Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 1:28 pm (0.7 ft)
Next high tide : in 30m at 7:30 am (8.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu8:458.59:0010.42:320.12:390.75:298:03Waxing Gibbous1Thu
2Fri9:468.89:5810.83:32-0.43:390.35:308:02Waxing Gibbous2Fri
3Sat10:439.210:5511.24:28-0.94:360.05:318:00Full Moon3Sat
4Sun11:399.611:5211.45:24-1.25:32-0.45:327:59Full Moon4Sun
5Mon12:349.96:17-1.56:28-0.65:337:58Full Moon5Mon
6Tue12:4711.41:2610.27:09-1.67:24-0.75:357:56Waning Gibbous6Tue
7Wed1:4111.22:1810.38:00-1.48:19-0.65:367:55Waning Gibbous7Wed
8Thu2:3610.83:1110.28:52-1.09:16-0.45:377:54Waning Gibbous8Thu
9Fri3:3210.24:0510.19:44-0.510:16-0.15:387:52Third Quarter9Fri
10Sat4:319.65:019.810:380.111:170.35:397:51Third Quarter10Sat
11Sun5:329.05:579.611:340.65:407:49Third Quarter11Sun
12Mon6:338.56:559.312:190.512:321.15:417:48Third Quarter12Mon
13Tue7:378.17:549.21:230.71:321.55:427:46Waning Crescent13Tue
14Wed8:388.08:509.22:260.82:321.65:447:45Waning Crescent14Wed
15Thu9:338.09:429.23:220.73:261.65:457:43Waning Crescent15Thu
16Fri10:218.110:289.44:110.64:131.55:467:42Waning Crescent16Fri
17Sat11:058.311:109.54:550.54:561.35:477:40New Moon17Sat
18Sun11:468.511:509.65:350.35:351.25:487:39New Moon18Sun
19Mon12:238.66:110.36:121.05:497:37New Moon19Mon
20Tue12:279.612:578.76:440.26:480.95:507:36New Moon20Tue
21Wed1:029.61:308.97:160.27:230.95:517:34Waxing Crescent21Wed
22Thu1:369.42:029.07:470.38:000.85:537:32Waxing Crescent22Thu
23Fri2:129.32:359.18:210.48:390.75:547:31Waxing Crescent23Fri
24Sat2:509.03:129.28:580.59:220.75:557:29Waxing Crescent24Sat
25Sun3:328.83:539.39:390.710:100.75:567:27First Quarter25Sun
26Mon4:218.54:419.410:250.911:030.75:577:26First Quarter26Mon
27Tue5:158.35:349.511:161.05:587:24First Quarter27Tue
28Wed6:148.26:339.612:010.612:131.15:597:22First Quarter28Wed
29Thu7:208.27:389.91:040.41:161.06:007:20Waxing Gibbous29Thu
30Fri8:278.58:4410.32:110.12:220.76:027:19Waxing Gibbous30Fri
31Sat9:308.99:4510.73:14-0.33:250.36:037:17Waxing Gibbous31Sat
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 10:29 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 20% 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 (20% 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