Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 6:23 am (0.4 ft)
Next high tide : in 3h 48m at 11:54 pm (9.5 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:01 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:158.92:458.08:310.78:401.36:165:28Waning Gibbous1Sun
2Mon2:558.63:327.69:161.09:241.76:145:29Third Quarter2Mon
3Tue3:418.34:257.210:071.310:132.06:125:30Third Quarter3Tue
4Wed4:338.25:247.011:031.511:092.26:115:32Third Quarter4Wed
5Thu5:328.16:287.012:061.56:095:33Third Quarter5Thu
6Fri6:358.37:297.212:102.21:101.36:075:34Waning Crescent6Fri
7Sat7:358.68:227.71:131.92:060.86:055:36Waning Crescent7Sat
8Sun9:289.110:088.33:091.43:530.37:046:37Waning Crescent8Sun
9Mon10:179.710:518.93:590.74:36-0.37:026:38Waning Crescent9Mon
10Tue11:0210.111:329.64:460.15:18-0.77:006:39New Moon10Tue
11Wed11:4810.55:32-0.66:00-1.06:586:41New Moon11Wed
12Thu12:1410.212:3410.66:19-1.16:42-1.26:576:42New Moon12Thu
13Fri12:5610.61:2110.57:06-1.47:26-1.16:556:43Waxing Crescent13Fri
14Sat1:4010.82:0910.27:55-1.58:12-0.86:536:44Waxing Crescent14Sat
15Sun2:2610.83:019.78:46-1.39:01-0.36:516:46Waxing Crescent15Sun
16Mon3:1710.53:599.19:42-0.99:560.36:506:47First Quarter16Mon
17Tue4:1410.05:038.510:43-0.410:570.86:486:48First Quarter17Tue
18Wed5:199.66:138.111:510.16:466:49First Quarter18Wed
19Thu6:299.27:268.012:051.31:040.46:446:50First Quarter19Thu
20Fri7:439.18:368.11:191.42:170.46:426:52Waxing Gibbous20Fri
21Sat8:529.29:358.42:321.33:190.36:416:53Waxing Gibbous21Sat
22Sun9:509.310:258.83:340.94:120.16:396:54Waxing Gibbous22Sun
23Mon10:409.511:099.14:260.64:570.06:376:55Full Moon23Mon
24Tue11:259.511:489.35:120.35:360.06:356:56Full Moon24Tue
25Wed12:069.45:540.16:120.16:336:58Full Moon25Wed
26Thu12:249.412:449.26:320.06:460.36:316:59Full Moon26Thu
27Fri12:579.51:219.07:080.07:170.66:307:00Waning Gibbous27Fri
28Sat1:299.41:578.77:430.17:500.96:287:01Waning Gibbous28Sat
29Sun2:019.32:338.48:190.38:241.26:267:03Waning Gibbous29Sun
30Mon2:359.03:138.08:570.69:031.56:247:04Waning Gibbous30Mon
31Tue3:148.83:577.79:390.99:461.86:227:05Waning Gibbous31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 3:08 am — 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 South Harpswell, ME?

South Harpswell, ME is currently in a spring phase. Tonight's moon is 100% 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 South Harpswell, ME 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 South Harpswell, ME?

Tide predictions for South Harpswell, ME 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 South Harpswell, ME?

Tide data for South Harpswell, ME is sourced from NOAA Station #8417647. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8417647.

What is the moon phase in South Harpswell, ME tonight?

Tonight the moon over South Harpswell, ME is Full Moon (100% illuminated). This places South Harpswell, ME 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