Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 5h 54m at 5:21 am (-1.1 ft)
Next high tide (tomorrow) : 11:37 am (9.3 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:278.77:568.01:061.51:461.26:534:04Waxing Gibbous1Sat
2Sun8:109.08:438.11:511.42:320.86:554:03Waxing Gibbous2Sun
3Mon8:509.39:268.22:331.33:140.46:564:03Waxing Gibbous3Mon
4Tue9:299.610:098.43:131.23:540.16:574:03Full Moon4Tue
5Wed10:099.910:518.53:531.04:35-0.26:584:03Full Moon5Wed
6Thu10:5010.111:338.64:350.95:17-0.46:594:03Full Moon6Thu
7Fri11:3410.25:190.86:02-0.57:004:02Waning Gibbous7Fri
8Sat12:178.712:2010.36:050.76:48-0.67:014:02Waning Gibbous8Sat
9Sun1:048.71:0810.26:530.67:36-0.67:014:02Waning Gibbous9Sun
10Mon1:548.82:0110.07:460.68:28-0.47:024:02Waning Gibbous10Mon
11Tue2:488.93:009.78:440.79:23-0.37:034:02Third Quarter11Tue
12Wed3:469.14:029.49:470.610:20-0.17:044:02Third Quarter12Wed
13Thu4:449.35:079.110:520.511:180.27:054:03Third Quarter13Thu
14Fri5:449.56:148.911:590.37:064:03Waning Crescent14Fri
15Sat6:439.87:208.812:180.31:050.07:064:03Waning Crescent15Sat
16Sun7:4010.08:228.81:190.52:07-0.37:074:03Waning Crescent16Sun
17Mon8:3510.39:188.92:160.53:03-0.67:084:04Waning Crescent17Mon
18Tue9:2610.410:108.93:090.53:55-0.87:084:04New Moon18Tue
19Wed10:1510.410:598.93:590.54:44-0.87:094:04New Moon19Wed
20Thu11:0210.311:458.84:460.65:30-0.77:104:05New Moon20Thu
21Fri11:4710.15:320.66:14-0.57:104:05New Moon21Fri
22Sat12:298.712:309.96:160.86:56-0.27:114:06Waxing Crescent22Sat
23Sun1:118.51:139.56:591.07:370.17:114:06Waxing Crescent23Sun
24Mon1:538.41:569.27:431.28:180.47:114:07Waxing Crescent24Mon
25Tue2:378.32:418.78:301.49:000.77:124:08Waxing Crescent25Tue
26Wed3:218.23:298.39:191.59:431.07:124:08First Quarter26Wed
27Thu4:078.24:207.910:101.610:271.37:124:09First Quarter27Thu
28Fri4:538.35:147.611:031.611:141.57:134:10First Quarter28Fri
29Sat5:408.36:117.511:591.57:134:10First Quarter29Sat
30Sun6:308.57:097.512:041.712:561.37:134:11Waxing Gibbous30Sun
31Mon7:208.88:067.612:571.71:500.97:134:12Waxing Gibbous31Mon
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 8:29 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 1% 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 New Moon (1% 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