Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 4:29 pm (0.2 ft)
Next high tide : in 4h 36m at 10:39 am (9.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:428.612:469.26:350.86:580.26:564:50Waxing Crescent1Thu
2Fri1:138.71:218.97:110.77:300.36:554:52Waxing Crescent2Fri
3Sat1:458.71:588.67:490.88:060.66:534:53Waxing Crescent3Sat
4Sun2:208.82:408.38:310.88:450.86:524:54First Quarter4Sun
5Mon3:008.83:278.09:180.89:301.06:514:56First Quarter5Mon
6Tue3:478.84:217.710:100.810:201.36:504:57First Quarter6Tue
7Wed4:398.95:227.511:090.811:181.46:494:59First Quarter7Wed
8Thu5:409.06:307.612:150.66:475:00Waxing Gibbous8Thu
9Fri6:469.37:397.912:231.31:230.36:465:01Waxing Gibbous9Fri
10Sat7:539.88:418.41:300.92:26-0.36:455:03Waxing Gibbous10Sat
11Sun8:5410.49:379.02:320.43:22-0.96:435:04Full Moon11Sun
12Mon9:5010.910:309.63:30-0.24:15-1.46:425:05Full Moon12Mon
13Tue10:4511.211:2010.14:26-0.85:05-1.76:405:07Full Moon13Tue
14Wed11:3711.25:19-1.25:53-1.86:395:08Full Moon14Wed
15Thu12:0910.512:2811.06:12-1.36:41-1.66:385:10Waning Gibbous15Thu
16Fri12:5710.61:2010.57:04-1.37:28-1.16:365:11Waning Gibbous16Fri
17Sat1:4510.52:129.87:57-1.08:17-0.56:355:12Waning Gibbous17Sat
18Sun2:3510.13:099.18:53-0.59:090.26:335:14Third Quarter18Sun
19Mon3:299.74:098.49:520.010:050.96:325:15Third Quarter19Mon
20Tue4:269.25:127.910:540.511:051.46:305:16Third Quarter20Tue
21Wed5:278.86:197.512:020.86:295:18Third Quarter21Wed
22Thu6:338.67:257.512:111.81:100.96:275:19Waning Crescent22Thu
23Fri7:368.68:227.61:181.82:100.86:255:20Waning Crescent23Fri
24Sat8:318.79:117.92:161.63:010.76:245:22Waning Crescent24Sat
25Sun9:199.09:548.13:051.33:440.46:225:23Waning Crescent25Sun
26Mon10:019.210:328.43:481.14:210.36:205:24New Moon26Mon
27Tue10:399.311:078.74:260.84:550.26:195:25New Moon27Tue
28Wed11:159.311:398.95:020.65:250.16:175:27New Moon28Wed
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 1:34 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 1% 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 New Moon (1% 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