43.7418’ N, 70.0145’ W

South Harpswell, ME

66°
H 67°
L 59°
S
11mph
High tide
3:26 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, September 16, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:50 pm (0.7 ft)
Next high tide : in 53m at 3:26 pm (9.2 ft)
Sunset today : 6:48 pm
Sunrise tomorrow : 6:20 am
Moon phase : Waxing Crescent (30% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Nov 1974

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri11:2010.211:569.15:060.55:41-0.56:154:31Full Moon1Fri
2Sat12:0110.35:480.56:24-0.56:174:30Waning Gibbous2Sat
3Sun12:399.112:4510.36:320.57:10-0.56:184:28Waning Gibbous3Sun
4Mon1:269.01:3410.27:200.68:01-0.46:194:27Waning Gibbous4Mon
5Tue2:188.92:2910.08:140.78:56-0.26:214:26Third Quarter5Tue
6Wed3:178.93:309.79:130.89:560.06:224:25Third Quarter6Wed
7Thu4:198.94:369.510:180.810:570.16:234:23Third Quarter7Thu
8Fri5:219.25:439.411:250.611:590.16:254:22Third Quarter8Fri
9Sat6:249.56:519.412:330.36:264:21Waning Crescent9Sat
10Sun7:239.97:549.51:010.01:38-0.16:274:20Waning Crescent10Sun
11Mon8:1810.38:519.61:59-0.12:36-0.66:284:19Waning Crescent11Mon
12Tue9:0810.69:449.72:51-0.13:29-0.96:304:18New Moon12Tue
13Wed9:5610.810:349.73:41-0.14:19-1.16:314:17New Moon13Wed
14Thu10:4310.711:229.54:280.05:06-1.06:324:16New Moon14Thu
15Fri11:2810.65:140.25:52-0.86:344:15New Moon15Fri
16Sat12:089.312:1210.35:590.56:36-0.56:354:14Waxing Crescent16Sat
17Sun12:539.012:569.96:430.87:21-0.16:364:13Waxing Crescent17Sun
18Mon1:388.71:419.57:281.18:060.36:384:12Waxing Crescent18Mon
19Tue2:258.42:299.18:151.48:530.66:394:11Waxing Crescent19Tue
20Wed3:148.23:208.79:061.69:420.96:404:10First Quarter20Wed
21Thu4:058.14:148.410:001.810:311.26:414:10First Quarter21Thu
22Fri4:568.25:098.210:561.811:201.36:434:09First Quarter22Fri
23Sat5:468.36:048.111:521.76:444:08First Quarter23Sat
24Sun6:368.57:008.112:111.412:481.46:454:07Waxing Gibbous24Sun
25Mon7:238.87:518.21:001.31:401.06:464:07Waxing Gibbous25Mon
26Tue8:079.28:398.41:471.22:260.66:474:06Waxing Gibbous26Tue
27Wed8:489.69:238.62:311.03:090.16:494:06Waxing Gibbous27Wed
28Thu9:2910.010:078.93:130.83:52-0.36:504:05Full Moon28Thu
29Fri10:1110.310:519.03:560.54:35-0.66:514:05Full Moon29Fri
30Sat10:5510.611:369.24:400.35:20-0.96:524:04Full Moon30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Collapse All
Is this week a spring tide or neap tide in South Harpswell, ME?

South Harpswell, ME is currently in a transitional phase. Tonight's moon is 30% 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 shifting between spring and neap.

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 Crescent (30% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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