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 2h 27m 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 - Apr 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri2:1910.73:049.48:43-1.09:010.15:216:06Third Quarter1Fri
2Sat3:2010.24:099.09:46-0.510:050.65:196:07Third Quarter2Sat
3Sun5:269.76:158.711:520.06:177:08Third Quarter3Sun
4Mon6:349.37:228.612:130.91:000.36:167:10Third Quarter4Mon
5Tue7:429.18:248.71:241.02:060.46:147:11Waning Crescent5Tue
6Wed8:459.19:198.92:300.93:040.46:127:12Waning Crescent6Wed
7Thu9:409.110:079.23:280.63:530.46:107:13Waning Crescent7Thu
8Fri10:289.210:499.44:170.44:370.46:087:14Waning Crescent8Fri
9Sat11:119.211:279.55:000.15:150.46:077:16New Moon9Sat
10Sun11:519.15:400.05:510.56:057:17New Moon10Sun
11Mon12:039.612:299.16:17-0.16:240.66:037:18New Moon11Mon
12Tue12:379.61:058.96:510.06:570.76:027:19New Moon12Tue
13Wed1:099.51:408.87:250.07:300.96:007:20Waxing Crescent13Wed
14Thu1:439.42:168.58:000.28:061.15:587:22Waxing Crescent14Thu
15Fri2:179.32:548.38:380.38:451.35:567:23Waxing Crescent15Fri
16Sat2:569.13:368.19:190.59:281.45:557:24Waxing Crescent16Sat
17Sun3:409.04:238.010:040.710:161.55:537:25First Quarter17Sun
18Mon4:298.95:158.010:540.811:101.55:517:26First Quarter18Mon
19Tue5:248.86:098.211:480.75:507:28First Quarter19Tue
20Wed6:238.97:068.612:081.412:440.65:487:29First Quarter20Wed
21Thu7:259.18:049.11:091.01:420.35:477:30Waxing Gibbous21Thu
22Fri8:279.48:589.82:110.42:390.05:457:31Waxing Gibbous22Fri
23Sat9:259.89:4910.53:10-0.33:32-0.55:437:32Waxing Gibbous23Sat
24Sun10:2010.210:4011.14:05-1.04:23-0.85:427:33Full Moon24Sun
25Mon11:1410.411:3011.54:58-1.65:14-1.05:407:35Full Moon25Mon
26Tue12:0710.65:50-1.96:05-1.05:397:36Full Moon26Tue
27Wed12:2111.71:0110.56:43-2.06:57-0.95:377:37Waning Gibbous27Wed
28Thu1:1311.61:5410.37:36-1.97:50-0.65:367:38Waning Gibbous28Thu
29Fri2:0611.32:509.98:30-1.58:45-0.25:347:39Waning Gibbous29Fri
30Sat3:0210.83:499.59:27-1.09:440.35:337:41Waning Gibbous30Sat
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