Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 2:29 pm (0.7 ft)
Next high tide : in 1h 21m at 8:36 am (8.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:5510.91:2310.47:08-1.67:28-1.16:165:28Waning Gibbous1Tue
2Wed1:4410.82:179.98:01-1.38:20-0.76:145:29Waning Gibbous2Wed
3Thu2:3810.53:179.38:59-0.99:17-0.16:135:30Third Quarter3Thu
4Fri3:3810.14:228.810:02-0.410:190.46:115:32Third Quarter4Fri
5Sat4:439.75:318.511:09-0.111:270.86:095:33Third Quarter5Sat
6Sun5:529.46:418.412:210.26:075:34Waning Crescent6Sun
7Mon7:019.37:478.512:390.91:290.26:065:35Waning Crescent7Mon
8Tue8:059.48:448.81:470.82:290.06:045:37Waning Crescent8Tue
9Wed9:009.59:339.02:450.53:20-0.16:025:38Waning Crescent9Wed
10Thu9:499.610:179.33:350.24:04-0.26:005:39New Moon10Thu
11Fri10:339.610:579.44:200.04:44-0.25:595:40New Moon11Fri
12Sat11:149.611:339.55:01-0.15:21-0.15:575:42New Moon12Sat
13Sun11:529.45:39-0.15:540.15:555:43New Moon13Sun
14Mon12:079.512:289.26:15-0.16:270.35:535:44Waxing Crescent14Mon
15Tue12:409.41:038.96:500.17:000.65:525:45Waxing Crescent15Tue
16Wed1:139.31:408.67:270.37:360.85:505:47Waxing Crescent16Wed
17Thu1:499.12:208.28:060.58:151.15:485:48Waxing Crescent17Thu
18Fri2:298.93:057.98:490.78:591.45:465:49First Quarter18Fri
19Sat3:148.73:547.79:371.09:481.65:445:50First Quarter19Sat
20Sun4:058.54:497.610:291.110:421.75:435:52First Quarter20Sun
21Mon5:018.55:477.711:261.111:401.65:415:53First Quarter21Mon
22Tue6:018.66:478.012:260.95:395:54Waxing Gibbous22Tue
23Wed7:039.07:438.512:431.21:240.55:375:55Waxing Gibbous23Wed
24Thu8:019.48:349.21:420.72:17-0.15:355:56Waxing Gibbous24Thu
25Fri8:549.99:219.92:37-0.13:06-0.65:345:58Waxing Gibbous25Fri
26Sat9:4510.410:0810.63:28-0.83:53-1.05:325:59Full Moon26Sat
27Sun10:3510.710:5611.14:19-1.44:41-1.35:306:00Full Moon27Sun
28Mon11:2510.811:4411.45:09-1.85:29-1.45:286:01Full Moon28Mon
29Tue12:1610.76:00-2.06:17-1.35:266:02Waning Gibbous29Tue
30Wed12:3311.41:0910.46:51-1.97:08-0.95:246:04Waning Gibbous30Wed
31Thu1:2411.22:049.97:45-1.68:02-0.45:236:05Waning Gibbous31Thu
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 11:32 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 11% 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 (11% 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