42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

71°
H -°
L 69°
SSW
13mph
Low tide
5:20 am

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

TIDE TIMES for Wednesday, September 9, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : in 6h 19m at 5:20 am (-0.3 ft)
Next high tide (tomorrow) : 11:27 am (9.3 ft)
Sunset today : 7:04 pm
Sunrise tomorrow : 6:16 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Oct 1881

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat4:578.45:199.611:080.911:540.25:445:28First Quarter1Sat
2Sun5:588.66:239.612:130.75:455:26Waxing Gibbous2Sun
3Mon7:008.97:259.712:540.11:160.45:465:25Waxing Gibbous3Mon
4Tue7:599.38:269.81:53-0.12:170.05:485:23Waxing Gibbous4Tue
5Wed8:569.89:239.92:48-0.33:15-0.45:495:21Waxing Gibbous5Wed
6Thu9:4910.210:1710.03:41-0.44:10-0.85:505:19Full Moon6Thu
7Fri10:3910.511:089.94:31-0.55:01-1.05:515:18Full Moon7Fri
8Sat11:2610.611:569.75:19-0.45:51-1.15:525:16Full Moon8Sat
9Sun12:1210.66:06-0.36:39-0.95:535:14Waning Gibbous9Sun
10Mon12:439.412:5810.46:520.07:26-0.75:545:13Waning Gibbous10Mon
11Tue1:309.11:4510.17:390.48:14-0.35:565:11Waning Gibbous11Tue
12Wed2:188.82:339.78:270.79:030.15:575:09Waning Gibbous12Wed
13Thu3:078.43:239.39:171.19:540.55:585:08Third Quarter13Thu
14Fri3:588.14:158.910:091.310:470.85:595:06Third Quarter14Fri
15Sat4:517.95:118.611:041.511:421.06:005:04Third Quarter15Sat
16Sun5:477.86:088.412:021.66:015:03Third Quarter16Sun
17Mon6:427.97:038.312:371.212:581.56:035:01Waning Crescent17Mon
18Tue7:348.17:568.31:291.21:511.36:045:00Waning Crescent18Tue
19Wed8:228.48:458.42:171.12:421.16:054:58Waning Crescent19Wed
20Thu9:078.79:318.53:031.13:290.86:064:57Waning Crescent20Thu
21Fri9:499.010:158.63:461.04:130.56:084:55New Moon21Fri
22Sat10:299.310:568.74:260.94:550.26:094:53New Moon22Sat
23Sun11:099.611:388.85:060.85:360.06:104:52New Moon23Sun
24Mon11:509.95:450.76:18-0.26:114:51New Moon24Mon
25Tue12:208.812:3210.06:260.77:02-0.36:124:49Waxing Crescent25Tue
26Wed1:058.81:1910.17:100.67:50-0.46:144:48Waxing Crescent26Wed
27Thu1:538.82:0810.17:590.68:40-0.36:154:46Waxing Crescent27Thu
28Fri2:458.83:0210.08:520.69:35-0.36:164:45First Quarter28Fri
29Sat3:408.84:009.99:510.710:32-0.16:174:43First Quarter29Sat
30Sun4:398.95:019.710:530.611:32-0.16:194:42First Quarter30Sun
31Mon5:409.16:059.511:580.56:204:41First Quarter31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

Collapse All
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 3% 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 New Moon (3% 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