Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 10:10 am (-0.5 ft)
Next high tide (tomorrow) : in 5h 30m at 3:47 am (10.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jan 2030

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:5410.48:399.01:320.22:24-0.87:134:13Waning Crescent1Tue
2Wed8:5310.79:379.32:330.03:21-1.17:134:14New Moon2Wed
3Thu9:4911.010:329.53:30-0.24:16-1.47:134:15New Moon3Thu
4Fri10:4311.111:249.74:25-0.45:08-1.57:134:16New Moon4Fri
5Sat11:3511.05:17-0.45:57-1.47:134:17New Moon5Sat
6Sun12:149.712:2510.76:08-0.46:45-1.27:134:18Waxing Crescent6Sun
7Mon1:019.61:1310.26:58-0.27:31-0.87:134:19Waxing Crescent7Mon
8Tue1:499.52:029.77:490.18:17-0.37:134:20Waxing Crescent8Tue
9Wed2:379.22:539.08:410.59:040.37:124:21First Quarter9Wed
10Thu3:269.03:478.59:350.89:530.87:124:22First Quarter10Thu
11Fri4:168.84:428.010:311.010:431.27:124:23First Quarter11Fri
12Sat5:078.65:407.611:291.211:361.57:114:25First Quarter12Sat
13Sun6:018.56:407.512:291.27:114:26Waxing Gibbous13Sun
14Mon6:568.67:387.512:331.71:281.17:104:27Waxing Gibbous14Mon
15Tue7:498.78:307.71:291.72:200.87:104:28Waxing Gibbous15Tue
16Wed8:379.09:167.92:191.53:050.57:094:29Waxing Gibbous16Wed
17Thu9:219.39:598.23:031.33:460.27:094:31Waxing Gibbous17Thu
18Fri10:029.610:388.53:441.04:24-0.17:084:32Full Moon18Fri
19Sat10:419.811:168.84:240.75:01-0.47:084:33Full Moon19Sat
20Sun11:2010.011:529.05:040.45:37-0.67:074:34Full Moon20Sun
21Mon11:5810.15:440.16:14-0.77:064:36Waning Gibbous21Mon
22Tue12:299.312:3910.16:26-0.16:53-0.87:054:37Waning Gibbous22Tue
23Wed1:089.61:219.97:10-0.27:34-0.77:054:38Waning Gibbous23Wed
24Thu1:509.72:099.67:58-0.38:20-0.57:044:40Waning Gibbous24Thu
25Fri2:379.83:029.28:50-0.29:10-0.27:034:41Third Quarter25Fri
26Sat3:299.84:018.89:48-0.110:050.17:024:42Third Quarter26Sat
27Sun4:269.75:058.510:500.011:050.47:014:44Third Quarter27Sun
28Mon5:299.76:158.311:580.07:004:45Waning Crescent28Mon
29Tue6:379.87:268.412:110.61:09-0.16:594:46Waning Crescent29Tue
30Wed7:4410.08:318.71:200.52:15-0.46:584:48Waning Crescent30Wed
31Thu8:4610.29:289.02:250.33:13-0.86:574:49Waning Crescent31Thu
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 6:58 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waxing Crescent (27% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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