43.7418’ N, 70.0145’ W

South Harpswell, ME

55°
H -°
L 43°
ESE
5mph
High tide
9:44 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 4:01 am (0.6 ft)
Next high tide : in 2h 54m at 9:44 pm (9.1 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:189.41:319.97:16-0.17:47-0.56:574:49Waning Gibbous1Sat
2Sun2:049.22:199.48:050.28:320.06:564:51Waning Gibbous2Sun
3Mon2:519.03:108.88:560.69:190.56:554:52Third Quarter3Mon
4Tue3:398.84:038.29:500.910:071.06:544:53Third Quarter4Tue
5Wed4:288.54:597.810:451.110:581.46:534:55Third Quarter5Wed
6Thu5:208.45:587.511:441.311:531.76:514:56Third Quarter6Thu
7Fri6:168.36:597.412:461.36:504:57Waning Crescent7Fri
8Sat7:128.47:567.512:511.81:441.16:494:59Waning Crescent8Sat
9Sun8:058.68:477.71:471.72:350.86:475:00Waning Crescent9Sun
10Mon8:528.99:328.02:351.53:190.56:465:02Waning Crescent10Mon
11Tue9:369.310:138.33:191.23:590.16:455:03New Moon11Tue
12Wed10:169.610:528.64:000.84:37-0.26:435:04New Moon12Wed
13Thu10:569.911:298.94:390.55:14-0.56:425:06New Moon13Thu
14Fri11:3510.15:190.25:51-0.76:415:07New Moon14Fri
15Sat12:069.212:1410.26:00-0.16:29-0.86:395:08Waxing Crescent15Sat
16Sun12:439.512:5610.16:43-0.37:09-0.86:385:10Waxing Crescent16Sun
17Mon1:239.71:409.97:28-0.47:52-0.66:365:11Waxing Crescent17Mon
18Tue2:079.82:309.58:18-0.48:39-0.46:355:12Waxing Crescent18Tue
19Wed2:569.83:269.19:12-0.39:320.06:335:14First Quarter19Wed
20Thu3:509.74:278.710:12-0.110:290.46:325:15First Quarter20Thu
21Fri4:509.65:358.411:160.011:320.76:305:16First Quarter21Fri
22Sat5:569.66:478.312:270.06:295:18Waxing Gibbous22Sat
23Sun7:059.67:558.512:410.81:37-0.26:275:19Waxing Gibbous23Sun
24Mon8:119.98:568.81:500.62:40-0.56:265:20Waxing Gibbous24Mon
25Tue9:1110.29:519.12:510.33:36-0.86:245:22Waxing Gibbous25Tue
26Wed10:0510.410:419.43:470.04:26-1.06:225:23Full Moon26Wed
27Thu10:5510.411:279.64:38-0.35:13-1.06:215:24Full Moon27Thu
28Fri11:4110.35:25-0.45:55-0.96:195:26Full Moon28Fri
29Sat12:099.612:2510.06:10-0.46:36-0.66:175:27Waning Gibbous29Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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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 90% 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 Waxing Gibbous (90% 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