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

TIDE TIMES for Saturday, August 1, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 8:50 am (0.3 ft)
Next high tide (tomorrow) : in 3h 14m at 2:28 am (9.2 ft)
Sunset today : 8:03 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waning Gibbous (91% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Feb 1958

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:379.39:108.12:290.93:110.16:574:55Waxing Gibbous1Sat
2Sun9:299.610:018.53:200.64:00-0.36:564:57Full Moon2Sun
3Mon10:1910.010:509.04:110.24:48-0.76:554:58Full Moon3Mon
4Tue11:0810.411:389.55:00-0.35:35-1.16:544:59Full Moon4Tue
5Wed11:5710.65:50-0.76:22-1.36:535:01Full Moon5Wed
6Thu12:269.912:4710.66:40-1.07:10-1.46:525:02Waning Gibbous6Thu
7Fri1:1510.21:3810.47:33-1.27:59-1.36:505:03Waning Gibbous7Fri
8Sat2:0610.42:3110.18:27-1.28:50-1.16:495:05Waning Gibbous8Sat
9Sun2:5910.43:269.79:22-1.09:44-0.86:485:06Third Quarter9Sun
10Mon3:5410.34:249.210:21-0.810:40-0.46:475:07Third Quarter10Mon
11Tue4:5210.15:258.711:21-0.511:390.06:455:09Third Quarter11Tue
12Wed5:539.86:288.412:23-0.36:445:10Third Quarter12Wed
13Thu6:549.67:308.212:400.31:25-0.16:435:11Waning Crescent13Thu
14Fri7:549.48:308.11:400.42:240.06:415:13Waning Crescent14Fri
15Sat8:529.39:268.22:380.53:190.06:405:14Waning Crescent15Sat
16Sun9:449.210:158.23:320.54:090.06:395:15New Moon16Sun
17Mon10:319.210:588.34:210.54:540.16:375:16New Moon17Mon
18Tue11:139.111:378.45:060.55:340.16:365:18New Moon18Tue
19Wed11:529.05:470.46:130.26:345:19New Moon19Wed
20Thu12:148.512:308.96:280.46:510.26:335:20New Moon20Thu
21Fri12:528.71:098.87:080.47:290.46:315:22Waxing Crescent21Fri
22Sat1:308.71:508.77:490.48:080.56:305:23Waxing Crescent22Sat
23Sun2:108.82:328.58:320.58:490.76:285:24Waxing Crescent23Sun
24Mon2:538.83:178.39:160.69:320.96:275:25Waxing Crescent24Mon
25Tue3:388.84:058.010:040.710:191.06:255:27First Quarter25Tue
26Wed4:278.74:577.810:570.811:101.26:245:28First Quarter26Wed
27Thu5:208.75:527.711:520.86:225:29First Quarter27Thu
28Fri6:158.86:497.812:061.212:490.76:205:30First Quarter28Fri
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 5:39 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 91% 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 (91% 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