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

TIDE TIMES for Thursday, June 25, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 3:01 pm (1.3 ft)
Next high tide : in 4h 30m at 8:56 am (7.9 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:06 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 2045

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:249.06:18-0.66:280.45:367:43Full Moon1Mon
2Tue12:3510.21:098.87:04-0.57:120.65:357:44Full Moon2Tue
3Wed1:1910.01:538.67:49-0.37:560.95:337:46Waning Gibbous3Wed
4Thu2:029.82:368.38:340.08:411.15:327:47Waning Gibbous4Thu
5Fri2:469.53:218.19:190.39:271.45:317:48Waning Gibbous5Fri
6Sat3:339.24:087.910:060.610:151.65:307:49Waning Gibbous6Sat
7Sun4:218.94:577.810:550.911:071.75:287:50Third Quarter7Sun
8Mon5:128.65:497.711:451.15:277:51Third Quarter8Mon
9Tue6:068.46:437.812:021.812:381.25:267:52Third Quarter9Tue
10Wed7:028.27:368.012:591.81:301.35:257:53Third Quarter10Wed
11Thu7:578.18:268.21:541.62:201.35:247:54Waning Crescent11Thu
12Fri8:498.19:138.62:481.43:071.35:237:56Waning Crescent12Fri
13Sat9:408.19:588.93:381.03:531.35:227:57Waning Crescent13Sat
14Sun10:288.210:429.34:260.74:371.25:207:58Waning Crescent14Sun
15Mon11:148.411:259.75:120.35:191.15:197:59New Moon15Mon
16Tue11:598.55:570.06:021.05:188:00New Moon16Tue
17Wed12:0910.012:448.66:42-0.36:460.85:178:01New Moon17Wed
18Thu12:5410.31:318.77:28-0.57:330.75:178:02Waxing Crescent18Thu
19Fri1:4210.52:218.88:17-0.68:230.65:168:03Waxing Crescent19Fri
20Sat2:3410.53:138.89:08-0.69:170.65:158:04Waxing Crescent20Sat
21Sun3:2810.44:088.910:02-0.510:160.65:148:05Waxing Crescent21Sun
22Mon4:2510.25:059.010:57-0.411:170.65:138:06First Quarter22Mon
23Tue5:259.86:049.211:54-0.25:128:07First Quarter23Tue
24Wed6:279.57:049.412:200.512:520.05:128:08First Quarter24Wed
25Thu7:309.28:029.71:240.41:500.15:118:09Waxing Gibbous25Thu
26Fri8:319.08:589.92:260.22:450.35:108:09Waxing Gibbous26Fri
27Sat9:308.89:5110.03:250.03:390.55:108:10Waxing Gibbous27Sat
28Sun10:268.610:4110.04:20-0.24:300.65:098:11Waxing Gibbous28Sun
29Mon11:178.511:2810.05:12-0.25:180.85:088:12Full Moon29Mon
30Tue12:048.45:59-0.26:041.05:088:13Full Moon30Tue
31Wed12:129.812:488.26:440.06:481.15:078:14Full 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 11:58 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 spring phase. Tonight's moon is 84% 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 Waxing Gibbous (84% 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