Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 58m at 1:28 pm (0.7 ft)
Next high tide : 7:50 pm (10.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2058

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:279.410:4311.04:12-0.84:23-0.26:047:15Full Moon1Sun
2Mon11:219.911:3811.25:06-1.25:19-0.66:057:13Full Moon2Mon
3Tue12:1310.35:57-1.46:14-0.96:067:12Full Moon3Tue
4Wed12:3211.21:0310.56:47-1.37:07-1.06:077:10Waning Gibbous4Wed
5Thu1:2410.91:5110.67:35-1.17:59-0.96:087:08Waning Gibbous5Thu
6Fri2:1610.52:4010.48:23-0.68:53-0.66:097:06Waning Gibbous6Fri
7Sat3:099.93:3110.19:130.09:48-0.26:107:04Waning Gibbous7Sat
8Sun4:059.24:249.710:050.610:460.36:127:03Third Quarter8Sun
9Mon5:048.65:209.311:001.211:470.76:137:01Third Quarter9Mon
10Tue6:048.26:198.911:581.66:146:59Third Quarter10Tue
11Wed7:067.97:208.812:501.01:001.96:156:57Third Quarter11Wed
12Thu8:077.88:208.81:531.12:021.96:166:55Waning Crescent12Thu
13Fri9:028.09:139.02:511.02:581.76:176:53Waning Crescent13Fri
14Sat9:518.210:009.23:410.83:471.56:186:52Waning Crescent14Sat
15Sun10:338.510:429.44:230.64:291.26:196:50Waning Crescent15Sun
16Mon11:128.711:219.55:010.55:080.96:216:48New Moon16Mon
17Tue11:489.011:589.55:350.35:440.76:226:46New Moon17Tue
18Wed12:219.26:080.36:200.56:236:44New Moon18Wed
19Thu12:349.512:539.46:390.36:550.36:246:42New Moon19Thu
20Fri1:099.41:259.57:120.37:320.26:256:41Waxing Crescent20Fri
21Sat1:459.31:599.67:470.48:120.26:266:39Waxing Crescent21Sat
22Sun2:249.12:379.68:250.68:550.26:276:37Waxing Crescent22Sun
23Mon3:088.83:219.69:090.89:450.36:286:35First Quarter23Mon
24Tue3:588.54:129.69:581.010:400.46:306:33First Quarter24Tue
25Wed4:568.35:119.510:541.111:410.46:316:31First Quarter25Wed
26Thu6:008.26:169.611:561.26:326:30First Quarter26Thu
27Fri7:088.37:259.712:470.41:031.16:336:28Waxing Gibbous27Fri
28Sat8:158.78:3310.11:550.12:120.76:346:26Waxing Gibbous28Sat
29Sun9:169.29:3410.42:59-0.23:160.26:356:24Waxing Gibbous29Sun
30Mon10:119.810:3110.73:55-0.64:13-0.46:376:22Full Moon30Mon
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 4:39 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 20% 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 (20% 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