Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 28, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 5:13 pm (1.5 ft)
Next high tide : in 47m at 11:30 am (8.1 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 - Dec 2076

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue2:158.92:2310.18:080.68:52-0.56:544:03First Quarter1Tue
2Wed3:148.93:259.89:090.79:51-0.36:554:03First Quarter2Wed
3Thu4:168.94:319.510:140.810:53-0.16:564:03First Quarter3Thu
4Fri5:199.15:399.311:220.711:550.06:574:03First Quarter4Fri
5Sat6:219.46:479.212:310.46:584:03Waxing Gibbous5Sat
6Sun7:209.87:509.212:570.11:360.06:594:02Waxing Gibbous6Sun
7Mon8:1510.18:489.31:550.12:35-0.47:004:02Waxing Gibbous7Mon
8Tue9:0510.49:419.32:470.13:27-0.77:014:02Full Moon8Tue
9Wed9:5310.510:319.33:360.14:16-0.97:024:02Full Moon9Wed
10Thu10:3810.511:189.24:230.35:03-0.97:034:02Full Moon10Thu
11Fri11:2210.35:080.45:47-0.77:044:02Full Moon11Fri
12Sat12:039.012:0510.15:510.76:30-0.57:054:03Waning Gibbous12Sat
13Sun12:468.812:469.86:330.97:12-0.27:054:03Waning Gibbous13Sun
14Mon1:298.51:299.47:161.27:550.27:064:03Waning Gibbous14Mon
15Tue2:138.32:149.08:011.48:390.57:074:03Waning Gibbous15Tue
16Wed2:598.13:028.78:491.69:250.87:084:04Third Quarter16Wed
17Thu3:488.03:538.49:401.810:111.07:084:04Third Quarter17Thu
18Fri4:368.14:468.110:331.810:591.27:094:04Third Quarter18Fri
19Sat5:258.25:418.011:281.711:481.37:094:05Third Quarter19Sat
20Sun6:148.46:377.912:241.57:104:05Waning Crescent20Sun
21Mon7:028.77:318.012:381.31:191.17:104:06Waning Crescent21Mon
22Tue7:489.18:218.21:271.22:090.67:114:06Waning Crescent22Tue
23Wed8:329.59:098.52:141.02:550.17:114:07Waning Crescent23Wed
24Thu9:1510.09:558.72:590.73:40-0.47:124:07New Moon24Thu
25Fri10:0010.410:419.03:440.44:25-0.87:124:08New Moon25Fri
26Sat10:4610.711:289.24:300.25:12-1.17:124:09New Moon26Sat
27Sun11:3410.95:180.06:00-1.37:134:09Waxing Crescent27Sun
28Mon12:179.312:2410.96:08-0.16:49-1.37:134:10Waxing Crescent28Mon
29Tue1:079.41:1610.77:00-0.17:41-1.27:134:11Waxing Crescent29Tue
30Wed2:009.42:1210.47:560.08:35-0.97:134:12Waxing Crescent30Wed
31Thu2:579.43:129.98:560.17:134:13First Quarter31Thu
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 2:21 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