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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : in 6h 12m at 12:10 am (0.8 ft)
Next high tide (tomorrow) : 6:12 am (8.5 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Mar 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:5810.32:279.48:23-1.08:38-0.36:185:32Waxing Crescent1Thu
2Fri2:4910.43:219.09:17-0.89:31-0.16:175:33First Quarter2Fri
3Sat3:4310.24:198.610:15-0.610:290.36:155:34First Quarter3Sat
4Sun4:4210.05:218.211:17-0.311:310.66:135:36First Quarter4Sun
5Mon5:459.76:268.012:210.06:125:37First Quarter5Mon
6Tue6:509.57:318.012:360.71:250.16:105:38Waxing Gibbous6Tue
7Wed7:559.48:338.11:400.72:260.16:085:39Waxing Gibbous7Wed
8Thu8:559.39:308.32:410.63:230.16:075:40Waxing Gibbous8Thu
9Fri9:509.310:208.63:370.54:130.06:055:42Full Moon9Fri
10Sat10:399.211:038.84:290.34:580.16:035:43Full Moon10Sat
11Sun11:229.111:438.95:150.25:380.26:015:44Full Moon11Sun
12Mon12:028.95:570.26:170.36:005:45Full Moon12Mon
13Tue12:209.012:418.86:380.26:540.55:585:46Waning Gibbous13Tue
14Wed12:579.01:218.57:180.27:320.75:565:48Waning Gibbous14Wed
15Thu1:359.02:018.38:000.38:120.95:555:49Waning Gibbous15Thu
16Fri2:168.92:448.18:430.58:531.25:535:50Waning Gibbous16Fri
17Sat2:598.83:297.89:280.79:381.45:515:51Third Quarter17Sat
18Sun3:468.74:197.510:180.910:281.65:495:52Third Quarter18Sun
19Mon4:378.55:127.311:121.111:221.85:485:53Third Quarter19Mon
20Tue5:328.46:097.312:091.25:465:55Third Quarter20Tue
21Wed6:298.47:067.412:201.81:051.15:445:56Waning Crescent21Wed
22Thu7:268.68:007.71:171.61:590.95:425:57Waning Crescent22Thu
23Fri8:208.88:518.22:121.22:490.65:415:58Waning Crescent23Fri
24Sat9:129.19:398.83:050.83:370.35:395:59Waning Crescent24Sat
25Sun10:029.410:259.43:550.24:220.05:376:00New Moon25Sun
26Mon10:509.711:1110.04:44-0.45:06-0.35:356:01New Moon26Mon
27Tue11:389.811:5710.55:33-0.95:51-0.45:336:03New Moon27Tue
28Wed12:279.86:22-1.26:37-0.55:326:04Waxing Crescent28Wed
29Thu12:4510.81:179.67:12-1.37:26-0.45:306:05Waxing Crescent29Thu
30Fri1:3510.92:109.48:05-1.28:17-0.25:286:06Waxing Crescent30Fri
31Sat2:2810.73:049.09:00-1.09:130.15:266:07Waxing Crescent31Sat
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 3:11 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 52% 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 (52% 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