Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 29, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 21m at 5:45 am (0.4 ft)
Next high tide : 11:57 am (8.1 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 2009

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun1:219.81:489.07:37-0.37:500.26:155:28Waxing Crescent1Sun
2Mon2:039.82:378.78:25-0.28:380.46:145:30First Quarter2Mon
3Tue2:539.73:338.39:190.09:320.76:125:31First Quarter3Tue
4Wed3:509.54:378.010:200.210:331.06:105:32First Quarter4Wed
5Thu4:559.45:477.911:280.311:411.16:095:33First Quarter5Thu
6Fri6:069.47:018.112:400.26:075:35Waxing Gibbous6Fri
7Sat7:199.68:078.612:540.91:49-0.16:055:36Waxing Gibbous7Sat
8Sun9:2410.010:049.23:030.43:48-0.67:036:37Waxing Gibbous8Sun
9Mon10:2210.310:569.74:03-0.14:41-0.97:026:38Full Moon9Mon
10Tue11:1510.511:4410.14:58-0.65:29-1.17:006:40Full Moon10Tue
11Wed12:0510.55:49-1.06:14-1.06:586:41Full Moon11Wed
12Thu12:2810.412:5210.36:37-1.16:57-0.86:566:42Full Moon12Thu
13Fri1:1110.41:389.97:23-1.07:39-0.46:556:43Waning Gibbous13Fri
14Sat1:5210.22:239.48:08-0.78:200.16:536:45Waning Gibbous14Sat
15Sun2:349.93:098.88:53-0.39:040.76:516:46Waning Gibbous15Sun
16Mon3:189.43:588.29:410.29:501.26:496:47Waning Gibbous16Mon
17Tue4:068.94:517.810:330.710:411.76:476:48Third Quarter17Tue
18Wed5:008.55:497.411:291.111:372.06:466:50Third Quarter18Wed
19Thu5:588.26:507.312:301.46:446:51Third Quarter19Thu
20Fri7:008.17:517.312:392.21:341.46:426:52Third Quarter20Fri
21Sat8:028.28:467.61:432.12:321.36:406:53Waning Crescent21Sat
22Sun8:578.59:338.02:411.83:201.06:386:54Waning Crescent22Sun
23Mon9:448.810:148.53:311.34:000.76:366:56Waning Crescent23Mon
24Tue10:279.110:519.04:130.94:370.46:356:57Waning Crescent24Tue
25Wed11:079.311:269.44:530.45:120.26:336:58New Moon25Wed
26Thu11:469.45:32-0.15:470.06:316:59New Moon26Thu
27Fri12:019.812:259.56:11-0.56:23-0.16:297:00New Moon27Fri
28Sat12:3710.11:059.56:51-0.77:02-0.16:277:02Waxing Crescent28Sat
29Sun1:1510.31:479.47:33-0.87:440.06:267:03Waxing Crescent29Sun
30Mon1:5610.32:339.18:19-0.88:300.26:247:04Waxing Crescent30Mon
31Tue2:4310.23:258.89:10-0.69:210.56:227:05Waxing Crescent31Tue
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 8:51 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