Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:31 pm (0.4 ft)
Next high tide : in 2h 24m at 3:35 pm (9.5 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 - May 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:3011.32:149.87:55-1.58:070.05:317:42Waning Gibbous1Tue
2Wed2:2310.83:109.48:50-1.09:030.45:297:44Waning Gibbous2Wed
3Thu3:2010.34:099.09:47-0.510:030.95:287:45Third Quarter3Thu
4Fri4:209.75:108.710:470.011:061.25:277:46Third Quarter4Fri
5Sat5:229.26:098.611:470.55:257:47Third Quarter5Sat
6Sun6:258.87:088.612:101.412:460.85:247:48Third Quarter6Sun
7Mon7:268.58:038.71:151.41:431.05:237:49Waning Crescent7Mon
8Tue8:258.48:538.92:161.32:361.15:227:51Waning Crescent8Tue
9Wed9:188.49:379.13:101.03:221.25:207:52Waning Crescent9Wed
10Thu10:058.410:179.33:560.74:031.25:197:53Waning Crescent10Thu
11Fri10:488.510:559.54:380.54:411.25:187:54New Moon11Fri
12Sat11:298.511:319.65:170.35:171.25:177:55New Moon12Sat
13Sun12:088.55:540.25:531.25:167:56New Moon13Sun
14Mon12:079.612:458.56:290.16:281.35:157:57New Moon14Mon
15Tue12:429.71:228.57:050.17:051.35:137:58Waxing Crescent15Tue
16Wed1:189.71:598.47:420.17:441.35:127:59Waxing Crescent16Wed
17Thu1:569.62:398.48:210.18:261.35:118:01Waxing Crescent17Thu
18Fri2:389.63:238.49:040.19:131.35:108:02Waxing Crescent18Fri
19Sat3:259.54:118.69:510.210:061.25:108:03First Quarter19Sat
20Sun4:179.45:038.810:410.211:021.15:098:04First Quarter20Sun
21Mon5:149.35:579.211:340.25:088:05First Quarter21Mon
22Tue6:159.26:539.612:020.812:290.25:078:06First Quarter22Tue
23Wed7:189.27:5010.01:050.41:270.15:068:07Waxing Gibbous23Wed
24Thu8:239.38:4710.52:09-0.12:260.05:058:08Waxing Gibbous24Thu
25Fri9:249.59:4211.03:10-0.63:23-0.15:058:09Waxing Gibbous25Fri
26Sat10:229.710:3511.34:07-1.14:17-0.25:048:10Full Moon26Sat
27Sun11:189.811:2811.45:02-1.45:11-0.25:038:10Full Moon27Sun
28Mon12:139.85:56-1.56:04-0.25:028:11Full Moon28Mon
29Tue12:2111.31:079.76:49-1.46:570.05:028:12Waning Gibbous29Tue
30Wed1:1411.11:599.57:40-1.27:500.35:018:13Waning Gibbous30Wed
31Thu2:0610.72:519.38:32-0.88:430.65:018:14Waning Gibbous31Thu
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 6:33 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 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