42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

60°
H 65°
L 50°
NNW
6mph
High tide
5:10 am

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

TIDE TIMES for Saturday, October 3, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide : 11:18 am (0.8 ft)
Next high tide : in 1h 06m at 5:10 am (8.5 ft)
Sunset today : 6:21 pm
Sunrise tomorrow : 6:42 am
Moon phase : Third Quarter (49% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - Sep 1841

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed11:288.511:459.05:280.75:410.85:116:22Full Moon1Wed
2Thu12:058.86:040.76:210.65:126:20Full Moon2Thu
3Fri12:239.012:429.06:400.77:010.55:136:18Waning Gibbous3Fri
4Sat1:038.91:219.27:170.77:430.45:146:17Waning Gibbous4Sat
5Sun1:468.82:039.47:560.88:280.35:156:15Waning Gibbous5Sun
6Mon2:318.62:499.58:380.99:170.35:176:13Waning Gibbous6Mon
7Tue3:218.43:409.59:261.010:110.45:186:11Third Quarter7Tue
8Wed4:158.24:369.510:211.111:110.45:196:10Third Quarter8Wed
9Thu5:148.05:379.511:221.25:206:08Third Quarter9Thu
10Fri6:178.06:409.712:140.412:271.15:216:06Waning Crescent10Fri
11Sat7:208.37:439.81:170.21:310.85:226:04Waning Crescent11Sat
12Sun8:208.78:4410.02:160.02:320.45:236:02Waning Crescent12Sun
13Mon9:189.29:4110.23:12-0.33:31-0.15:246:01New Moon13Mon
14Tue10:119.710:3510.34:05-0.54:26-0.55:255:59New Moon14Tue
15Wed11:0110.111:2610.24:54-0.65:18-0.85:265:57New Moon15Wed
16Thu11:4810.45:41-0.66:08-0.95:275:55New Moon16Thu
17Fri12:1510.012:3410.46:27-0.46:57-0.85:285:54Waxing Crescent17Fri
18Sat1:039.61:2010.37:13-0.17:46-0.65:295:52Waxing Crescent18Sat
19Sun1:519.22:0710.08:000.38:35-0.35:315:50Waxing Crescent19Sun
20Mon2:398.82:569.78:480.79:260.25:325:48First Quarter20Mon
21Tue3:298.33:469.39:381.110:190.65:335:46First Quarter21Tue
22Wed4:217.94:408.910:311.411:141.05:345:45First Quarter22Wed
23Thu5:187.65:388.611:281.75:355:43First Quarter23Thu
24Fri6:167.56:368.512:121.212:261.85:365:41Waxing Gibbous24Fri
25Sat7:137.57:328.51:081.31:221.75:375:39Waxing Gibbous25Sat
26Sun8:057.78:248.52:011.22:161.55:385:37Waxing Gibbous26Sun
27Mon8:538.09:128.62:501.13:051.35:395:36Waxing Gibbous27Mon
28Tue9:378.39:568.73:341.03:511.05:405:34Waxing Gibbous28Tue
29Wed10:178.610:378.84:150.94:340.75:425:32Full Moon29Wed
30Thu10:549.011:178.84:530.85:140.55:435:30Full Moon30Thu
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 neap phase. Tonight's moon is 49% 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 minimum.

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 Third Quarter (49% illuminated). This places Plum Island Sound, South End, MA in a neap tide cycle, so tidal ranges are near their weekly minimum 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