Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 34m at 9:31 pm (0.4 ft)
Next high tide (tomorrow) : 3:47 am (10.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:437.65:538.711:331.96:386:20Third Quarter1Mon
2Tue6:407.86:538.812:191.212:321.76:396:19Third Quarter2Tue
3Wed7:378.27:529.21:171.01:321.36:406:17Waning Crescent3Wed
4Thu8:318.88:499.62:130.62:310.76:416:15Waning Crescent4Thu
5Fri9:209.59:4210.03:040.13:260.06:426:13Waning Crescent5Fri
6Sat10:0710.210:3310.43:52-0.44:17-0.76:446:11New Moon6Sat
7Sun10:5410.811:2310.64:39-0.85:08-1.36:456:10New Moon7Sun
8Mon11:4111.35:27-1.05:58-1.76:466:08New Moon8Mon
9Tue12:1510.612:3011.56:15-1.06:50-1.86:476:06Waxing Crescent9Tue
10Wed1:0610.51:2011.57:05-0.87:42-1.66:486:04Waxing Crescent10Wed
11Thu2:0010.22:1311.27:57-0.58:37-1.36:506:03Waxing Crescent11Thu
12Fri2:569.73:1010.78:520.09:37-0.76:516:01Waxing Crescent12Fri
13Sat3:589.24:1310.29:520.510:41-0.26:525:59First Quarter13Sat
14Sun5:038.95:209.710:580.911:470.26:535:58First Quarter14Sun
15Mon6:098.76:279.412:071.16:545:56First Quarter15Mon
16Tue7:138.77:339.212:530.51:161.16:565:54Waxing Gibbous16Tue
17Wed8:148.88:349.11:560.62:201.06:575:53Waxing Gibbous17Wed
18Thu9:079.09:289.12:520.63:160.76:585:51Waxing Gibbous18Thu
19Fri9:539.310:159.13:390.64:050.56:595:49Waxing Gibbous19Fri
20Sat10:349.510:589.14:210.64:480.37:015:48Full Moon20Sat
21Sun11:119.611:389.04:590.75:270.27:025:46Full Moon21Sun
22Mon11:469.65:340.86:030.17:035:45Full Moon22Mon
23Tue12:168.912:209.66:081.06:390.27:055:43Full Moon23Tue
24Wed12:538.712:549.56:421.17:130.37:065:42Waning Gibbous24Wed
25Thu1:298.51:289.37:161.37:490.47:075:40Waning Gibbous25Thu
26Fri2:068.32:059.27:531.58:280.67:085:39Waning Gibbous26Fri
27Sat2:458.12:459.18:331.69:100.87:105:37Waning Gibbous27Sat
28Sun3:287.93:308.99:171.79:570.97:115:36Third Quarter28Sun
29Mon4:177.94:228.810:071.810:480.97:125:34Third Quarter29Mon
30Tue5:098.05:188.811:021.711:410.87:145:33Third Quarter30Tue
31Wed6:038.36:178.912:011.47:155:31Third Quarter31Wed
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 12:39 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 27% 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 Crescent (27% 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