Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 6:17 pm (1.6 ft)
Next high tide : in 5h 41m at 12:37 pm (8.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:01 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu10:409.310:589.84:270.04:440.36:376:21New Moon1Thu
2Fri11:229.611:439.65:100.05:290.16:386:19New Moon2Fri
3Sat12:019.75:490.26:110.06:406:18New Moon3Sat
4Sun12:249.412:379.76:250.46:500.06:416:16New Moon4Sun
5Mon1:049.11:129.67:000.77:280.26:426:14Waxing Crescent5Mon
6Tue1:428.81:469.47:351.18:050.46:436:12Waxing Crescent6Tue
7Wed2:218.42:229.18:111.48:450.76:446:10Waxing Crescent7Wed
8Thu3:028.13:038.88:511.79:291.16:466:09Waxing Crescent8Thu
9Fri3:487.73:508.69:352.010:191.36:476:07First Quarter9Fri
10Sat4:407.54:438.410:252.311:131.56:486:05First Quarter10Sat
11Sun5:367.35:408.311:202.46:496:03First Quarter11Sun
12Mon6:347.46:408.412:101.612:182.36:506:02First Quarter12Mon
13Tue7:307.67:398.71:081.41:192.06:526:00Waxing Gibbous13Tue
14Wed8:228.18:349.02:031.12:171.56:535:58Waxing Gibbous14Wed
15Thu9:098.89:249.52:510.63:090.86:545:57Waxing Gibbous15Thu
16Fri9:519.510:119.83:360.23:570.16:555:55Waxing Gibbous16Fri
17Sat10:3310.210:5810.14:19-0.24:44-0.66:565:53Full Moon17Sat
18Sun11:1610.711:4610.25:02-0.55:31-1.16:585:52Full Moon18Sun
19Mon12:0011.15:46-0.66:19-1.56:595:50Full Moon19Mon
20Tue12:3510.212:4611.36:32-0.57:09-1.57:005:48Waning Gibbous20Tue
21Wed1:2510.01:3511.27:21-0.38:01-1.37:015:47Waning Gibbous21Wed
22Thu2:189.72:2810.98:120.08:57-0.97:035:45Waning Gibbous22Thu
23Fri3:169.23:2710.49:090.59:58-0.57:045:44Third Quarter23Fri
24Sat4:208.84:339.910:120.911:050.07:055:42Third Quarter24Sat
25Sun5:288.55:439.511:211.27:075:41Third Quarter25Sun
26Mon6:368.56:539.312:130.312:321.37:085:39Third Quarter26Mon
27Tue7:418.78:009.21:200.41:431.27:095:38Waning Crescent27Tue
28Wed8:408.99:009.22:220.52:470.97:105:36Waning Crescent28Wed
29Thu9:319.39:539.23:150.43:410.57:125:35Waning Crescent29Thu
30Fri10:159.510:409.14:010.54:280.27:135:33Waning Crescent30Fri
31Sat10:559.711:239.04:420.65:110.17:145:32New Moon31Sat
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 3:27 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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