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 33m 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 - Apr 2027

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu7:478.28:327.71:292.12:161.36:217:06Waning Crescent1Thu
2Fri8:438.49:198.12:291.83:051.16:197:07Waning Crescent2Fri
3Sat9:328.610:018.53:201.43:470.96:177:08Waning Crescent3Sat
4Sun10:158.910:389.04:031.04:230.66:167:10Waning Crescent4Sun
5Mon10:569.111:139.44:430.54:580.46:147:11New Moon5Mon
6Tue11:359.211:479.85:210.15:330.36:127:12New Moon6Tue
7Wed12:149.35:59-0.36:090.26:107:13New Moon7Wed
8Thu12:2210.012:539.36:39-0.66:480.26:087:14New Moon8Thu
9Fri1:0010.21:359.27:20-0.77:290.36:077:16Waxing Crescent9Fri
10Sat1:4110.32:199.08:05-0.78:140.46:057:17Waxing Crescent10Sat
11Sun2:2610.23:108.78:54-0.59:040.76:037:18Waxing Crescent11Sun
12Mon3:1810.04:078.59:49-0.310:010.96:027:19First Quarter12Mon
13Tue4:189.75:118.310:500.011:051.16:007:20First Quarter13Tue
14Wed5:259.56:198.411:550.25:587:22First Quarter14Wed
15Thu6:359.47:278.612:141.11:030.25:567:23First Quarter15Thu
16Fri7:469.48:309.11:260.92:080.15:557:24Waxing Gibbous16Fri
17Sat8:529.59:269.62:350.53:07-0.15:537:25Waxing Gibbous17Sat
18Sun9:509.710:1610.13:35-0.13:59-0.25:517:26Waxing Gibbous18Sun
19Mon10:439.811:0210.44:29-0.54:46-0.25:507:28Full Moon19Mon
20Tue11:339.811:4610.55:18-0.85:31-0.15:487:29Full Moon20Tue
21Wed12:209.66:05-0.96:140.15:477:30Full Moon21Wed
22Thu12:2810.51:059.36:49-0.96:560.45:457:31Full Moon22Thu
23Fri1:0910.21:489.07:32-0.67:370.85:437:32Waning Gibbous23Fri
24Sat1:499.92:318.68:14-0.28:191.25:427:34Waning Gibbous24Sat
25Sun2:329.53:178.38:590.29:041.55:407:35Waning Gibbous25Sun
26Mon3:179.14:067.99:460.79:531.85:397:36Waning Gibbous26Mon
27Tue4:078.74:597.710:361.010:462.15:377:37Third Quarter27Tue
28Wed5:018.45:527.711:291.311:422.25:367:38Third Quarter28Wed
29Thu5:588.26:467.812:221.45:347:39Third Quarter29Thu
30Fri6:558.27:398.012:412.11:151.45:337:41Third Quarter30Fri
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