Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, July 12, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 04m at 3:30 pm (0.4 ft)
Next high tide : 9:51 pm (10.9 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:09 am
Moon phase : Waning Crescent (5% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed2:509.23:278.19:110.49:211.36:155:28Third Quarter1Wed
2Thu3:398.84:237.610:060.810:131.86:135:30Third Quarter2Thu
3Fri4:338.45:237.311:041.211:112.16:125:31Third Quarter3Fri
4Sat5:338.26:277.112:091.46:105:32Third Quarter4Sat
5Sun6:368.17:287.212:152.21:141.46:085:33Waning Crescent5Sun
6Mon7:378.38:227.51:182.12:101.16:075:35Waning Crescent6Mon
7Tue8:298.69:077.92:131.82:560.86:055:36Waning Crescent7Tue
8Wed9:149.09:478.32:591.43:350.56:035:37Waning Crescent8Wed
9Thu9:559.310:248.73:400.94:110.26:015:39New Moon9Thu
10Fri10:339.510:589.14:190.54:44-0.16:005:40New Moon10Fri
11Sat11:109.611:319.54:560.15:17-0.25:585:41New Moon11Sat
12Sun12:489.76:34-0.26:52-0.36:566:42New Moon12Sun
13Mon1:059.81:269.67:13-0.57:28-0.26:546:44Waxing Crescent13Mon
14Tue1:4010.02:079.47:55-0.68:080.06:526:45Waxing Crescent14Tue
15Wed2:2010.12:529.18:40-0.68:520.26:516:46Waxing Crescent15Wed
16Thu3:0510.03:448.79:30-0.49:420.66:496:47First Quarter16Thu
17Fri3:579.74:448.310:27-0.110:400.96:476:48First Quarter17Fri
18Sat4:589.55:518.011:310.211:441.26:456:50First Quarter18Sat
19Sun6:079.37:047.912:420.46:436:51First Quarter19Sun
20Mon7:219.38:178.212:561.31:550.36:426:52Waxing Gibbous20Mon
21Tue8:339.59:208.72:111.03:020.06:406:53Waxing Gibbous21Tue
22Wed9:379.810:149.23:180.53:59-0.46:386:55Waxing Gibbous22Wed
23Thu10:3210.111:039.74:150.04:48-0.66:366:56Full Moon23Thu
24Fri11:2310.211:4810.15:07-0.55:34-0.76:346:57Full Moon24Fri
25Sat12:1110.15:56-0.76:17-0.66:336:58Full Moon25Sat
26Sun12:3010.212:569.96:41-0.86:57-0.36:316:59Full Moon26Sun
27Mon1:1010.21:399.57:24-0.77:360.16:297:01Waning Gibbous27Mon
28Tue1:4910.02:229.08:07-0.58:160.66:277:02Waning Gibbous28Tue
29Wed2:289.63:068.58:50-0.18:571.16:257:03Waning Gibbous29Wed
30Thu3:109.23:538.09:350.49:421.66:247:04Waning Gibbous30Thu
31Fri3:568.84:467.610:250.910:322.06:227:05Third Quarter31Fri
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 6:40 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 5% 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 (5% 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