Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, June 24, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 2:40 am (0.8 ft)
Next high tide : in 2h 59m at 8:11 pm (9.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : Waxing Gibbous (76% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2015

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:1311.31:4011.17:23-1.57:49-1.46:037:16Waning Gibbous1Tue
2Wed2:0611.02:3211.08:14-1.38:44-1.26:047:14Waning Gibbous2Wed
3Thu3:0110.53:2710.89:07-0.89:43-0.86:057:13Third Quarter3Thu
4Fri4:019.94:2510.410:03-0.310:45-0.46:067:11Third Quarter4Fri
5Sat5:049.45:2710.011:040.211:500.06:087:09Third Quarter5Sat
6Sun6:089.06:319.712:070.76:097:07Third Quarter6Sun
7Mon7:148.77:369.512:560.31:130.96:107:05Waning Crescent7Mon
8Tue8:188.68:379.52:030.42:181.06:117:04Waning Crescent8Tue
9Wed9:158.79:329.63:020.33:160.96:127:02Waning Crescent9Wed
10Thu10:058.910:209.63:540.34:060.76:137:00Waning Crescent10Thu
11Fri10:509.111:049.64:390.24:510.66:146:58New Moon11Fri
12Sat11:309.211:449.65:190.25:320.56:156:56New Moon12Sat
13Sun12:079.35:550.26:090.46:166:55New Moon13Sun
14Mon12:229.512:419.36:290.36:450.46:186:53New Moon14Mon
15Tue12:589.41:159.37:010.47:190.46:196:51Waxing Crescent15Tue
16Wed1:339.21:479.37:340.67:550.56:206:49Waxing Crescent16Wed
17Thu2:098.92:219.28:080.88:320.66:216:47Waxing Crescent17Thu
18Fri2:468.72:589.18:451.09:130.86:226:45Waxing Crescent18Fri
19Sat3:288.43:409.09:261.29:590.96:236:44First Quarter19Sat
20Sun4:148.24:289.010:131.310:500.96:246:42First Quarter20Sun
21Mon5:068.15:219.011:041.411:450.96:266:40First Quarter21Mon
22Tue6:028.16:199.112:001.36:276:38First Quarter22Tue
23Wed7:028.37:219.412:430.71:011.16:286:36Waxing Gibbous23Wed
24Thu8:038.88:239.91:440.42:030.66:296:34Waxing Gibbous24Thu
25Fri9:009.49:2110.32:43-0.13:030.06:306:32Waxing Gibbous25Fri
26Sat9:5310.010:1610.83:37-0.63:59-0.66:316:31Full Moon26Sat
27Sun10:4410.711:0911.14:29-1.14:52-1.26:326:29Full Moon27Sun
28Mon11:3511.15:19-1.45:45-1.66:346:27Full Moon28Mon
29Tue12:0211.212:2511.46:09-1.56:38-1.86:356:25Full Moon29Tue
30Wed12:5511.11:1611.46:59-1.37:31-1.76:366:23Waning 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 11:25 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 transitional phase. Tonight's moon is 76% 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 Gibbous (76% 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