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 3h 44m 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 - Mar 1991

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:2110.511:4610.25:05-0.95:31-1.16:175:27Full Moon1Fri
2Sat12:0710.25:52-0.96:14-0.86:155:29Waning Gibbous2Sat
3Sun12:2810.212:529.86:37-0.86:55-0.46:135:30Waning Gibbous3Sun
4Mon1:0910.01:369.37:22-0.57:360.26:115:31Waning Gibbous4Mon
5Tue1:509.62:228.78:07-0.18:190.76:105:33Waning Gibbous5Tue
6Wed2:349.23:128.18:560.49:051.26:085:34Third Quarter6Wed
7Thu3:228.84:057.79:480.89:561.76:065:35Third Quarter7Thu
8Fri4:168.45:037.310:441.210:522.06:045:36Third Quarter8Fri
9Sat5:148.26:057.211:461.411:532.16:035:38Third Quarter9Sat
10Sun6:168.27:067.312:501.46:015:39Waning Crescent10Sun
11Mon7:178.38:007.612:572.01:471.25:595:40Waning Crescent11Mon
12Tue8:108.68:468.01:531.72:340.95:575:41Waning Crescent12Tue
13Wed8:568.99:278.52:411.23:140.55:565:43Waning Crescent13Wed
14Thu9:389.210:049.03:230.83:500.25:545:44New Moon14Thu
15Fri10:189.510:409.44:030.34:25-0.15:525:45New Moon15Fri
16Sat10:579.711:159.84:43-0.25:01-0.35:505:46New Moon16Sat
17Sun11:379.711:5210.15:23-0.65:38-0.45:485:48New Moon17Sun
18Mon12:189.76:04-0.86:18-0.45:475:49Waxing Crescent18Mon
19Tue12:3010.31:019.56:47-0.97:00-0.25:455:50Waxing Crescent19Tue
20Wed1:1310.41:489.27:35-0.87:470.15:435:51Waxing Crescent20Wed
21Thu2:0110.22:428.88:27-0.68:400.45:415:52First Quarter21Thu
22Fri2:569.93:438.59:25-0.39:390.85:395:54First Quarter22Fri
23Sat3:599.64:518.310:300.110:451.05:385:55First Quarter23Sat
24Sun5:089.46:028.311:390.211:571.05:365:56First Quarter24Sun
25Mon6:219.47:128.512:510.25:345:57Waxing Gibbous25Mon
26Tue7:319.58:139.01:100.81:55-0.15:325:58Waxing Gibbous26Tue
27Wed8:339.79:079.52:160.32:51-0.35:306:00Waxing Gibbous27Wed
28Thu9:289.99:549.93:12-0.23:40-0.55:296:01Full Moon28Thu
29Fri10:1810.010:3910.14:03-0.54:24-0.55:276:02Full Moon29Fri
30Sat11:049.911:2010.24:50-0.85:07-0.35:256:03Full Moon30Sat
31Sun11:489.75:34-0.85:47-0.15:236:04Full Moon31Sun
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