Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 3:25 am (-0.4 ft)
Next high tide : in 25m at 8:51 pm (10.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2061

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:479.88:388.41:240.92:21-0.36:554:51Waxing Gibbous1Tue
2Wed8:4910.09:368.62:280.73:20-0.66:544:52Waxing Gibbous2Wed
3Thu9:4610.310:298.93:270.44:14-0.86:534:54Full Moon3Thu
4Fri10:3910.411:189.14:200.15:03-0.96:524:55Full Moon4Fri
5Sat11:2810.45:100.05:49-0.96:504:57Full Moon5Sat
6Sun12:039.212:1310.25:580.06:31-0.76:494:58Waning Gibbous6Sun
7Mon12:449.312:569.86:420.07:10-0.46:484:59Waning Gibbous7Mon
8Tue1:259.21:399.37:270.27:500.16:475:01Waning Gibbous8Tue
9Wed2:059.02:248.78:120.58:290.66:455:02Waning Gibbous9Wed
10Thu2:468.83:118.28:590.89:121.16:445:03Third Quarter10Thu
11Fri3:318.64:027.79:481.19:571.56:435:05Third Quarter11Fri
12Sat4:188.34:587.310:421.310:481.96:415:06Third Quarter12Sat
13Sun5:108.25:587.111:401.511:442.16:405:07Third Quarter13Sun
14Mon6:088.17:017.012:441.56:385:09Waning Crescent14Mon
15Tue7:098.37:597.212:452.21:451.26:375:10Waning Crescent15Tue
16Wed8:048.68:497.51:441.92:360.96:355:12Waning Crescent16Wed
17Thu8:539.09:348.02:341.63:200.46:345:13Waning Crescent17Thu
18Fri9:379.510:148.43:191.14:000.06:325:14New Moon18Fri
19Sat10:199.910:538.94:020.64:39-0.46:315:16New Moon19Sat
20Sun11:0110.211:319.44:450.15:17-0.86:295:17New Moon20Sun
21Mon11:4310.35:28-0.35:56-1.06:285:18New Moon21Mon
22Tue12:109.812:2510.36:11-0.66:36-1.06:265:20Waxing Crescent22Tue
23Wed12:5010.11:1010.16:57-0.87:18-0.86:255:21Waxing Crescent23Wed
24Thu1:3210.21:599.77:46-0.88:04-0.56:235:22Waxing Crescent24Thu
25Fri2:1910.22:539.28:39-0.68:550.06:215:23First Quarter25Fri
26Sat3:1210.03:538.69:37-0.39:510.56:205:25First Quarter26Sat
27Sun4:119.75:008.210:410.010:541.06:185:26First Quarter27Sun
28Mon5:189.46:137.911:520.26:165:27First Quarter28Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 12:08 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 11% 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 Waning Crescent (11% 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