Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 12:55 pm (1.0 ft)
Next high tide : in 22m at 6:49 am (8.6 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:249.39:4111.03:09-0.63:21-0.15:298:03Waning Crescent1Wed
2Thu10:239.610:3911.24:08-1.04:19-0.45:308:02New Moon2Thu
3Fri11:209.911:3511.45:04-1.45:16-0.65:318:01New Moon3Fri
4Sat12:1410.25:57-1.56:11-0.75:328:00New Moon4Sat
5Sun12:2911.41:0610.36:49-1.57:05-0.75:337:58Waxing Crescent5Sun
6Mon1:2211.11:5710.37:39-1.37:57-0.55:347:57Waxing Crescent6Mon
7Tue2:1410.72:4710.18:28-1.08:51-0.25:357:56Waxing Crescent7Tue
8Wed3:0610.23:389.99:18-0.59:450.15:367:54Waxing Crescent8Wed
9Thu4:009.64:309.610:090.110:420.55:377:53First Quarter9Thu
10Fri4:569.05:239.311:010.611:400.85:397:51First Quarter10Fri
11Sat5:538.56:179.111:541.15:407:50First Quarter11Sat
12Sun6:518.17:128.912:391.012:501.45:417:49First Quarter12Sun
13Mon7:518.08:088.91:401.11:481.65:427:47Waxing Gibbous13Mon
14Tue8:478.09:009.12:371.12:431.65:437:46Waxing Gibbous14Tue
15Wed9:388.19:489.23:280.93:321.45:447:44Waxing Gibbous15Wed
16Thu10:238.310:319.44:130.74:161.25:457:43Waxing Gibbous16Thu
17Fri11:058.511:129.64:540.44:561.05:467:41Full Moon17Fri
18Sat11:448.811:509.75:310.25:340.85:477:39Full Moon18Sat
19Sun12:219.06:060.16:120.65:497:38Full Moon19Sun
20Mon12:289.812:569.26:40-0.16:500.45:507:36Full Moon20Mon
21Tue1:049.91:319.47:15-0.17:290.35:517:35Waning Gibbous21Tue
22Wed1:429.82:079.57:52-0.28:110.25:527:33Waning Gibbous22Wed
23Thu2:239.72:479.78:32-0.18:560.15:537:31Waning Gibbous23Thu
24Fri3:079.53:329.89:160.09:460.15:547:30Third Quarter24Fri
25Sat3:589.34:229.910:050.210:410.15:557:28Third Quarter25Sat
26Sun4:549.05:189.910:580.311:400.15:567:26Third Quarter26Sun
27Mon5:558.86:199.911:570.55:587:25Third Quarter27Mon
28Tue7:018.87:2410.112:440.11:000.55:597:23Waning Crescent28Tue
29Wed8:098.98:3010.31:51-0.12:070.46:007:21Waning Crescent29Wed
30Thu9:129.39:3110.62:56-0.43:100.16:017:19Waning Crescent30Thu
31Fri10:109.610:2910.93:55-0.84:09-0.36:027:18New Moon31Fri
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 9:52 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 67% 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 First Quarter (67% 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