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 51m at 2:23 am (0.0 ft)
Next high tide : 8:36 am (8.5 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 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:057.77:238.712:531.412:561.85:288:03Waning Crescent1Mon
2Tue8:037.68:178.91:521.41:521.85:298:02Waning Crescent2Tue
3Wed8:587.89:089.12:471.22:461.75:318:01Waning Crescent3Wed
4Thu9:468.09:549.43:350.93:341.45:328:00Waning Crescent4Thu
5Fri10:318.310:389.84:190.54:191.15:337:58New Moon5Fri
6Sat11:138.711:2010.04:590.15:020.75:347:57New Moon6Sat
7Sun11:549.15:39-0.25:450.35:357:56New Moon7Sun
8Mon12:0210.312:349.56:18-0.56:290.05:367:54New Moon8Mon
9Tue12:4510.41:149.96:59-0.77:14-0.35:377:53Waxing Crescent9Tue
10Wed1:2810.41:5610.17:40-0.88:01-0.45:387:51Waxing Crescent10Wed
11Thu2:1410.32:4110.38:25-0.78:51-0.55:397:50Waxing Crescent11Thu
12Fri3:0410.03:3110.49:13-0.59:46-0.45:417:49First Quarter12Fri
13Sat3:599.64:2510.310:05-0.210:44-0.25:427:47First Quarter13Sat
14Sun4:599.25:2410.211:010.111:470.05:437:46First Quarter14Sun
15Mon6:038.96:2710.112:020.45:447:44First Quarter15Mon
16Tue7:118.77:3310.012:530.11:070.65:457:43Waxing Gibbous16Tue
17Wed8:198.78:3910.12:020.02:150.65:467:41Waxing Gibbous17Wed
18Thu9:228.99:3910.33:07-0.23:180.45:477:39Waxing Gibbous18Thu
19Fri10:189.210:3310.44:04-0.44:150.25:487:38Full Moon19Fri
20Sat11:099.411:2310.44:55-0.55:070.05:507:36Full Moon20Sat
21Sun11:569.65:42-0.55:550.05:517:35Full Moon21Sun
22Mon12:1110.312:399.76:25-0.56:400.05:527:33Full Moon22Mon
23Tue12:5510.11:209.77:06-0.27:230.15:537:31Waning Gibbous23Tue
24Wed1:369.71:599.67:440.08:050.35:547:30Waning Gibbous24Wed
25Thu2:189.32:389.48:220.48:470.55:557:28Waning Gibbous25Thu
26Fri3:008.93:199.29:010.89:320.85:567:26Waning Gibbous26Fri
27Sat3:458.54:028.99:431.210:191.15:577:25Third Quarter27Sat
28Sun4:348.14:508.710:291.511:101.35:597:23Third Quarter28Sun
29Mon5:267.85:428.611:181.76:007:21Third Quarter29Mon
30Tue6:217.66:368.612:041.512:111.96:017:20Third Quarter30Tue
31Wed7:197.67:338.71:011.51:071.96:027:18Waning Crescent31Wed
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 5:29 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 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