Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 12, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 1h 46m at 2:55 pm (0.4 ft)
Next high tide : 9:14 pm (10.6 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 - Aug 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:389.110:5111.14:24-0.74:300.15:298:03New Moon1Sun
2Mon11:339.611:4711.35:18-1.15:27-0.35:308:02New Moon2Mon
3Tue12:2610.06:11-1.46:23-0.65:318:01New Moon3Tue
4Wed12:4211.41:1810.37:01-1.57:18-0.85:328:00Waxing Crescent4Wed
5Thu1:3511.12:0810.57:51-1.38:12-0.75:337:58Waxing Crescent5Thu
6Fri2:2810.72:5910.58:40-1.09:08-0.55:347:57Waxing Crescent6Fri
7Sat3:2410.13:5210.39:31-0.410:07-0.25:357:56First Quarter7Sat
8Sun4:229.44:4710.010:250.211:070.25:367:54First Quarter8Sun
9Mon5:228.85:439.611:200.85:377:53First Quarter9Mon
10Tue6:248.36:429.312:090.512:191.35:387:51First Quarter10Tue
11Wed7:287.97:439.11:140.81:211.65:407:50Waxing Gibbous11Wed
12Thu8:307.88:429.12:180.92:231.75:417:49Waxing Gibbous12Thu
13Fri9:267.99:359.23:160.83:181.75:427:47Waxing Gibbous13Fri
14Sat10:158.010:229.34:060.74:061.55:437:46Waxing Gibbous14Sat
15Sun10:598.211:049.54:490.54:501.35:447:44Full Moon15Sun
16Mon11:388.511:439.55:280.45:291.15:457:43Full Moon16Mon
17Tue12:158.76:030.36:061.05:467:41Full Moon17Tue
18Wed12:209.512:488.86:350.36:420.95:477:39Full Moon18Wed
19Thu12:559.41:209.07:050.37:170.85:497:38Waning Gibbous19Thu
20Fri1:299.31:519.17:360.47:530.75:507:36Waning Gibbous20Fri
21Sat2:049.12:239.28:090.58:310.75:517:35Waning Gibbous21Sat
22Sun2:418.92:599.38:450.79:130.75:527:33Waning Gibbous22Sun
23Mon3:238.63:409.39:250.910:010.75:537:31Third Quarter23Mon
24Tue4:118.34:289.310:121.110:540.75:547:30Third Quarter24Tue
25Wed5:058.15:239.411:041.211:530.75:557:28Third Quarter25Wed
26Thu6:067.96:249.512:021.35:567:26Third Quarter26Thu
27Fri7:128.07:319.712:580.61:071.25:587:25Waning Crescent27Fri
28Sat8:218.38:3810.12:050.32:140.85:597:23Waning Crescent28Sat
29Sun9:238.89:4010.63:09-0.23:180.36:007:21Waning Crescent29Sun
30Mon10:209.410:3710.94:06-0.74:17-0.26:017:20New Moon30Mon
31Tue11:1310.011:3211.14:58-1.15:13-0.76:027:18New Moon31Tue
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 6:04 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 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