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 2h 12m at 5:39 pm (1.6 ft)
Next high tide : 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 - Dec 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon1:469.01:5310.17:360.68:22-0.46:544:04Waning Gibbous1Mon
2Tue2:428.72:509.68:331.09:190.16:554:03Third Quarter2Tue
3Wed3:408.53:519.09:341.310:160.56:564:03Third Quarter3Wed
4Thu4:388.44:518.610:371.511:110.96:574:03Third Quarter4Thu
5Fri5:338.45:518.311:391.66:584:03Third Quarter5Fri
6Sat6:278.56:498.112:061.112:411.56:594:03Waning Crescent6Sat
7Sun7:178.67:448.012:581.31:371.27:004:02Waning Crescent7Sun
8Mon8:038.98:348.01:461.42:260.97:014:02Waning Crescent8Mon
9Tue8:449.19:198.12:291.43:090.67:024:02Waning Crescent9Tue
10Wed9:239.210:018.23:091.43:490.47:034:02New Moon10Wed
11Thu10:019.410:428.23:471.44:270.27:034:02New Moon11Thu
12Fri10:389.511:218.24:241.35:040.17:044:03New Moon12Fri
13Sat11:159.511:598.25:011.35:410.17:054:03New Moon13Sat
14Sun11:539.65:401.36:200.07:064:03Waxing Crescent14Sun
15Mon12:378.212:339.66:201.27:000.07:064:03Waxing Crescent15Mon
16Tue1:178.21:159.67:031.27:430.07:074:03Waxing Crescent16Tue
17Wed2:008.32:029.57:501.18:290.07:084:04Waxing Crescent17Wed
18Thu2:488.42:559.38:431.19:190.17:084:04First Quarter18Thu
19Fri3:408.73:529.19:400.910:110.17:094:04First Quarter19Fri
20Sat4:349.04:548.910:410.711:060.27:104:05First Quarter20Sat
21Sun5:309.45:588.811:450.47:104:05First Quarter21Sun
22Mon6:289.87:048.812:040.312:500.07:114:06Waxing Gibbous22Mon
23Tue7:2610.28:079.01:040.31:52-0.57:114:06Waxing Gibbous23Tue
24Wed8:2210.69:069.12:020.22:51-1.07:114:07Waxing Gibbous24Wed
25Thu9:1610.810:019.32:580.13:45-1.37:124:08Full Moon25Thu
26Fri10:0911.010:559.33:520.04:38-1.47:124:08Full Moon26Fri
27Sat11:0210.911:469.34:440.05:30-1.37:124:09Full Moon27Sat
28Sun11:5210.85:350.16:19-1.17:134:10Waning Gibbous28Sun
29Mon12:359.112:4210.46:250.27:08-0.87:134:11Waning Gibbous29Mon
30Tue1:249.01:3110.07:150.57:55-0.47:134:11Waning Gibbous30Tue
31Wed2:138.82:219.48:060.88:430.17:134:12Waning Gibbous31Wed
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 8:46 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 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