Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 1h 13m at 2:43 pm (1.5 ft)
Next high tide : 9:02 pm (9.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:058.73:377.99:220.99:331.46:165:28First Quarter1Tue
2Wed3:528.44:307.510:131.210:221.86:145:29First Quarter2Wed
3Thu4:438.25:287.311:091.411:162.06:125:30First Quarter3Thu
4Fri5:398.16:307.212:101.46:115:32First Quarter4Fri
5Sat6:408.27:307.412:162.11:121.36:095:33Waxing Gibbous5Sat
6Sun7:388.58:227.71:171.92:070.96:075:34Waxing Gibbous6Sun
7Mon8:298.99:088.22:111.52:540.56:065:36Waxing Gibbous7Mon
8Tue9:169.49:508.72:581.03:360.06:045:37Waxing Gibbous8Tue
9Wed9:599.910:309.23:420.44:16-0.56:025:38Full Moon9Wed
10Thu10:4310.211:109.74:26-0.14:56-0.86:005:39Full Moon10Thu
11Fri11:2610.411:5010.15:10-0.65:36-1.05:595:41Full Moon11Fri
12Sat12:1010.55:55-1.06:18-1.15:575:42Waning Gibbous12Sat
13Sun12:3210.41:5610.37:41-1.28:02-0.96:556:43Waning Gibbous13Sun
14Mon2:1610.52:4510.08:30-1.28:49-0.66:536:44Waning Gibbous14Mon
15Tue3:0410.53:399.59:23-0.99:41-0.16:516:45Waning Gibbous15Tue
16Wed3:5710.24:409.010:21-0.610:380.46:506:47Third Quarter16Wed
17Thu4:579.85:468.511:25-0.211:420.86:486:48Third Quarter17Thu
18Fri6:039.56:588.312:340.16:466:49Third Quarter18Fri
19Sat7:159.38:098.312:511.11:470.26:446:50Waning Crescent19Sat
20Sun8:269.49:138.62:051.02:550.06:426:52Waning Crescent20Sun
21Mon9:299.610:098.93:110.83:53-0.26:416:53Waning Crescent21Mon
22Tue10:249.810:589.24:080.44:43-0.36:396:54Waning Crescent22Tue
23Wed11:139.911:419.54:580.15:28-0.46:376:55New Moon23Wed
24Thu11:589.85:44-0.16:08-0.36:356:56New Moon24Thu
25Fri12:219.612:399.76:26-0.26:45-0.16:336:58New Moon25Fri
26Sat12:589.61:189.47:05-0.27:200.26:326:59New Moon26Sat
27Sun1:329.51:569.17:43-0.17:540.56:307:00Waxing Crescent27Sun
28Mon2:079.42:358.78:200.18:300.96:287:01Waxing Crescent28Mon
29Tue2:429.13:158.39:000.49:081.36:267:02Waxing Crescent29Tue
30Wed3:218.94:007.99:430.79:511.66:247:04Waxing Crescent30Wed
31Thu4:058.64:507.610:301.010:391.96:227:05First Quarter31Thu
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 5:52 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 84% 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 Waxing Gibbous (84% 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