42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

67°
H -°
L 63°
WSW
6mph
Low tide
8:18 am

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

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 6h 10m at 8:18 am (0.3 ft)
Next high tide : 2:23 pm (9.7 ft)
Sunset today : 6:55 pm
Sunrise tomorrow : 6:22 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 1875

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:238.97:558.81:181.21:490.64:416:46Waning Crescent1Sat
2Sun8:199.18:469.42:140.72:390.44:406:47Waning Crescent2Sun
3Mon9:139.39:3510.03:080.13:280.24:386:48Waning Crescent3Mon
4Tue10:069.410:2410.64:01-0.54:170.04:376:50New Moon4Tue
5Wed10:589.511:1311.04:52-1.05:05-0.14:366:51New Moon5Wed
6Thu11:499.65:43-1.35:54-0.14:346:52New Moon6Thu
7Fri12:0311.212:409.56:35-1.46:44-0.14:336:53Waxing Crescent7Fri
8Sat12:5411.11:339.37:28-1.37:370.14:326:54Waxing Crescent8Sat
9Sun1:4810.92:289.08:22-1.08:330.34:316:55Waxing Crescent9Sun
10Mon2:4410.53:248.89:18-0.69:320.64:306:56First Quarter10Mon
11Tue3:4210.04:238.610:16-0.210:330.94:286:57First Quarter11Tue
12Wed4:429.55:258.511:150.211:361.04:276:58First Quarter12Wed
13Thu5:459.16:258.512:130.54:266:59First Quarter13Thu
14Fri6:478.87:228.612:391.11:100.74:257:01Waxing Gibbous14Fri
15Sat7:458.58:148.81:381.02:020.94:247:02Waxing Gibbous15Sat
16Sun8:398.39:018.92:330.92:501.04:237:03Waxing Gibbous16Sun
17Mon9:298.29:449.03:230.73:351.24:227:04Waxing Gibbous17Mon
18Tue10:138.110:239.14:090.64:171.34:217:05Full Moon18Tue
19Wed10:548.111:009.14:500.54:561.44:207:06Full Moon19Wed
20Thu11:328.011:379.25:300.55:341.54:197:07Full Moon20Thu
21Fri12:107.96:090.56:121.64:187:08Full Moon21Fri
22Sat12:159.212:497.96:480.56:511.74:177:09Waning Gibbous22Sat
23Sun12:559.21:307.97:290.67:321.74:177:10Waning Gibbous23Sun
24Mon1:389.22:147.88:120.68:151.74:167:11Waning Gibbous24Mon
25Tue2:239.13:007.98:570.79:031.74:157:11Waning Gibbous25Tue
26Wed3:119.03:498.09:440.79:551.74:147:12Third Quarter26Wed
27Thu4:029.04:418.210:340.710:511.54:147:13Third Quarter27Thu
28Fri4:578.95:358.511:260.711:501.34:137:14Third Quarter28Fri
29Sat5:558.86:298.912:200.74:137:15Third Quarter29Sat
30Sun6:538.87:229.412:500.81:120.64:127:16Waning Crescent30Sun
31Mon7:518.98:1510.01:480.32:050.54:117:17Waning Crescent31Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

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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 14% 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 Crescent (14% 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