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 4h 11m 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 - Apr 2007

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun11:418.611:588.65:340.75:540.86:257:08Full Moon1Sun
2Mon12:198.56:150.66:310.96:237:09Full Moon2Mon
3Tue12:338.812:568.46:530.57:061.06:217:10Full Moon3Tue
4Wed1:088.91:338.47:310.47:421.16:207:12Full Moon4Wed
5Thu1:449.02:118.28:100.48:191.26:187:13Waning Gibbous5Thu
6Fri2:229.02:528.18:500.58:571.46:167:14Waning Gibbous6Fri
7Sat3:029.03:357.99:320.69:391.56:157:15Waning Gibbous7Sat
8Sun3:478.94:227.710:190.710:241.66:137:16Waning Gibbous8Sun
9Mon4:358.95:127.611:090.811:161.76:117:17Third Quarter9Mon
10Tue5:288.86:087.612:040.96:107:18Third Quarter10Tue
11Wed6:268.87:067.712:141.71:020.96:087:20Third Quarter11Wed
12Thu7:268.98:048.11:161.51:590.76:067:21Waning Crescent12Thu
13Fri8:259.18:598.62:171.12:540.46:057:22Waning Crescent13Fri
14Sat9:239.39:529.33:150.63:460.16:037:23Waning Crescent14Sat
15Sun10:189.610:439.94:110.04:37-0.16:017:24Waning Crescent15Sun
16Mon11:129.811:3310.55:06-0.65:26-0.36:007:25New Moon16Mon
17Tue12:049.85:58-1.16:14-0.45:587:26New Moon17Tue
18Wed12:2110.912:559.86:49-1.47:02-0.45:567:28New Moon18Wed
19Thu1:1111.11:469.67:40-1.57:52-0.35:557:29Waxing Crescent19Thu
20Fri2:0111.12:389.48:32-1.38:430.05:537:30Waxing Crescent20Fri
21Sat2:5310.83:319.09:26-1.09:370.35:527:31Waxing Crescent21Sat
22Sun3:4810.44:268.610:21-0.510:340.75:507:32First Quarter22Sun
23Mon4:449.95:248.311:180.011:331.05:497:33First Quarter23Mon
24Tue5:449.46:258.112:170.45:477:34First Quarter24Tue
25Wed6:468.97:278.112:351.21:170.75:467:36First Quarter25Wed
26Thu7:488.68:248.21:381.32:140.95:447:37Waxing Gibbous26Thu
27Fri8:468.59:168.32:371.33:061.05:437:38Waxing Gibbous27Fri
28Sat9:398.310:038.53:311.13:541.15:417:39Waxing Gibbous28Sat
29Sun10:278.310:458.74:210.94:381.15:407:40Waxing Gibbous29Sun
30Mon11:118.211:238.95:060.85:191.25:387:41Full Moon30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

Common Questions About Plum Island Sound, South End, MA Tides

Show All
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