Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 1:19 am (0.3 ft)
Next high tide : in 3h 53m at 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 - Oct 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:389.72:5310.18:370.29:12-0.26:386:20Waning Gibbous1Tue
2Wed3:309.23:449.69:270.710:060.36:396:19Third Quarter2Wed
3Thu4:258.74:399.210:211.211:030.76:406:17Third Quarter3Thu
4Fri5:228.35:378.811:181.56:416:15Third Quarter4Fri
5Sat6:208.16:368.612:011.012:171.76:426:13Third Quarter5Sat
6Sun7:188.17:348.61:001.21:181.76:446:11Waning Crescent6Sun
7Mon8:128.28:298.71:581.22:161.66:456:10Waning Crescent7Mon
8Tue9:028.59:188.92:481.03:061.36:466:08Waning Crescent8Tue
9Wed9:458.810:029.13:320.83:500.96:476:06Waning Crescent9Wed
10Thu10:249.210:439.34:110.64:300.66:486:04New Moon10Thu
11Fri11:019.511:229.44:470.55:070.26:506:03New Moon11Fri
12Sat11:369.75:220.35:450.06:516:01New Moon12Sat
13Sun12:009.412:119.95:570.36:22-0.26:525:59New Moon13Sun
14Mon12:389.512:4710.16:340.27:02-0.46:535:58Waxing Crescent14Mon
15Tue1:179.41:2610.27:140.27:44-0.46:545:56Waxing Crescent15Tue
16Wed1:599.32:0810.27:560.38:29-0.46:565:54Waxing Crescent16Wed
17Thu2:459.22:5610.18:430.49:20-0.36:575:53Waxing Crescent17Thu
18Fri3:379.03:519.99:360.610:16-0.16:585:51First Quarter18Fri
19Sat4:368.94:529.810:350.711:170.06:595:49First Quarter19Sat
20Sun5:398.95:579.711:390.77:015:48First Quarter20Sun
21Mon6:449.17:059.712:200.012:460.67:025:46Waxing Gibbous21Mon
22Tue7:489.48:129.81:250.01:540.37:035:45Waxing Gibbous22Tue
23Wed8:489.99:1410.12:28-0.22:57-0.27:055:43Waxing Gibbous23Wed
24Thu9:4310.310:1010.23:24-0.53:55-0.77:065:42Waxing Gibbous24Thu
25Fri10:3310.711:0310.34:16-0.64:47-1.07:075:40Full Moon25Fri
26Sat11:2110.911:5310.25:05-0.65:37-1.27:085:39Full Moon26Sat
27Sun11:0810.911:4110.04:52-0.55:25-1.26:104:37Full Moon27Sun
28Mon11:5310.75:38-0.26:11-0.96:114:36Waning Gibbous28Mon
29Tue12:289.712:3710.46:230.26:57-0.66:124:34Waning Gibbous29Tue
30Wed1:149.31:229.97:080.67:43-0.16:144:33Waning Gibbous30Wed
31Thu2:018.92:099.57:541.08:320.36:154:31Waning 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 10:05 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