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 38m 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 - Jun 2023

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu9:428.49:539.73:310.73:351.05:018:14Waxing Gibbous1Thu
2Fri10:298.610:3410.14:160.24:190.95:008:15Full Moon2Fri
3Sat11:158.811:1810.55:00-0.35:030.75:008:16Full Moon3Sat
4Sun12:039.05:46-0.65:500.64:598:17Full Moon4Sun
5Mon12:0510.712:519.16:34-0.96:390.54:598:17Full Moon5Mon
6Tue12:5410.81:419.17:23-1.07:300.54:588:18Waning Gibbous6Tue
7Wed1:4510.82:349.18:15-0.98:240.54:588:19Waning Gibbous7Wed
8Thu2:4010.63:319.19:09-0.89:220.64:588:19Waning Gibbous8Thu
9Fri3:3910.34:309.210:06-0.610:250.74:588:20Third Quarter9Fri
10Sat4:4110.05:309.311:05-0.311:310.74:578:21Third Quarter10Sat
11Sun5:469.66:309.512:03-0.14:578:21Third Quarter11Sun
12Mon6:519.27:289.712:370.61:030.24:578:22Waning Crescent12Mon
13Tue7:569.08:259.91:440.52:010.44:578:22Waning Crescent13Tue
14Wed8:588.99:1810.12:470.22:570.64:578:23Waning Crescent14Wed
15Thu9:558.810:0710.23:43-0.13:490.84:578:23Waning Crescent15Thu
16Fri10:478.810:5310.14:34-0.34:370.94:578:24New Moon16Fri
17Sat11:368.711:3810.15:22-0.35:231.14:578:24New Moon17Sat
18Sun12:228.66:07-0.26:061.24:578:24New Moon18Sun
19Mon12:219.91:058.56:50-0.16:481.34:578:25New Moon19Mon
20Tue1:029.81:468.47:300.17:291.54:578:25Waxing Crescent20Tue
21Wed1:429.62:268.38:100.38:101.64:588:25Waxing Crescent21Wed
22Thu2:239.43:078.28:490.58:531.74:588:25Waxing Crescent22Thu
23Fri3:059.13:508.29:290.69:381.84:588:25Waxing Crescent23Fri
24Sat3:498.84:338.310:110.810:261.84:588:26First Quarter24Sat
25Sun4:368.65:178.410:531.011:151.84:598:26First Quarter25Sun
26Mon5:258.36:018.511:361.14:598:26First Quarter26Mon
27Tue6:168.16:468.812:061.712:211.35:008:26First Quarter27Tue
28Wed7:108.07:339.11:001.51:091.45:008:26Waxing Gibbous28Wed
29Thu8:078.08:229.41:551.12:011.35:018:26Waxing Gibbous29Thu
30Fri9:028.19:129.92:500.72:531.25:018:25Waxing Gibbous30Fri
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