Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 14m at 5:13 pm (1.5 ft)
Next high tide : 11:30 pm (9.5 ft)
Sunset today : 8:08 pm
Sunrise tomorrow : 5:25 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:579.74:408.510:21-0.110:360.96:145:29First Quarter1Mon
2Tue4:589.35:478.111:270.311:411.36:135:30First Quarter2Tue
3Wed6:048.96:557.912:370.56:115:31Waxing Gibbous3Wed
4Thu7:108.87:587.912:501.51:430.66:095:33Waxing Gibbous4Thu
5Fri8:118.98:528.11:541.52:390.56:085:34Waxing Gibbous5Fri
6Sat9:039.19:398.32:491.23:280.36:065:35Waxing Gibbous6Sat
7Sun9:489.210:208.53:351.04:090.26:045:36Full Moon7Sun
8Mon10:299.310:578.74:160.84:460.16:025:38Full Moon8Mon
9Tue11:079.411:318.94:540.65:190.16:015:39Full Moon9Tue
10Wed11:429.35:290.45:500.25:595:40Full Moon10Wed
11Thu12:029.012:159.26:020.46:200.35:575:41Full Moon11Thu
12Fri12:329.112:499.06:360.36:500.45:555:43Waning Gibbous12Fri
13Sat1:029.11:238.77:110.47:230.75:545:44Waning Gibbous13Sat
14Sun1:359.13:018.48:480.49:000.96:526:45Waning Gibbous14Sun
15Mon3:119.03:438.19:310.59:421.26:506:46Waning Gibbous15Mon
16Tue3:548.94:337.910:190.710:301.46:486:48Third Quarter16Tue
17Wed4:448.95:297.711:130.811:251.56:466:49Third Quarter17Wed
18Thu5:428.96:337.712:140.86:456:50Third Quarter18Thu
19Fri6:479.07:417.912:271.51:200.66:436:51Waning Crescent19Fri
20Sat7:569.48:468.41:351.22:270.16:416:53Waning Crescent20Sat
21Sun9:019.99:449.12:410.73:26-0.46:396:54Waning Crescent21Sun
22Mon10:0010.410:369.83:420.04:20-1.06:376:55Waning Crescent22Mon
23Tue10:5510.811:2610.44:38-0.75:10-1.46:356:56New Moon23Tue
24Wed11:4811.15:31-1.35:59-1.66:346:57New Moon24Wed
25Thu12:1510.912:4011.06:23-1.76:47-1.56:326:59New Moon25Thu
26Fri1:0211.11:3110.77:14-1.87:34-1.26:307:00Waxing Crescent26Fri
27Sat1:5011.12:2310.28:06-1.68:23-0.66:287:01Waxing Crescent27Sat
28Sun2:3810.73:179.68:59-1.29:140.06:267:02Waxing Crescent28Sun
29Mon3:3010.24:159.09:55-0.610:090.76:257:03First Quarter29Mon
30Tue4:279.65:168.410:550.011:091.36:237:05First Quarter30Tue
31Wed5:289.16:218.011:590.56:217:06First Quarter31Wed
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 8:21 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 99% 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 Full Moon (99% 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