43.7418’ N, 70.0145’ W

South Harpswell, ME

57°
H 61°
L 43°
NE
10mph
Low tide
3:29 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 43m at 3:29 pm (1.4 ft)
Next high tide : 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 - Nov 1964

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun8:459.69:089.62:290.02:550.16:164:30Waning Crescent1Sun
2Mon9:319.99:569.63:170.03:44-0.26:174:29New Moon2Mon
3Tue10:1410.010:419.54:000.14:28-0.36:194:28New Moon3Tue
4Wed10:5310.011:239.34:400.35:10-0.36:204:27New Moon4Wed
5Thu11:309.95:180.65:49-0.26:214:25New Moon5Thu
6Fri12:049.012:069.75:550.86:270.06:224:24Waxing Crescent6Fri
7Sat12:438.712:439.56:321.17:050.36:244:23Waxing Crescent7Sat
8Sun1:238.41:219.27:101.47:460.56:254:22Waxing Crescent8Sun
9Mon2:058.12:038.97:511.78:300.86:264:21Waxing Crescent9Mon
10Tue2:527.92:518.78:371.99:181.16:284:19First Quarter10Tue
11Wed3:427.73:438.59:282.110:091.26:294:18First Quarter11Wed
12Thu4:357.74:388.410:222.111:011.26:304:17First Quarter12Thu
13Fri5:277.95:358.411:192.011:541.16:324:16First Quarter13Fri
14Sat6:208.26:328.612:171.66:334:15Waxing Gibbous14Sat
15Sun7:098.77:268.912:460.91:131.16:344:14Waxing Gibbous15Sun
16Mon7:559.38:179.21:350.62:040.46:364:13Waxing Gibbous16Mon
17Tue8:399.99:069.62:220.22:53-0.36:374:12Waxing Gibbous17Tue
18Wed9:2310.59:549.93:07-0.23:40-0.96:384:12Full Moon18Wed
19Thu10:0711.010:4310.03:52-0.44:28-1.46:394:11Full Moon19Thu
20Fri10:5411.311:3410.14:40-0.65:17-1.76:414:10Full Moon20Fri
21Sat11:4311.45:29-0.66:08-1.76:424:09Waning Gibbous21Sat
22Sun12:2510.012:3511.36:19-0.47:01-1.56:434:09Waning Gibbous22Sun
23Mon1:199.71:2910.97:13-0.17:57-1.26:444:08Waning Gibbous23Mon
24Tue2:189.42:2910.58:120.28:58-0.86:464:07Third Quarter24Tue
25Wed3:219.23:3510.09:160.610:01-0.46:474:07Third Quarter25Wed
26Thu4:269.04:439.610:240.811:060.06:484:06Third Quarter26Thu
27Fri5:309.05:509.211:330.96:494:06Third Quarter27Fri
28Sat6:339.26:569.112:090.212:420.76:504:05Waning Crescent28Sat
29Sun7:319.47:579.01:100.31:450.56:524:05Waning Crescent29Sun
30Mon8:229.68:509.02:040.42:390.26:534:04Waning Crescent30Mon
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