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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 11:30 am (0.0 ft)
Next high tide : in 25m at 5:06 am (9.5 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:219.52:538.48:510.29:021.25:078:14Waxing Crescent1Sun
2Mon3:049.33:378.49:340.49:481.35:078:15Waxing Crescent2Mon
3Tue3:509.14:238.410:190.610:361.45:068:16Waxing Crescent3Tue
4Wed4:378.85:118.411:060.811:271.45:068:16First Quarter4Wed
5Thu5:278.66:008.411:550.95:058:17First Quarter5Thu
6Fri6:208.46:528.612:211.412:451.05:058:18First Quarter6Fri
7Sat7:148.27:438.81:151.31:351.15:058:18First Quarter7Sat
8Sun8:088.28:329.02:091.12:251.15:058:19Waxing Gibbous8Sun
9Mon9:008.39:219.43:010.83:141.05:048:19Waxing Gibbous9Mon
10Tue9:518.410:109.73:520.54:020.95:048:20Waxing Gibbous10Tue
11Wed10:428.610:5810.24:410.14:500.75:048:21Full Moon11Wed
12Thu11:318.911:4610.55:30-0.35:380.45:048:21Full Moon12Thu
13Fri12:209.26:18-0.76:270.25:048:22Full Moon13Fri
14Sat12:3510.81:099.47:06-1.07:17-0.15:048:22Full Moon14Sat
15Sun1:2511.02:009.67:56-1.28:09-0.25:048:22Waning Gibbous15Sun
16Mon2:1711.02:539.88:47-1.29:04-0.35:048:23Waning Gibbous16Mon
17Tue3:1110.83:479.99:40-1.110:01-0.35:048:23Waning Gibbous17Tue
18Wed4:0710.54:4210.010:34-0.911:00-0.25:048:24Third Quarter18Wed
19Thu5:0510.15:4010.011:29-0.75:048:24Third Quarter19Thu
20Fri6:059.66:3910.012:01-0.112:26-0.45:048:24Third Quarter20Fri
21Sat7:069.27:3710.01:02-0.11:24-0.15:058:24Waning Crescent21Sat
22Sun8:088.98:3510.02:030.02:210.25:058:25Waning Crescent22Sun
23Mon9:078.79:299.93:020.03:160.45:058:25Waning Crescent23Mon
24Tue10:038.510:219.83:580.04:080.65:058:25Waning Crescent24Tue
25Wed10:548.411:089.74:490.04:580.85:068:25New Moon25Wed
26Thu11:418.311:529.65:370.15:440.95:068:25New Moon26Thu
27Fri12:248.36:210.16:281.05:078:25New Moon27Fri
28Sat12:349.51:048.37:020.27:101.15:078:25New Moon28Sat
29Sun1:149.41:448.37:430.37:511.15:078:25Waxing Crescent29Sun
30Mon1:549.32:248.48:230.48:341.15:088:25Waxing Crescent30Mon
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 8:18 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 48% 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 First Quarter (48% 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