43.7418’ N, 70.0145’ W

South Harpswell, ME

61°
H -°
L 56°
NE
4mph
High tide
11:06 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, September 25, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 5:13 am (0.1 ft)
Next high tide : in 2h 49m at 11:06 pm (9.6 ft)
Sunset today : 6:32 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 1959

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue11:0811.711:4910.44:52-1.05:31-2.16:534:04New Moon1Tue
2Wed12:0111.65:45-0.96:24-2.06:544:04Waxing Crescent2Wed
3Thu12:4310.312:5511.36:39-0.77:19-1.76:554:03Waxing Crescent3Thu
4Fri1:3910.01:5210.87:35-0.48:15-1.26:564:03Waxing Crescent4Fri
5Sat2:379.82:5310.38:350.09:14-0.76:574:03First Quarter5Sat
6Sun3:389.53:569.79:390.410:14-0.26:584:03First Quarter6Sun
7Mon4:399.35:009.210:450.611:150.26:594:03First Quarter7Mon
8Tue5:399.26:048.811:510.77:004:03First Quarter8Tue
9Wed6:389.27:068.612:150.612:550.77:014:02Waxing Gibbous9Wed
10Thu7:339.38:038.61:130.81:530.57:024:02Waxing Gibbous10Thu
11Fri8:229.48:548.62:060.82:440.37:034:03Waxing Gibbous11Fri
12Sat9:079.59:398.62:520.93:290.17:044:03Waxing Gibbous12Sat
13Sun9:489.610:218.63:340.94:110.07:054:03Full Moon13Sun
14Mon10:279.611:018.64:130.94:490.07:054:03Full Moon14Mon
15Tue11:039.611:398.64:500.95:24-0.17:064:03Full Moon15Tue
16Wed11:399.65:250.95:590.07:074:03Full Moon16Wed
17Thu12:158.612:149.56:011.06:330.07:084:04Waning Gibbous17Thu
18Fri12:508.612:509.46:371.07:090.17:084:04Waning Gibbous18Fri
19Sat1:268.51:279.37:161.17:470.27:094:04Waning Gibbous19Sat
20Sun2:058.52:089.17:581.18:280.27:094:05Waning Gibbous20Sun
21Mon2:478.62:559.08:451.19:130.37:104:05Third Quarter21Mon
22Tue3:338.73:468.89:361.010:020.37:104:06Third Quarter22Tue
23Wed4:239.04:438.710:320.810:540.47:114:06Third Quarter23Wed
24Thu5:169.35:438.711:310.511:500.37:114:07Third Quarter24Thu
25Fri6:139.76:478.912:330.17:124:07Waning Crescent25Fri
26Sat7:1210.17:499.112:500.11:35-0.47:124:08Waning Crescent26Sat
27Sun8:0910.78:499.51:49-0.22:34-1.07:124:09Waning Crescent27Sun
28Mon9:0511.19:459.82:46-0.53:29-1.57:134:09New Moon28Mon
29Tue9:5911.510:4010.13:41-0.84:24-1.97:134:10New Moon29Tue
30Wed10:5311.611:3410.24:35-1.05:17-2.07:134:11New Moon30Wed
31Thu11:4711.55:30-1.06:09-2.07:134:12Waxing Crescent31Thu
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 99% 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 Full Moon (99% 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