Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 16, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 26m at 7:09 am (-1.3 ft)
Next high tide : 1:26 pm (9.7 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:13 am
Moon phase : Waxing Crescent (7% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu12:0310.312:1811.06:05-0.76:35-1.36:386:20New Moon1Thu
2Fri12:5110.31:0411.16:51-0.67:24-1.46:396:18Waxing Crescent2Fri
3Sat1:4010.11:5311.17:39-0.48:16-1.26:406:16Waxing Crescent3Sat
4Sun2:339.72:4610.88:30-0.19:13-0.86:426:15Waxing Crescent4Sun
5Mon3:319.33:4610.49:270.410:14-0.46:436:13First Quarter5Mon
6Tue4:368.94:529.910:300.811:210.06:446:11First Quarter6Tue
7Wed5:448.66:019.611:381.06:456:09First Quarter7Wed
8Thu6:528.67:119.412:300.312:491.16:466:07Waxing Gibbous8Thu
9Fri7:578.78:179.41:370.41:591.06:486:06Waxing Gibbous9Fri
10Sat8:569.09:169.52:390.33:010.76:496:04Waxing Gibbous10Sat
11Sun9:469.310:089.53:320.33:540.46:506:02Waxing Gibbous11Sun
12Mon10:319.610:549.44:170.34:420.16:516:01Full Moon12Mon
13Tue11:119.711:379.34:590.45:250.06:525:59Full Moon13Tue
14Wed11:499.85:370.56:05-0.16:545:57Full Moon14Wed
15Thu12:189.112:249.76:130.86:420.06:555:56Full Moon15Thu
16Fri12:568.912:599.66:471.07:190.26:565:54Waning Gibbous16Fri
17Sat1:338.61:349.47:221.27:560.46:575:52Waning Gibbous17Sat
18Sun2:118.32:119.27:591.58:350.76:595:51Waning Gibbous18Sun
19Mon2:528.12:528.98:391.79:181.07:005:49Waning Gibbous19Mon
20Tue3:377.83:388.79:231.910:061.27:015:47Third Quarter20Tue
21Wed4:267.64:308.510:132.110:571.37:025:46Third Quarter21Wed
22Thu5:197.65:258.511:072.111:501.37:045:44Third Quarter22Thu
23Fri6:137.86:228.512:041.97:055:43Third Quarter23Fri
24Sat7:068.17:208.712:431.11:021.67:065:41Waning Crescent24Sat
25Sun7:578.68:169.01:370.92:011.07:075:40Waning Crescent25Sun
26Mon8:469.39:099.42:280.52:550.37:095:38Waning Crescent26Mon
27Tue9:3210.010:009.83:160.13:46-0.47:105:37Waning Crescent27Tue
28Wed10:1710.710:5010.04:02-0.24:35-1.07:115:35New Moon28Wed
29Thu11:0311.211:4010.24:49-0.55:25-1.57:135:34New Moon29Thu
30Fri11:5211.45:37-0.66:15-1.77:145:32New Moon30Fri
31Sat12:3210.112:4211.56:27-0.67:07-1.77:155:31Waxing Crescent31Sat
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 10:17 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 7% 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 Crescent (7% 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