Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 6h 00m at 3:53 am (0.9 ft)
Next high tide (tomorrow) : 10:02 am (7.7 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:149.711:488.74:580.75:33-0.36:564:50Full Moon1Fri
2Sat11:509.85:350.56:07-0.46:544:52Full Moon2Sat
3Sun12:228.912:279.86:130.36:42-0.56:534:53Waning Gibbous3Sun
4Mon12:579.01:059.76:530.27:20-0.56:524:55Waning Gibbous4Mon
5Tue1:349.21:479.67:360.18:01-0.36:514:56Waning Gibbous5Tue
6Wed2:159.32:349.38:230.18:46-0.26:504:57Waning Gibbous6Wed
7Thu3:029.43:279.09:150.19:360.16:484:59Third Quarter7Thu
8Fri3:549.54:268.710:120.110:310.36:475:00Third Quarter8Fri
9Sat4:519.55:318.411:150.111:320.56:465:01Third Quarter9Sat
10Sun5:549.66:418.412:230.06:445:03Waning Crescent10Sun
11Mon7:019.87:508.612:380.51:32-0.36:435:04Waning Crescent11Mon
12Tue8:0610.28:528.91:450.32:35-0.76:425:06Waning Crescent12Tue
13Wed9:0610.59:499.32:460.03:32-1.16:405:07New Moon13Wed
14Thu10:0210.810:429.63:43-0.34:25-1.46:395:08New Moon14Thu
15Fri10:5510.911:319.84:37-0.65:15-1.46:375:10New Moon15Fri
16Sat11:4510.85:28-0.76:02-1.36:365:11New Moon16Sat
17Sun12:189.912:3310.56:17-0.76:47-1.06:345:12Waxing Crescent17Sun
18Mon1:039.81:2010.07:05-0.57:31-0.66:335:14Waxing Crescent18Mon
19Tue1:479.62:079.57:53-0.28:150.06:315:15Waxing Crescent19Tue
20Wed2:329.32:578.88:420.29:010.56:305:16Waxing Crescent20Wed
21Thu3:199.03:498.39:350.69:491.16:285:18First Quarter21Thu
22Fri4:098.74:457.810:290.910:411.56:275:19First Quarter22Fri
23Sat5:038.45:447.511:281.211:371.86:255:20First Quarter23Sat
24Sun6:008.36:467.412:311.36:245:22First Quarter24Sun
25Mon6:598.37:457.512:381.91:311.16:225:23Waxing Gibbous25Mon
26Tue7:558.58:367.81:371.82:240.96:205:24Waxing Gibbous26Tue
27Wed8:448.89:218.12:281.53:080.56:195:26Waxing Gibbous27Wed
28Thu9:289.210:018.43:121.13:480.26:175:27Waxing Gibbous28Thu
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 6:57 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 86% 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 (86% 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