Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 29, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 5:39 pm (1.6 ft)
Next high tide : in 5h 13m at 11:57 am (8.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:01 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2042

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon12:1010.912:4110.36:26-1.16:43-0.96:047:15Full Moon1Mon
2Tue12:5910.91:2710.77:11-1.27:34-1.16:057:14Waning Gibbous2Tue
3Wed1:5010.72:1410.87:58-1.08:27-1.06:067:12Waning Gibbous3Wed
4Thu2:4210.33:0410.78:47-0.69:22-0.86:077:10Waning Gibbous4Thu
5Fri3:399.73:5910.49:40-0.110:22-0.46:087:08Third Quarter5Fri
6Sat4:409.14:5910.110:370.511:260.06:097:06Third Quarter6Sat
7Sun5:468.66:039.711:391.06:107:05Third Quarter7Sun
8Mon6:548.37:119.512:340.312:471.36:117:03Waning Crescent8Mon
9Tue8:038.28:189.41:450.51:561.46:137:01Waning Crescent9Tue
10Wed9:058.39:199.52:500.43:001.36:146:59Waning Crescent10Wed
11Thu9:598.510:119.63:460.33:551.06:156:57Waning Crescent11Thu
12Fri10:468.710:589.74:350.24:430.86:166:56New Moon12Fri
13Sat11:288.911:409.65:170.25:260.76:176:54New Moon13Sat
14Sun12:059.15:540.26:060.66:186:52New Moon14Sun
15Mon12:199.512:409.26:280.46:430.56:196:50New Moon15Mon
16Tue12:559.31:129.27:000.57:180.56:206:48Waxing Crescent16Tue
17Wed1:319.01:449.27:310.87:540.66:226:46Waxing Crescent17Wed
18Thu2:078.72:169.18:041.18:300.86:236:45Waxing Crescent18Thu
19Fri2:448.42:518.98:391.49:111.06:246:43Waxing Crescent19Fri
20Sat3:258.03:328.89:191.79:561.26:256:41First Quarter20Sat
21Sun4:127.74:198.610:031.910:461.46:266:39First Quarter21Sun
22Mon5:047.55:128.610:542.111:421.46:276:37First Quarter22Mon
23Tue6:027.46:118.611:502.16:286:35First Quarter23Tue
24Wed7:047.57:148.912:431.312:521.96:296:33Waxing Gibbous24Wed
25Thu8:057.98:169.31:461.01:551.56:316:32Waxing Gibbous25Thu
26Fri9:008.59:149.92:440.52:550.96:326:30Waxing Gibbous26Fri
27Sat9:509.210:0610.43:35-0.13:500.26:336:28Waxing Gibbous27Sat
28Sun10:389.910:5810.74:23-0.64:41-0.66:346:26Full Moon28Sun
29Mon11:2410.611:4910.95:10-1.05:32-1.16:356:24Full Moon29Mon
30Tue12:1111.15:56-1.16:23-1.56:366:22Full Moon30Tue
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 2:48 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 spring phase. Tonight's moon is 100% 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 Full Moon (100% 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