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

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 3h 35m at 2:25 pm (1.6 ft)
Next high tide : 8:37 pm (8.8 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:27 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 2079

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:109.56:05-0.86:180.05:367:43New Moon1Mon
2Tue12:2510.81:009.56:54-1.17:050.05:357:44New Moon2Tue
3Wed1:1411.01:509.47:45-1.37:550.05:347:45Waxing Crescent3Wed
4Thu2:0411.12:439.38:37-1.28:470.15:327:47Waxing Crescent4Thu
5Fri2:5810.93:389.19:32-1.09:440.35:317:48Waxing Crescent5Fri
6Sat3:5410.64:358.810:29-0.710:430.65:307:49First Quarter6Sat
7Sun4:5410.15:368.711:28-0.311:460.85:297:50First Quarter7Sun
8Mon5:569.76:398.612:290.05:277:51First Quarter8Mon
9Tue7:009.37:418.712:510.91:290.35:267:52First Quarter9Tue
10Wed8:049.08:398.81:550.92:270.45:257:53Waxing Gibbous10Wed
11Thu9:038.89:329.02:550.83:200.65:247:54Waxing Gibbous11Thu
12Fri9:588.610:209.23:510.64:090.85:237:55Waxing Gibbous12Fri
13Sat10:488.511:039.24:420.54:540.95:227:56Waxing Gibbous13Sat
14Sun11:328.311:429.35:270.45:361.15:217:57Full Moon14Sun
15Mon12:138.26:090.46:151.35:207:58Full Moon15Mon
16Tue12:209.312:518.16:480.46:541.45:198:00Full Moon16Tue
17Wed12:579.21:298.07:270.47:321.55:188:01Full Moon17Wed
18Thu1:359.22:097.98:070.58:111.65:178:02Waning Gibbous18Thu
19Fri2:159.12:507.98:490.68:531.75:168:03Waning Gibbous19Fri
20Sat2:589.13:347.89:320.79:371.85:158:04Waning Gibbous20Sat
21Sun3:449.04:217.810:180.810:251.85:148:05Waning Gibbous21Sun
22Mon4:328.85:117.811:060.911:181.85:138:06Third Quarter22Mon
23Tue5:248.76:038.011:570.95:138:06Third Quarter23Tue
24Wed6:198.66:568.312:141.712:490.95:128:07Third Quarter24Wed
25Thu7:158.67:488.71:121.51:400.95:118:08Third Quarter25Thu
26Fri8:128.78:409.22:091.02:310.85:108:09Waning Crescent26Fri
27Sat9:078.89:309.83:040.53:210.65:108:10Waning Crescent27Sat
28Sun10:028.910:2110.33:590.04:110.55:098:11Waning Crescent28Sun
29Mon10:569.011:1110.74:52-0.55:020.35:098:12New Moon29Mon
30Tue11:489.25:44-1.05:520.25:088:13New Moon30Tue
31Wed12:0211.112:409.26:36-1.26:430.15:088:14New Moon31Wed
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 5:31 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 Waxing Gibbous (79% illuminated). This places Plum Island Sound, South End, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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