Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 06m at 2:29 pm (0.7 ft)
Next high tide : 8:51 pm (10.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2060

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:579.23:298.89:110.59:311.25:308:02Waxing Crescent1Sun
2Mon3:428.74:118.89:510.910:191.35:318:01First Quarter2Mon
3Tue4:308.34:558.710:331.311:081.55:328:00First Quarter3Tue
4Wed5:207.95:408.611:171.65:337:58First Quarter4Wed
5Thu6:137.66:298.512:001.612:051.95:347:57First Quarter5Thu
6Fri7:107.47:238.612:561.612:572.15:357:56Waxing Gibbous6Fri
7Sat8:107.48:188.81:551.51:542.15:367:54Waxing Gibbous7Sat
8Sun9:067.59:109.12:511.22:481.95:377:53Waxing Gibbous8Sun
9Mon9:567.89:599.53:420.83:391.65:397:52Waxing Gibbous9Mon
10Tue10:428.210:469.94:280.44:271.15:407:50Full Moon10Tue
11Wed11:278.611:3210.35:120.05:130.75:417:49Full Moon11Wed
12Thu12:109.15:55-0.56:010.35:427:47Full Moon12Thu
13Fri12:1810.612:549.56:38-0.86:48-0.15:437:46Full Moon13Fri
14Sat1:0410.71:379.97:22-0.97:37-0.35:447:44Waning Gibbous14Sat
15Sun1:5210.62:2210.28:06-0.98:28-0.55:457:43Waning Gibbous15Sun
16Mon2:4210.33:1010.38:53-0.79:22-0.45:467:41Waning Gibbous16Mon
17Tue3:369.94:0210.39:43-0.310:19-0.35:477:39Third Quarter17Tue
18Wed4:349.44:5810.210:370.111:21-0.15:497:38Third Quarter18Wed
19Thu5:378.95:5810.011:350.65:507:36Third Quarter19Thu
20Fri6:448.57:039.812:260.112:371.05:517:35Waning Crescent20Fri
21Sat7:538.38:099.81:350.21:451.15:527:33Waning Crescent21Sat
22Sun8:598.49:139.82:430.22:511.15:537:31Waning Crescent22Sun
23Mon9:578.510:0910.03:440.03:501.05:547:30Waning Crescent23Mon
24Tue10:508.711:0010.04:37-0.14:420.85:557:28New Moon24Tue
25Wed11:378.911:4710.05:24-0.25:300.65:567:26New Moon25Wed
26Thu12:199.06:07-0.16:150.65:587:25New Moon26Thu
27Fri12:299.912:589.16:460.06:560.55:597:23New Moon27Fri
28Sat1:099.71:349.17:210.27:350.66:007:21Waxing Crescent28Sat
29Sun1:489.32:099.17:560.58:140.76:017:20Waxing Crescent29Sun
30Mon2:269.02:449.08:300.88:540.96:027:18Waxing Crescent30Mon
31Tue3:068.63:228.99:071.19:361.16:037:16Waxing Crescent31Tue
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 5:40 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 spring phase. Tonight's moon is 11% 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 Waning Crescent (11% 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