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

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in Plum Island Sound, South End, MA.
Next low tide (tomorrow) : 12:10 am (0.8 ft)
Next high tide : in 5h 22m at 5:46 pm (9.1 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:12 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8441241
Common Questions About Tides

Plum Island Sound, South End, MA Tides - May 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:348.56:127.512:091.25:367:43Third Quarter1Mon
2Tue6:298.37:077.712:242.01:031.35:357:44Third Quarter2Tue
3Wed7:258.38:007.91:211.81:551.35:347:46Third Quarter3Wed
4Thu8:208.38:508.32:171.62:441.25:327:47Waning Crescent4Thu
5Fri9:128.49:378.83:101.23:311.15:317:48Waning Crescent5Fri
6Sat10:038.510:229.34:000.84:170.95:307:49Waning Crescent6Sat
7Sun10:518.711:079.84:480.35:010.85:297:50New Moon7Sun
8Mon11:398.911:5210.25:35-0.25:450.65:277:51New Moon8Mon
9Tue12:269.06:22-0.66:300.55:267:52New Moon9Tue
10Wed12:3810.61:149.07:10-0.97:170.45:257:53New Moon10Wed
11Thu1:2610.82:059.08:00-0.98:070.45:247:54Waxing Crescent11Thu
12Fri2:1810.82:579.08:53-0.99:010.45:237:55Waxing Crescent12Fri
13Sat3:1210.73:538.99:47-0.79:590.55:227:56Waxing Crescent13Sat
14Sun4:1010.44:518.810:44-0.511:000.65:217:58First Quarter14Sun
15Mon5:1010.05:528.911:43-0.25:207:59First Quarter15Mon
16Tue6:139.66:549.012:040.712:430.05:198:00First Quarter16Tue
17Wed7:179.37:549.21:090.61:420.25:188:01Waxing Gibbous17Wed
18Thu8:209.08:519.42:130.52:380.35:178:02Waxing Gibbous18Thu
19Fri9:198.89:439.53:120.43:300.55:168:03Waxing Gibbous19Fri
20Sat10:148.610:319.64:070.24:200.75:158:04Waxing Gibbous20Sat
21Sun11:048.411:169.64:580.15:060.95:148:05Full Moon21Sun
22Mon11:498.311:579.65:440.15:501.15:138:06Full Moon22Mon
23Tue12:318.26:270.26:311.35:128:07Full Moon23Tue
24Wed12:369.51:108.07:080.37:111.45:128:08Full Moon24Wed
25Thu1:169.41:507.97:480.47:511.55:118:08Waning Gibbous25Thu
26Fri1:569.22:317.98:300.58:331.65:108:09Waning Gibbous26Fri
27Sat2:389.13:147.89:120.79:181.75:108:10Waning Gibbous27Sat
28Sun3:239.03:597.89:570.810:041.85:098:11Waning Gibbous28Sun
29Mon4:108.84:467.810:430.910:551.85:098:12Third Quarter29Mon
30Tue4:598.65:367.911:311.011:481.85:088:13Third Quarter30Tue
31Wed5:518.46:278.112:201.15:078:14Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8441241)

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

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What time does the tide turn (slack tide) in Plum Island Sound, South End, MA today?

Slack tide in Plum Island Sound, South End, MA is approximately 8:58 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 52% 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 (52% 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