Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 29, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 6:30 am (0.2 ft)
Next high tide (tomorrow) : in 5h 59m at 12:08 am (9.6 ft)
Sunset today : 8:07 pm
Sunrise tomorrow : 5:26 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jun 2077

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue8:088.18:368.72:001.72:151.45:008:15Waxing Gibbous1Tue
2Wed9:008.19:199.02:521.43:001.45:008:16Waxing Gibbous2Wed
3Thu9:478.29:599.33:381.03:411.34:598:17Waxing Gibbous3Thu
4Fri10:328.410:379.64:200.64:201.24:598:17Waxing Gibbous4Fri
5Sat11:148.511:159.85:000.35:001.24:598:18Full Moon5Sat
6Sun11:568.611:5510.05:400.05:401.14:588:19Full Moon6Sun
7Mon12:388.76:21-0.26:221.04:588:19Full Moon7Mon
8Tue12:3610.21:218.77:03-0.47:060.94:588:20Waning Gibbous8Tue
9Wed1:2010.32:068.87:48-0.57:530.94:588:21Waning Gibbous9Wed
10Thu2:0710.32:558.98:35-0.58:440.94:578:21Waning Gibbous10Thu
11Fri2:5810.23:488.99:26-0.49:400.94:578:22Waning Gibbous11Fri
12Sat3:5410.04:449.110:20-0.310:400.84:578:22Third Quarter12Sat
13Sun4:549.85:419.311:16-0.211:430.74:578:23Third Quarter13Sun
14Mon5:579.56:399.612:13-0.14:578:23Third Quarter14Mon
15Tue7:029.37:389.912:480.51:120.14:578:24Waning Crescent15Tue
16Wed8:079.28:3510.21:540.22:110.24:578:24Waning Crescent16Wed
17Thu9:109.29:2910.52:57-0.23:080.34:578:24Waning Crescent17Thu
18Fri10:089.210:2010.73:54-0.54:020.34:578:25Waning Crescent18Fri
19Sat11:029.211:1010.74:47-0.84:530.44:588:25New Moon19Sat
20Sun11:549.211:5910.65:38-0.85:420.64:588:25New Moon20Sun
21Mon12:439.16:27-0.86:300.74:588:25New Moon21Mon
22Tue12:4610.41:308.97:14-0.67:170.94:588:25Waxing Crescent22Tue
23Wed1:3110.12:158.87:58-0.38:021.14:598:26Waxing Crescent23Wed
24Thu2:169.83:018.68:430.08:491.44:598:26Waxing Crescent24Thu
25Fri3:029.43:478.59:270.39:371.64:598:26Waxing Crescent25Fri
26Sat3:499.04:338.410:120.610:271.75:008:26First Quarter26Sat
27Sun4:388.75:208.410:560.911:191.85:008:26First Quarter27Sun
28Mon5:298.36:068.511:411.25:018:26First Quarter28Mon
29Tue6:218.06:538.612:121.812:271.45:018:26First Quarter29Tue
30Wed7:167.97:418.81:061.71:151.65:028:25Waxing Gibbous30Wed
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 3:19 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 100% 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 (100% 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