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 1h 00m at 7:22 am (0.6 ft)
Next high tide : 1:21 pm (7.8 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 - Dec 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:448.02:558.98:521.49:270.66:544:10Waxing Crescent1Fri
2Sat3:307.93:438.69:411.510:150.76:554:10First Quarter2Sat
3Sun4:207.94:358.410:331.611:060.96:564:10First Quarter3Sun
4Mon5:118.05:298.311:281.511:570.96:574:09First Quarter4Mon
5Tue6:048.26:248.212:241.46:584:09First Quarter5Tue
6Wed6:558.57:188.212:480.91:181.16:594:09Waxing Gibbous6Wed
7Thu7:458.98:118.31:380.82:110.77:004:09Waxing Gibbous7Thu
8Fri8:339.39:028.52:260.73:010.27:014:09Waxing Gibbous8Fri
9Sat9:219.89:528.73:130.53:51-0.37:024:09Waxing Gibbous9Sat
10Sun10:0810.210:418.94:010.34:39-0.77:024:09Full Moon10Sun
11Mon10:5610.611:319.14:480.15:28-1.17:034:09Full Moon11Mon
12Tue11:4510.95:36-0.16:17-1.37:044:09Full Moon12Tue
13Wed12:209.312:3511.06:26-0.27:08-1.47:054:09Waning Gibbous13Wed
14Thu1:129.41:2810.97:19-0.38:00-1.47:064:10Waning Gibbous14Thu
15Fri2:069.42:2310.78:15-0.28:54-1.27:064:10Waning Gibbous15Fri
16Sat3:019.43:2010.39:13-0.19:50-0.97:074:10Third Quarter16Sat
17Sun3:589.44:199.810:130.010:47-0.67:084:10Third Quarter17Sun
18Mon4:589.45:219.411:160.111:45-0.37:084:11Third Quarter18Mon
19Tue5:589.46:249.012:190.17:094:11Third Quarter19Tue
20Wed6:579.57:268.712:43-0.11:200.17:094:12Waning Crescent20Wed
21Thu7:539.58:248.41:390.22:180.07:104:12Waning Crescent21Thu
22Fri8:469.59:188.32:320.43:130.07:104:13Waning Crescent22Fri
23Sat9:359.510:088.23:230.64:02-0.17:114:13Waning Crescent23Sat
24Sun10:199.410:528.14:100.74:48-0.17:114:14New Moon24Sun
25Mon11:019.411:338.04:540.95:300.07:124:14New Moon25Mon
26Tue11:419.35:351.06:100.17:124:15New Moon26Tue
27Wed12:128.012:209.26:161.06:500.17:124:16New Moon27Wed
28Thu12:518.01:009.16:571.17:310.27:124:17Waxing Crescent28Thu
29Fri1:328.01:419.07:391.28:120.37:134:17Waxing Crescent29Fri
30Sat2:148.02:258.98:221.28:550.47:134:18Waxing Crescent30Sat
31Sun2:588.13:108.79:081.29:390.67:134:19Waxing Crescent31Sun
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 10:21 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 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