42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

56°
H 69°
L 41°
W
4mph
High tide
7:18 am

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

TIDE TIMES for Monday, October 5, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 1:30 pm (0.9 ft)
Next high tide : in 35m at 7:18 am (8.4 ft)
Sunset today : 6:17 pm
Sunrise tomorrow : 6:45 am
Moon phase : Waning Crescent (27% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 1838

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue4:368.85:167.711:100.911:261.74:416:46First Quarter1Tue
2Wed5:348.56:137.712:061.14:406:47First Quarter2Wed
3Thu6:328.37:087.912:251.71:001.24:386:48Waxing Gibbous3Thu
4Fri7:288.27:588.11:221.61:501.34:376:50Waxing Gibbous4Fri
5Sat8:208.28:448.32:151.42:381.34:366:51Waxing Gibbous5Sat
6Sun9:088.29:278.63:041.23:221.34:346:52Waxing Gibbous6Sun
7Mon9:538.210:078.93:500.94:031.34:336:53Waxing Gibbous7Mon
8Tue10:358.210:459.14:330.64:421.34:326:54Full Moon8Tue
9Wed11:158.211:239.35:130.45:201.34:316:55Full Moon9Wed
10Thu11:568.35:540.25:581.34:306:56Full Moon10Thu
11Fri12:039.512:378.36:350.16:381.34:286:57Waning Gibbous11Fri
12Sat12:459.71:218.37:180.17:211.34:276:58Waning Gibbous12Sat
13Sun1:309.82:088.38:040.08:091.24:266:59Waning Gibbous13Sun
14Mon2:209.82:598.38:540.19:021.24:257:00Waning Gibbous14Mon
15Tue3:139.73:548.49:480.110:001.24:247:01Third Quarter15Tue
16Wed4:109.64:518.610:440.111:021.04:237:02Third Quarter16Wed
17Thu5:109.55:518.911:420.24:227:04Third Quarter17Thu
18Fri6:139.36:509.312:070.812:400.14:217:05Waning Crescent18Fri
19Sat7:159.37:469.71:100.41:360.14:207:06Waning Crescent19Sat
20Sun8:159.28:4110.12:100.02:300.14:197:07Waning Crescent20Sun
21Mon9:139.29:3310.53:08-0.43:220.14:187:08Waning Crescent21Mon
22Tue10:089.110:2310.64:02-0.74:130.24:177:09New Moon22Tue
23Wed10:599.011:1110.64:54-0.85:020.34:177:09New Moon23Wed
24Thu11:488.911:5910.55:43-0.85:500.54:167:10New Moon24Thu
25Fri12:358.76:31-0.66:370.74:157:11Waxing Crescent25Fri
26Sat12:4610.21:238.57:19-0.37:250.94:147:12Waxing Crescent26Sat
27Sun1:339.92:108.38:060.08:141.24:147:13Waxing Crescent27Sun
28Mon2:219.52:598.18:540.39:051.44:137:14Waxing Crescent28Mon
29Tue3:119.13:488.09:430.69:571.64:127:15First Quarter29Tue
30Wed4:028.84:398.010:330.910:521.74:127:16First Quarter30Wed
31Thu4:558.45:328.011:241.111:481.74:117:17First Quarter31Thu
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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waning Crescent (27% illuminated). This places Plum Island Sound, South End, MA in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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