Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 12, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 2:55 pm (0.4 ft)
Next high tide : in 1h 44m at 8:59 am (8.9 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waning Crescent (9% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2025

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon6:257.26:358.412:071.712:102.36:047:15First Quarter1Mon
2Tue7:267.27:358.51:081.71:092.36:057:13Waxing Gibbous2Tue
3Wed8:267.48:328.82:091.52:092.16:067:12Waxing Gibbous3Wed
4Thu9:177.89:249.33:031.13:041.66:077:10Waxing Gibbous4Thu
5Fri10:038.310:109.73:500.63:521.16:087:08Waxing Gibbous5Fri
6Sat10:458.810:5510.14:320.14:380.56:097:06Full Moon6Sat
7Sun11:269.411:4010.45:12-0.35:240.06:107:04Full Moon7Sun
8Mon12:0710.05:53-0.66:10-0.56:127:03Full Moon8Mon
9Tue12:2510.512:4910.46:35-0.86:57-0.96:137:01Waning Gibbous9Tue
10Wed1:1110.51:3210.77:18-0.87:45-1.06:146:59Waning Gibbous10Wed
11Thu2:0010.22:1810.78:03-0.58:36-0.96:156:57Waning Gibbous11Thu
12Fri2:519.83:0810.68:52-0.29:31-0.66:166:55Waning Gibbous12Fri
13Sat3:489.34:0510.39:460.310:32-0.36:176:53Third Quarter13Sat
14Sun4:518.85:089.910:450.811:380.16:186:52Third Quarter14Sun
15Mon5:588.46:169.611:511.16:196:50Third Quarter15Mon
16Tue7:098.27:279.512:480.41:011.36:216:48Waning Crescent16Tue
17Wed8:178.38:349.62:000.42:121.26:226:46Waning Crescent17Wed
18Thu9:188.69:349.73:030.33:150.96:236:44Waning Crescent18Thu
19Fri10:108.910:269.83:570.14:100.66:246:42Waning Crescent19Fri
20Sat10:579.211:139.84:440.04:580.46:256:41New Moon20Sat
21Sun11:389.411:569.75:260.05:420.26:266:39New Moon21Sun
22Mon12:169.56:040.26:230.26:276:37New Moon22Mon
23Tue12:369.412:519.56:390.47:010.26:286:35New Moon23Tue
24Wed1:149.11:259.47:130.77:380.46:306:33Waxing Crescent24Wed
25Thu1:528.81:599.37:471.08:160.66:316:31Waxing Crescent25Thu
26Fri2:308.42:359.08:231.48:560.86:326:30Waxing Crescent26Fri
27Sat3:128.13:158.89:021.79:401.16:336:28Waxing Crescent27Sat
28Sun3:587.74:028.59:462.010:301.46:346:26First Quarter28Sun
29Mon4:507.44:558.410:362.211:251.66:356:24First Quarter29Mon
30Tue5:477.35:538.411:312.36:376:22First Quarter30Tue
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 11:57 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 9% 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 (9% 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