Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 5h 30m at 1:41 am (0.9 ft)
Next high tide (tomorrow) : 7:51 am (8.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jan 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:498.712:509.76:380.77:10-0.37:134:13Waxing Crescent1Sun
2Mon1:278.81:319.77:200.67:51-0.37:134:14Waxing Crescent2Mon
3Tue2:088.92:179.58:060.68:36-0.27:134:15Waxing Crescent3Tue
4Wed2:549.03:089.38:570.59:25-0.17:134:16First Quarter4Wed
5Thu3:459.24:049.19:530.510:180.07:134:17First Quarter5Thu
6Fri4:409.45:058.910:530.311:150.17:134:18First Quarter6Fri
7Sat5:389.66:118.911:570.17:134:19Waxing Gibbous7Sat
8Sun6:399.97:189.012:160.11:03-0.37:134:20Waxing Gibbous8Sun
9Mon7:4110.38:229.21:180.02:06-0.77:124:21Waxing Gibbous9Mon
10Tue8:3910.79:209.52:19-0.23:05-1.27:124:22Waxing Gibbous10Tue
11Wed9:3511.010:169.73:16-0.44:00-1.57:124:24Full Moon11Wed
12Thu10:2911.211:099.94:10-0.64:53-1.77:114:25Full Moon12Thu
13Fri11:2111.15:04-0.75:44-1.77:114:26Full Moon13Fri
14Sat12:009.912:1210.95:55-0.66:32-1.57:104:27Waning Gibbous14Sat
15Sun12:499.81:0110.56:46-0.47:20-1.17:104:28Waning Gibbous15Sun
16Mon1:389.61:5110.07:36-0.18:08-0.67:094:30Waning Gibbous16Mon
17Tue2:279.32:439.48:280.38:57-0.17:094:31Waning Gibbous17Tue
18Wed3:189.03:368.89:230.79:470.57:084:32Third Quarter18Wed
19Thu4:098.84:328.310:191.010:380.97:074:33Third Quarter19Thu
20Fri5:028.65:307.911:171.211:321.37:074:35Third Quarter20Fri
21Sat5:558.56:297.712:181.27:064:36Third Quarter21Sat
22Sun6:508.57:287.712:281.51:181.17:054:37Waning Crescent22Sun
23Mon7:438.78:217.81:241.52:110.87:044:39Waning Crescent23Mon
24Tue8:318.99:088.02:141.42:570.57:044:40Waning Crescent24Tue
25Wed9:159.29:518.32:591.23:390.27:034:41Waning Crescent25Wed
26Thu9:569.510:318.53:400.94:17-0.17:024:43New Moon26Thu
27Fri10:359.711:108.74:190.74:54-0.37:014:44New Moon27Fri
28Sat11:139.911:469.04:570.45:30-0.57:004:45New Moon28Sat
29Sun11:5110.15:360.26:07-0.76:594:47New Moon29Sun
30Mon12:239.212:3010.16:170.06:46-0.86:584:48Waxing Crescent30Mon
31Tue1:019.41:1210.07:00-0.27:27-0.86:574:49Waxing Crescent31Tue
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 4:46 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 67% 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 First Quarter (67% 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