Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 12, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 2:55 pm (0.4 ft)
Next high tide : in 1h 44m at 8:59 am (8.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:268.46:177.312:011.26:165:28Third Quarter1Mon
2Tue6:308.37:207.312:082.01:061.36:145:29Waning Crescent2Tue
3Wed7:318.48:157.51:132.02:041.16:135:30Waning Crescent3Wed
4Thu8:248.69:027.92:091.72:520.86:115:32Waning Crescent4Thu
5Fri9:108.99:438.32:571.43:320.56:095:33Waning Crescent5Fri
6Sat9:519.110:208.63:381.04:080.36:075:34New Moon6Sat
7Sun10:299.310:548.94:160.64:400.16:065:35New Moon7Sun
8Mon11:069.411:269.24:520.35:120.06:045:37New Moon8Mon
9Tue11:419.411:579.55:270.05:440.06:025:38New Moon9Tue
10Wed12:169.36:04-0.26:170.06:005:39Waxing Crescent10Wed
11Thu12:309.712:549.26:42-0.36:540.15:595:40Waxing Crescent11Thu
12Fri1:059.81:358.97:23-0.37:340.35:575:42Waxing Crescent12Fri
13Sat1:469.82:218.68:09-0.28:200.65:555:43Waxing Crescent13Sat
14Sun3:349.64:158.310:010.010:130.96:536:44First Quarter14Sun
15Mon4:299.55:178.011:010.211:131.16:526:45First Quarter15Mon
16Tue5:339.36:267.912:070.46:506:47First Quarter16Tue
17Wed6:449.37:398.112:201.21:180.36:486:48Waxing Gibbous17Wed
18Thu7:579.58:468.61:331.02:270.06:466:49Waxing Gibbous18Thu
19Fri9:049.89:459.22:440.53:28-0.46:446:50Waxing Gibbous19Fri
20Sat10:0410.210:379.83:46-0.14:21-0.86:436:52Waxing Gibbous20Sat
21Sun10:5810.411:2510.34:41-0.65:10-1.06:416:53Full Moon21Sun
22Mon11:4910.45:33-1.05:56-0.96:396:54Full Moon22Mon
23Tue12:1010.512:3710.36:21-1.26:40-0.76:376:55Full Moon23Tue
24Wed12:5410.61:239.97:08-1.27:23-0.46:356:56Waning Gibbous24Wed
25Thu1:3610.42:099.57:53-0.98:050.16:336:58Waning Gibbous25Thu
26Fri2:1810.12:558.98:39-0.58:490.76:326:59Waning Gibbous26Fri
27Sat3:029.63:458.49:270.09:361.26:307:00Waning Gibbous27Sat
28Sun3:519.14:387.910:190.610:271.76:287:01Third Quarter28Sun
29Mon4:458.65:357.511:151.011:242.06:267:02Third Quarter29Mon
30Tue5:438.36:357.412:151.46:247:04Third Quarter30Tue
31Wed6:458.17:367.412:252.21:171.56:237:05Third Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 11:57 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 spring phase. Tonight's moon is 9% 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 Waning Crescent (9% 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