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

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 5h 14m at 11:59 pm (0.6 ft)
Next high tide (tomorrow) : 6:04 am (8.9 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 2013

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat6:079.66:429.612:010.212:30-0.25:078:14Third Quarter1Sat
2Sun7:089.17:419.61:030.31:270.15:068:15Waning Crescent2Sun
3Mon8:088.88:369.52:030.32:220.45:068:16Waning Crescent3Mon
4Tue9:068.59:289.53:000.33:150.75:068:16Waning Crescent4Tue
5Wed9:598.410:179.53:540.34:050.95:058:17Waning Crescent5Wed
6Thu10:488.211:019.44:440.34:521.05:058:18New Moon6Thu
7Fri11:338.211:439.45:290.35:361.15:058:18New Moon7Fri
8Sat12:148.16:120.36:171.25:058:19New Moon8Sat
9Sun12:229.412:538.16:520.46:581.35:048:20New Moon9Sun
10Mon1:019.31:328.27:320.47:381.35:048:20New Moon10Mon
11Tue1:419.32:128.28:120.48:201.35:048:21Waxing Crescent11Tue
12Wed2:229.32:548.38:530.59:031.35:048:21Waxing Crescent12Wed
13Thu3:059.23:378.49:350.59:481.35:048:22Waxing Crescent13Thu
14Fri3:509.04:238.510:180.610:361.35:048:22Waxing Crescent14Fri
15Sat4:388.95:108.711:040.711:281.25:048:23First Quarter15Sat
16Sun5:298.76:008.911:520.75:048:23First Quarter16Sun
17Mon6:238.66:539.112:221.112:430.85:048:23First Quarter17Mon
18Tue7:198.57:469.51:190.81:350.85:048:24Waxing Gibbous18Tue
19Wed8:158.68:399.92:150.52:290.75:048:24Waxing Gibbous19Wed
20Thu9:128.79:3310.33:110.13:220.55:048:24Waxing Gibbous20Thu
21Fri10:088.910:2710.74:06-0.44:160.35:058:24Waxing Gibbous21Fri
22Sat11:039.211:2111.05:00-0.85:100.05:058:25Full Moon22Sat
23Sun11:569.45:53-1.16:04-0.35:058:25Full Moon23Sun
24Mon12:1411.212:499.76:45-1.46:57-0.55:068:25Full Moon24Mon
25Tue1:0711.31:429.97:37-1.47:52-0.55:068:25Waning Gibbous25Tue
26Wed2:0011.12:3510.08:29-1.48:47-0.55:068:25Waning Gibbous26Wed
27Thu2:5410.83:2810.09:21-1.29:43-0.45:078:25Waning Gibbous27Thu
28Fri3:4910.44:229.910:13-0.910:39-0.25:078:25Third Quarter28Fri
29Sat4:449.85:179.811:06-0.511:370.15:088:25Third Quarter29Sat
30Sun5:419.36:139.712:000.05:088:25Third Quarter30Sun
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 3:01 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