42.7056’ N, 70.7890’ W

Plum Island Sound, South End, MA

66°
H 72°
L 50°
WNW
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 1h 53m 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 - Dec 1874

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue5:208.25:398.511:341.26:584:14Third Quarter1Tue
2Wed6:168.36:378.212:050.812:331.26:594:14Third Quarter2Wed
3Thu7:098.47:327.912:571.01:291.17:004:14Waning Crescent3Thu
4Fri7:588.58:247.81:471.12:211.07:014:14Waning Crescent4Fri
5Sat8:438.79:137.82:341.23:100.87:024:13Waning Crescent5Sat
6Sun9:268.89:587.73:191.33:550.67:034:13Waning Crescent6Sun
7Mon10:078.910:397.74:011.44:380.57:044:13New Moon7Mon
8Tue10:469.011:197.84:421.45:180.47:054:13New Moon8Tue
9Wed11:259.111:597.85:211.45:590.37:054:13New Moon9Wed
10Thu12:059.26:001.46:390.27:064:13New Moon10Thu
11Fri12:407.812:479.36:401.47:210.27:074:13Waxing Crescent11Fri
12Sat1:237.91:319.37:231.38:050.27:084:13Waxing Crescent12Sat
13Sun2:088.02:189.38:101.28:510.17:094:13Waxing Crescent13Sun
14Mon2:568.23:099.29:011.19:400.17:104:14Waxing Crescent14Mon
15Tue3:478.44:039.19:571.010:310.27:104:14First Quarter15Tue
16Wed4:418.75:018.910:560.811:250.27:114:14First Quarter16Wed
17Thu5:369.06:018.811:580.57:124:15First Quarter17Thu
18Fri6:339.57:028.712:210.212:590.17:124:15Waxing Gibbous18Fri
19Sat7:299.98:028.71:170.21:59-0.37:134:15Waxing Gibbous19Sat
20Sun8:2410.39:018.72:120.22:57-0.77:134:16Waxing Gibbous20Sun
21Mon9:1910.59:578.73:060.13:53-1.07:144:16Full Moon21Mon
22Tue10:1210.710:518.84:000.14:46-1.27:144:17Full Moon22Tue
23Wed11:0410.711:428.84:530.05:38-1.27:154:17Full Moon23Wed
24Thu11:5510.65:440.16:28-1.17:154:18Full Moon24Thu
25Fri12:328.712:4510.46:350.27:17-0.87:164:18Waning Gibbous25Fri
26Sat1:218.61:3410.07:260.38:06-0.57:164:19Waning Gibbous26Sat
27Sun2:118.52:249.68:170.58:54-0.27:164:20Waning Gibbous27Sun
28Mon3:008.43:149.19:090.89:420.17:174:20Third Quarter28Mon
29Tue3:498.44:068.610:021.010:310.57:174:21Third Quarter29Tue
30Wed4:408.34:598.210:571.111:210.87:174:22Third Quarter30Wed
31Thu5:318.35:547.811:531.17:174:23Third 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 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