Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 1h 51m at 9:31 pm (0.4 ft)
Next high tide (tomorrow) : 3:47 am (10.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed8:008.98:447.81:421.62:330.56:564:50Waxing Gibbous1Wed
2Thu8:519.09:337.92:361.53:220.46:554:51Waxing Gibbous2Thu
3Fri9:389.210:168.13:231.34:050.26:544:53Full Moon3Fri
4Sat10:209.310:568.24:051.24:450.16:534:54Full Moon4Sat
5Sun10:589.411:328.44:441.05:200.06:524:56Full Moon5Sun
6Mon11:349.45:200.95:520.06:504:57Full Moon6Mon
7Tue12:058.512:089.45:550.86:230.06:494:58Full Moon7Tue
8Wed12:378.612:429.36:290.76:540.16:485:00Waning Gibbous8Wed
9Thu1:088.71:169.17:050.77:270.26:465:01Waning Gibbous9Thu
10Fri1:418.81:548.87:440.68:020.46:455:02Waning Gibbous10Fri
11Sat2:168.92:368.58:260.68:420.66:445:04Waning Gibbous11Sat
12Sun2:578.93:248.29:140.69:280.96:425:05Third Quarter12Sun
13Mon3:449.04:187.910:070.610:191.16:415:06Third Quarter13Mon
14Tue4:379.05:207.711:060.611:171.26:405:08Third Quarter14Tue
15Wed5:389.26:297.712:120.56:385:09Waning Crescent15Wed
16Thu6:459.47:398.012:231.11:210.16:375:11Waning Crescent16Thu
17Fri7:539.98:428.51:310.82:26-0.46:355:12Waning Crescent17Fri
18Sat8:5510.49:399.12:340.33:23-0.96:345:13Waning Crescent18Sat
19Sun9:5210.910:329.63:33-0.34:17-1.46:325:15New Moon19Sun
20Mon10:4711.111:2310.14:28-0.75:08-1.76:315:16New Moon20Mon
21Tue11:4011.25:22-1.15:56-1.76:295:17New Moon21Tue
22Wed12:1210.412:3010.96:14-1.26:43-1.46:275:19Waxing Crescent22Wed
23Thu12:5910.41:2110.47:05-1.17:30-1.06:265:20Waxing Crescent23Thu
24Fri1:4610.32:139.87:58-0.88:18-0.36:245:21Waxing Crescent24Fri
25Sat2:369.93:089.08:52-0.49:090.46:235:23First Quarter25Sat
26Sun3:289.54:078.49:500.110:031.06:215:24First Quarter26Sun
27Mon4:239.05:097.810:510.611:011.66:195:25First Quarter27Mon
28Tue5:238.66:147.511:560.96:185:26First Quarter28Tue
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 12:39 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waxing Crescent (27% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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