43.7418’ N, 70.0145’ W

South Harpswell, ME

54°
H -°
L 47°
NNE
10mph
Low tide
2:36 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, September 22, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 03m at 2:36 am (1.3 ft)
Next high tide : 8:49 am (7.8 ft)
Sunset today : 6:37 pm
Sunrise tomorrow : 6:27 am
Moon phase : Waxing Gibbous (83% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1968

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri12:169.412:319.56:180.06:39-0.16:165:28Waxing Crescent1Fri
2Sat12:529.31:109.16:580.17:130.36:145:30Waxing Crescent2Sat
3Sun1:279.21:498.77:370.37:490.76:125:31Waxing Crescent3Sun
4Mon2:039.02:328.28:180.68:271.26:105:32Waxing Crescent4Mon
5Tue2:428.73:187.79:030.99:101.66:095:33First Quarter5Tue
6Wed3:278.44:107.49:521.29:582.06:075:35First Quarter6Wed
7Thu4:188.25:077.110:471.410:522.26:055:36First Quarter7Thu
8Fri5:158.16:107.011:481.511:532.36:045:37First Quarter8Fri
9Sat6:178.17:127.212:521.46:025:38Waxing Gibbous9Sat
10Sun7:198.48:077.512:562.11:511.06:005:40Waxing Gibbous10Sun
11Mon8:148.98:548.11:541.62:390.55:585:41Waxing Gibbous11Mon
12Tue9:029.49:378.72:441.03:220.05:565:42Waxing Gibbous12Tue
13Wed9:479.910:179.33:310.44:03-0.55:555:43Full Moon13Wed
14Thu10:3210.310:589.94:16-0.34:44-0.85:535:45Full Moon14Thu
15Fri11:1710.411:3910.45:02-0.85:25-1.05:515:46Full Moon15Fri
16Sat12:0310.45:48-1.26:08-1.05:495:47Waning Gibbous16Sat
17Sun12:2110.712:5010.26:35-1.46:52-0.85:475:48Waning Gibbous17Sun
18Mon1:0610.81:409.87:24-1.37:40-0.45:465:49Waning Gibbous18Mon
19Tue1:5510.62:359.38:18-1.08:320.15:445:51Waning Gibbous19Tue
20Wed2:4910.23:368.79:17-0.69:310.75:425:52Third Quarter20Wed
21Thu3:519.84:448.310:22-0.110:361.15:405:53Third Quarter21Thu
22Fri4:599.35:578.011:330.311:491.45:385:54Third Quarter22Fri
23Sat6:139.17:098.112:470.45:375:56Waning Crescent23Sat
24Sun7:259.28:128.41:041.31:550.35:355:57Waning Crescent24Sun
25Mon8:279.39:068.72:101.02:510.15:335:58Waning Crescent25Mon
26Tue9:219.59:529.13:060.63:390.05:315:59Waning Crescent26Tue
27Wed10:089.610:349.33:550.34:21-0.15:296:00New Moon27Wed
28Thu10:519.511:119.54:390.14:590.05:286:02New Moon28Thu
29Fri11:319.411:459.55:19-0.15:330.25:266:03New Moon29Fri
30Sat12:099.15:56-0.16:060.55:246:04New Moon30Sat
31Sun12:189.512:458.86:320.06:390.85:226:05Waxing Crescent31Sun
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 83% 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 (83% 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