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 (tomorrow) : 3:44 am (0.7 ft)
Next high tide : in 5h 22m at 9:13 pm (9.1 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 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:518.25:480.65:571.35:377:42Full Moon1Tue
2Wed12:009.012:298.16:270.56:341.45:367:44Full Moon2Wed
3Thu12:369.11:078.17:050.47:111.45:347:45Full Moon3Thu
4Fri1:139.21:468.17:440.47:491.55:337:46Waning Gibbous4Fri
5Sat1:539.22:278.08:250.58:281.65:327:47Waning Gibbous5Sat
6Sun2:359.23:107.99:080.59:111.65:317:48Waning Gibbous6Sun
7Mon3:209.23:577.99:540.59:591.65:297:49Waning Gibbous7Mon
8Tue4:099.24:488.010:430.610:521.65:287:50Third Quarter8Tue
9Wed5:029.15:428.111:360.611:501.55:277:51Third Quarter9Wed
10Thu5:599.16:388.412:310.65:267:52Third Quarter10Thu
11Fri6:589.07:358.812:521.21:270.55:257:54Third Quarter11Fri
12Sat7:599.18:309.41:530.82:210.45:237:55Waning Crescent12Sat
13Sun8:589.29:249.92:530.33:140.25:227:56Waning Crescent13Sun
14Mon9:559.310:1610.43:50-0.34:070.15:217:57Waning Crescent14Mon
15Tue10:519.311:0810.84:46-0.84:580.05:207:58New Moon15Tue
16Wed11:449.411:5911.15:39-1.15:490.05:197:59New Moon16Wed
17Thu12:369.36:31-1.36:400.05:188:00New Moon17Thu
18Fri12:5011.11:279.27:23-1.27:310.15:178:01Waxing Crescent18Fri
19Sat1:4110.92:199.08:14-1.08:230.35:168:02Waxing Crescent19Sat
20Sun2:3310.63:128.89:06-0.79:170.65:158:03Waxing Crescent20Sun
21Mon3:2610.24:058.69:59-0.310:120.95:158:04Waxing Crescent21Mon
22Tue4:219.75:008.410:520.111:091.15:148:05First Quarter22Tue
23Wed5:169.25:558.311:460.55:138:06First Quarter23Wed
24Thu6:148.76:518.312:071.312:410.85:128:07First Quarter24Thu
25Fri7:118.47:458.41:061.41:341.05:118:08First Quarter25Fri
26Sat8:088.18:358.62:041.32:241.25:118:09Waxing Gibbous26Sat
27Sun9:018.09:228.72:571.23:121.45:108:10Waxing Gibbous27Sun
28Mon9:517.910:068.83:471.03:581.55:098:10Waxing Gibbous28Mon
29Tue10:377.810:479.04:340.84:411.65:098:11Waxing Gibbous29Tue
30Wed11:207.811:289.15:180.75:231.65:088:12Full Moon30Wed
31Thu12:017.86:000.66:031.65:088:13Full Moon31Thu
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 12:28 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