Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 05m at 12:29 pm (0.7 ft)
Next high tide : 6:51 pm (9.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:2610.39:119.02:050.32:55-0.86:554:51Waning Crescent1Thu
2Fri9:2410.610:079.33:040.03:51-1.26:544:52New Moon2Fri
3Sat10:1910.810:599.54:00-0.34:43-1.46:534:54New Moon3Sat
4Sun11:1110.811:489.64:53-0.45:33-1.46:524:55New Moon4Sun
5Mon12:0010.75:43-0.56:19-1.26:514:57Waxing Crescent5Mon
6Tue12:359.612:4710.36:32-0.47:04-0.96:494:58Waxing Crescent6Tue
7Wed1:209.51:349.87:20-0.17:48-0.46:484:59Waxing Crescent7Wed
8Thu2:049.32:229.38:080.28:320.16:475:01Waxing Crescent8Thu
9Fri2:509.03:128.78:580.59:180.66:455:02First Quarter9Fri
10Sat3:388.84:058.19:510.910:061.16:445:03First Quarter10Sat
11Sun4:278.55:017.710:461.110:571.66:435:05First Quarter11Sun
12Mon5:208.36:017.411:461.311:531.86:415:06First Quarter12Mon
13Tue6:178.37:027.412:481.36:405:07Waxing Gibbous13Tue
14Wed7:148.47:597.512:531.91:461.16:385:09Waxing Gibbous14Wed
15Thu8:078.68:497.71:491.72:370.86:375:10Waxing Gibbous15Thu
16Fri8:559.09:338.12:381.53:210.46:355:12Waxing Gibbous16Fri
17Sat9:389.310:148.43:211.14:000.16:345:13Full Moon17Sat
18Sun10:199.610:528.74:020.74:38-0.26:325:14Full Moon18Sun
19Mon10:589.911:299.14:420.45:14-0.56:315:16Full Moon19Mon
20Tue11:3710.15:210.05:51-0.76:295:17Full Moon20Tue
21Wed12:059.412:1710.26:03-0.36:29-0.86:285:18Waning Gibbous21Wed
22Thu12:439.712:5910.16:45-0.57:10-0.86:265:20Waning Gibbous22Thu
23Fri1:239.91:449.87:31-0.67:53-0.66:255:21Waning Gibbous23Fri
24Sat2:089.92:349.48:21-0.58:41-0.36:235:22Waning Gibbous24Sat
25Sun2:579.93:319.09:16-0.49:350.16:215:23Third Quarter25Sun
26Mon3:539.84:348.610:16-0.210:340.56:205:25Third Quarter26Mon
27Tue4:549.65:428.311:220.011:390.86:185:26Third Quarter27Tue
28Wed6:029.56:558.312:340.06:165:27Waning Crescent28Wed
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 3:40 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 transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 (30% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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