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

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 6h 19m at 9:22 am (0.5 ft)
Next high tide : 3:25 pm (8.4 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:10 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Jun 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:479.15:45-0.55:550.25:078:14Full Moon1Sat
2Sun12:0210.712:369.46:33-0.96:440.05:068:15Full Moon2Sun
3Mon12:5111.01:269.67:22-1.17:34-0.25:068:16Waning Gibbous3Mon
4Tue1:4211.12:189.78:13-1.38:27-0.25:068:16Waning Gibbous4Tue
5Wed2:3511.03:119.89:05-1.29:23-0.25:058:17Waning Gibbous5Wed
6Thu3:3010.84:069.89:59-1.110:20-0.25:058:18Waning Gibbous6Thu
7Fri4:2610.55:039.910:54-0.911:20-0.15:058:18Third Quarter7Fri
8Sat5:2510.06:029.811:51-0.65:048:19Third Quarter8Sat
9Sun6:279.67:019.812:220.012:49-0.35:048:20Third Quarter9Sun
10Mon7:299.28:009.91:240.11:460.05:048:20Waning Crescent10Mon
11Tue8:298.98:569.92:240.12:420.25:048:21Waning Crescent11Tue
12Wed9:278.79:499.83:220.03:360.55:048:21Waning Crescent12Wed
13Thu10:218.610:389.84:160.04:270.65:048:22Waning Crescent13Thu
14Fri11:108.511:249.75:060.05:140.85:048:22New Moon14Fri
15Sat11:558.45:510.15:590.95:048:23New Moon15Sat
16Sun12:069.612:378.36:340.26:411.05:048:23New Moon16Sun
17Mon12:469.51:168.37:150.27:221.15:048:23New Moon17Mon
18Tue1:259.41:568.37:550.38:041.25:048:24Waxing Crescent18Tue
19Wed2:069.32:378.38:360.48:471.25:048:24Waxing Crescent19Wed
20Thu2:489.23:208.49:180.59:311.35:048:24Waxing Crescent20Thu
21Fri3:329.14:048.510:010.610:181.35:058:24Waxing Crescent21Fri
22Sat4:198.94:508.510:450.711:071.35:058:25First Quarter22Sat
23Sun5:078.75:398.611:320.811:591.35:058:25First Quarter23Sun
24Mon5:598.56:298.812:210.95:068:25First Quarter24Mon
25Tue6:538.37:219.012:541.11:121.05:068:25First Quarter25Tue
26Wed7:488.38:139.31:490.92:040.95:068:25Waxing Gibbous26Wed
27Thu8:428.49:059.72:430.62:550.85:078:25Waxing Gibbous27Thu
28Fri9:378.69:5710.13:370.23:470.65:078:25Waxing Gibbous28Fri
29Sat10:308.810:4910.64:29-0.34:390.35:088:25Full Moon29Sat
30Sun11:239.111:4110.95:21-0.75:310.05:088:25Full Moon30Sun
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 12:23 pm — 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 81% 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 (81% 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