Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 2:29 pm (0.7 ft)
Next high tide : in 4h 36m at 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 - Dec 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon8:219.08:488.32:041.22:390.86:534:04Waning Crescent1Mon
2Tue9:009.29:318.42:441.23:200.56:554:03Waning Crescent2Tue
3Wed9:379.510:128.53:221.13:580.26:564:03New Moon3Wed
4Thu10:139.710:528.53:591.04:360.06:574:03New Moon4Thu
5Fri10:509.811:318.54:361.05:15-0.26:584:03New Moon5Fri
6Sat11:2910.05:160.95:55-0.36:594:03New Moon6Sat
7Sun12:128.512:1010.05:570.96:37-0.47:004:02Waxing Crescent7Sun
8Mon12:548.512:5510.06:420.97:23-0.37:014:02Waxing Crescent8Mon
9Tue1:408.51:449.97:310.98:13-0.27:014:02Waxing Crescent9Tue
10Wed2:328.52:399.78:250.99:07-0.17:024:02First Quarter10Wed
11Thu3:288.73:399.59:240.910:030.07:034:02First Quarter11Thu
12Fri4:278.94:439.210:280.811:010.17:044:02First Quarter12Fri
13Sat5:269.25:499.111:340.67:054:03First Quarter13Sat
14Sun6:269.66:569.112:010.112:410.27:064:03Waxing Gibbous14Sun
15Mon7:2410.07:599.11:010.11:45-0.37:064:03Waxing Gibbous15Mon
16Tue8:1910.48:579.21:590.12:43-0.77:074:03Waxing Gibbous16Tue
17Wed9:1110.69:529.32:530.13:37-1.17:084:04Full Moon17Wed
18Thu10:0010.710:439.33:440.14:28-1.27:084:04Full Moon18Thu
19Fri10:4910.711:339.24:330.15:17-1.27:094:04Full Moon19Fri
20Sat11:3710.55:210.36:04-1.07:104:05Full Moon20Sat
21Sun12:209.012:2310.36:080.56:50-0.67:104:05Waning Gibbous21Sun
22Mon1:068.81:099.96:540.87:35-0.37:114:06Waning Gibbous22Mon
23Tue1:528.61:559.47:411.08:210.17:114:06Waning Gibbous23Tue
24Wed2:398.32:449.08:301.39:070.57:114:07Waning Gibbous24Wed
25Thu3:288.23:358.59:221.59:540.97:124:08Third Quarter25Thu
26Fri4:178.24:288.110:171.710:411.27:124:08Third Quarter26Fri
27Sat5:068.25:237.811:121.711:301.47:124:09Third Quarter27Sat
28Sun5:558.36:207.712:091.67:134:10Third Quarter28Sun
29Mon6:448.57:167.612:201.51:061.37:134:10Waning Crescent29Mon
30Tue7:328.78:097.71:101.61:571.07:134:11Waning Crescent30Tue
31Wed8:179.08:597.91:581.52:440.67:134:12Waning 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 11:32 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