Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 43m at 6:24 pm (-0.1 ft)
Next high tide (tomorrow) : 12:43 am (11.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2064

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:159.32:438.98:270.48:451.05:308:02Waning Gibbous1Fri
2Sat2:558.93:218.99:030.79:271.25:318:01Waning Gibbous2Sat
3Sun3:378.54:018.89:411.110:131.35:328:00Third Quarter3Sun
4Mon4:238.14:448.710:231.411:011.55:337:58Third Quarter4Mon
5Tue5:137.75:308.611:071.711:531.65:347:57Third Quarter5Tue
6Wed6:067.56:218.611:561.95:357:56Third Quarter6Wed
7Thu7:047.37:168.712:491.612:502.05:367:54Waning Crescent7Thu
8Fri8:047.48:149.01:501.41:482.05:377:53Waning Crescent8Fri
9Sat9:017.69:099.42:481.12:451.75:397:51Waning Crescent9Sat
10Sun9:538.010:009.93:400.63:391.25:407:50Waning Crescent10Sun
11Mon10:418.510:4910.34:270.14:290.75:417:49New Moon11Mon
12Tue11:279.111:3710.75:13-0.45:190.15:427:47New Moon12Tue
13Wed12:129.75:58-0.96:09-0.35:437:46New Moon13Wed
14Thu12:2610.912:5810.26:42-1.16:59-0.75:447:44Waxing Crescent14Thu
15Fri1:1410.91:4410.57:28-1.27:50-0.85:457:43Waxing Crescent15Fri
16Sat2:0410.62:3110.78:14-1.08:42-0.85:467:41Waxing Crescent16Sat
17Sun2:5710.23:2210.69:03-0.69:39-0.65:487:39First Quarter17Sun
18Mon3:549.74:1710.49:56-0.110:39-0.35:497:38First Quarter18Mon
19Tue4:569.15:1710.110:530.411:430.05:507:36First Quarter19Tue
20Wed6:018.66:209.811:550.95:517:35First Quarter20Wed
21Thu7:098.37:279.612:510.31:011.25:527:33Waxing Gibbous21Thu
22Fri8:178.28:339.62:010.42:101.35:537:31Waxing Gibbous22Fri
23Sat9:198.39:329.73:050.33:131.25:547:30Waxing Gibbous23Sat
24Sun10:138.510:249.84:010.24:071.05:557:28Waxing Gibbous24Sun
25Mon11:018.711:119.84:490.14:560.85:577:26Full Moon25Mon
26Tue11:438.911:549.75:320.15:400.75:587:25Full Moon26Tue
27Wed12:229.16:100.16:200.65:597:23Full Moon27Wed
28Thu12:339.612:579.16:450.36:580.66:007:21Full Moon28Thu
29Fri1:109.41:309.27:170.47:350.66:017:19Waning Gibbous29Fri
30Sat1:469.12:039.17:490.78:110.76:027:18Waning Gibbous30Sat
31Sun2:238.72:379.08:231.08:500.96:037:16Waning Gibbous31Sun
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 9:33 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 2% 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 (2% 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