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 2m 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 - Apr 2039

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri4:558.45:457.411:221.311:322.16:217:06First Quarter1Fri
2Sat5:508.26:447.412:191.46:197:07First Quarter2Sat
3Sun6:518.37:437.512:302.11:191.36:177:08First Quarter3Sun
4Mon7:528.58:388.01:321.92:181.06:157:10Waxing Gibbous4Mon
5Tue8:498.99:278.52:311.53:090.56:147:11Waxing Gibbous5Tue
6Wed9:409.410:119.23:240.83:550.06:127:12Waxing Gibbous6Wed
7Thu10:289.910:549.94:120.14:39-0.56:107:13Full Moon7Thu
8Fri11:1510.311:3710.54:59-0.65:22-0.86:087:14Full Moon8Fri
9Sat12:0210.55:46-1.16:06-1.06:077:16Full Moon9Sat
10Sun12:2010.912:5010.56:34-1.56:52-1.06:057:17Full Moon10Sun
11Mon1:0511.21:3910.37:23-1.77:39-0.86:037:18Waning Gibbous11Mon
12Tue1:5311.12:3110.08:14-1.68:29-0.46:017:19Waning Gibbous12Tue
13Wed2:4410.93:289.59:08-1.29:240.16:007:20Waning Gibbous13Wed
14Thu3:4010.44:319.110:08-0.810:240.65:587:22Third Quarter14Thu
15Fri4:4310.05:378.711:13-0.311:311.05:567:23Third Quarter15Fri
16Sat5:519.56:468.512:210.15:557:24Third Quarter16Sat
17Sun7:029.37:548.612:421.21:310.35:537:25Waning Crescent17Sun
18Mon8:129.28:568.81:551.12:360.35:517:26Waning Crescent18Mon
19Tue9:139.39:489.12:590.93:320.25:507:28Waning Crescent19Tue
20Wed10:079.310:349.43:550.54:200.25:487:29Waning Crescent20Wed
21Thu10:559.411:159.64:430.25:020.25:467:30New Moon21Thu
22Fri11:389.311:539.75:260.05:400.35:457:31New Moon22Fri
23Sat12:189.26:06-0.16:160.55:437:32New Moon23Sat
24Sun12:289.712:569.06:43-0.16:500.85:427:34New Moon24Sun
25Mon1:019.61:338.87:190.07:231.05:407:35Waxing Crescent25Mon
26Tue1:359.52:108.57:540.27:581.35:397:36Waxing Crescent26Tue
27Wed2:099.32:498.38:310.48:361.55:377:37Waxing Crescent27Wed
28Thu2:479.13:318.09:120.69:181.85:367:38Waxing Crescent28Thu
29Fri3:298.84:187.89:560.810:042.05:347:40First Quarter29Fri
30Sat4:178.75:097.710:451.010:562.15:337:41First Quarter30Sat
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