:308.212:240.95:108:09Third Quarter26Fri
27Sat6:488.57:238.412:461.61:160.95:108:10Third Quarter27Sat
28Sun7:438.58:148.81:421.42:070.95:098:11Waning Crescent28Sun
29Mon8:378.69:049.22:361.02:570.85:088:12Waning Crescent29Mon
30Tue9:308.89:539.73:290.53:460.65:088:13Waning Crescent30Tue
31Wed10:239.010:4210.24:210.04:340.45:078:13Waning Crescent31Wed
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 10:26 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 97% 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 Full Moon (97% 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