42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

60°
H 62°
L 48°
NE
9mph
Low tide
12:16 pm

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

TIDE TIMES for Saturday, September 19, 2026
The tide is currently falling in Plum Island Sound, South End, MA.
Next low tide : in 1h 48m at 12:16 pm (1.9 ft)
Next high tide : 6:25 pm (8.5 ft)
Sunset today : 6:46 pm
Sunrise tomorrow : 6:27 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 1866

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:268.56:250.36:361.14:416:46Full Moon1Tue
2Wed12:379.31:068.47:050.37:151.24:396:48Waning Gibbous2Wed
3Thu1:179.31:478.47:460.47:561.24:386:49Waning Gibbous3Thu
4Fri1:599.22:318.38:290.48:401.34:376:50Waning Gibbous4Fri
5Sat2:449.23:188.39:140.59:271.44:356:51Waning Gibbous5Sat
6Sun3:329.14:078.310:020.610:181.44:346:52Third Quarter6Sun
7Mon4:249.05:008.410:540.611:141.34:336:53Third Quarter7Mon
8Tue5:199.05:548.611:480.64:326:54Third Quarter8Tue
9Wed6:169.06:499.012:131.112:420.54:306:55Third Quarter9Wed
10Thu7:149.17:449.51:110.71:360.34:296:56Waning Crescent10Thu
11Fri8:119.38:3710.02:070.22:290.14:286:57Waning Crescent11Fri
12Sat9:069.59:2910.53:03-0.43:22-0.24:276:59Waning Crescent12Sat
13Sun10:019.810:2111.03:57-0.94:13-0.44:267:00New Moon13Sun
14Mon10:549.911:1211.34:50-1.35:04-0.64:257:01New Moon14Mon
15Tue11:4610.05:41-1.55:55-0.64:247:02New Moon15Tue
16Wed12:0411.412:3810.06:33-1.66:48-0.64:237:03Waxing Crescent16Wed
17Thu12:5611.31:319.97:26-1.57:41-0.44:227:04Waxing Crescent17Thu
18Fri1:4911.02:259.78:19-1.28:36-0.14:217:05Waxing Crescent18Fri
19Sat2:4410.63:219.59:13-0.99:330.24:207:06First Quarter19Sat
20Sun3:3910.14:179.210:08-0.510:310.44:197:07First Quarter20Sun
21Mon4:379.65:159.111:04-0.111:310.74:187:08First Quarter21Mon
22Tue5:369.16:129.012:000.34:177:09First Quarter22Tue
23Wed6:358.87:089.012:300.812:550.64:177:10Waxing Gibbous23Wed
24Thu7:328.57:599.01:270.81:470.84:167:11Waxing Gibbous24Thu
25Fri8:258.48:479.12:210.72:370.94:157:12Waxing Gibbous25Fri
26Sat9:158.39:329.13:100.73:231.04:147:13Waxing Gibbous26Sat
27Sun10:008.210:139.23:570.64:071.14:147:13Full Moon27Sun
28Mon10:428.210:529.34:400.54:481.24:137:14Full Moon28Mon
29Tue11:218.211:319.35:200.45:281.24:127:15Full Moon29Tue
30Wed12:008.36:000.46:071.24:127:16Full Moon30Wed
31Thu12:109.412:408.36:400.36:471.24:117:17Waning Gibbous31Thu
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 neap phase. Tonight's moon is 58% 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 First Quarter (58% 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