Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 9, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 2h 14m at 1:19 am (0.3 ft)
Next high tide (tomorrow) : 7:30 am (8.5 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri8:258.88:598.22:101.42:480.66:155:28Waxing Gibbous1Fri
2Sat9:119.09:418.52:571.13:300.46:135:30Waxing Gibbous2Sat
3Sun9:529.210:198.83:380.84:070.26:125:31Full Moon3Sun
4Mon10:319.410:559.14:160.54:410.06:105:32Full Moon4Mon
5Tue11:079.511:289.34:520.25:14-0.26:085:34Full Moon5Tue
6Wed11:439.65:28-0.15:47-0.26:075:35Full Moon6Wed
7Thu12:019.512:199.66:05-0.26:22-0.36:055:36Waning Gibbous7Thu
8Fri12:359.712:569.56:43-0.47:00-0.26:035:37Waning Gibbous8Fri
9Sat1:129.81:379.37:25-0.47:41-0.16:015:39Waning Gibbous9Sat
10Sun1:549.82:249.08:11-0.38:280.16:005:40Waning Gibbous10Sun
11Mon2:419.83:178.89:03-0.29:200.45:585:41Third Quarter11Mon
12Tue3:369.64:188.610:01-0.110:190.65:565:42Third Quarter12Tue
13Wed4:379.65:248.511:040.011:230.65:545:44Third Quarter13Wed
14Thu5:459.66:348.612:120.05:525:45Waning Crescent14Thu
15Fri6:559.77:419.012:330.51:20-0.35:515:46Waning Crescent15Fri
16Sat8:0210.08:409.51:410.12:22-0.65:495:47Waning Crescent16Sat
17Sun9:0110.49:3410.02:43-0.43:18-1.05:475:48Waning Crescent17Sun
18Mon9:5610.610:2510.43:39-0.94:08-1.25:455:50New Moon18Mon
19Tue10:4810.711:1210.64:31-1.24:57-1.25:435:51New Moon19Tue
20Wed11:3710.611:5810.75:21-1.35:43-1.15:425:52New Moon20Wed
21Thu12:2410.36:09-1.36:27-0.75:405:53Waxing Crescent21Thu
22Fri12:4210.51:119.96:55-1.07:11-0.35:385:55Waxing Crescent22Fri
23Sat1:2610.11:589.37:42-0.67:560.35:365:56Waxing Crescent23Sat
24Sun2:119.72:478.88:30-0.18:430.85:345:57Waxing Crescent24Sun
25Mon3:009.23:408.39:210.49:351.35:335:58First Quarter25Mon
26Tue3:528.84:367.910:160.810:301.65:315:59First Quarter26Tue
27Wed4:498.55:347.811:141.111:291.85:296:01First Quarter27Wed
28Thu5:488.36:337.812:141.35:276:02First Quarter28Thu
29Fri6:488.37:298.012:311.81:121.25:256:03Waxing Gibbous29Fri
30Sat7:448.58:188.31:291.62:031.05:246:04Waxing Gibbous30Sat
31Sun8:338.79:018.72:201.22:460.75:226:05Waxing Gibbous31Sun
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 4:24 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 30% 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 Waning Crescent (30% 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