43.7418’ N, 70.0145’ W

South Harpswell, ME

66°
H 69°
L 57°
NE
13mph
Low tide
4:52 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, September 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 19m at 4:52 pm (0.4 ft)
Next high tide : 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 - Aug 1960

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon5:468.86:139.811:520.45:298:03First Quarter1Mon
2Tue6:478.87:1210.112:350.312:500.45:308:02Waxing Gibbous2Tue
3Wed7:538.98:1510.41:390.01:530.35:318:01Waxing Gibbous3Wed
4Thu8:589.19:1610.82:43-0.42:550.15:327:59Waxing Gibbous4Thu
5Fri9:589.510:1511.13:43-0.83:55-0.35:337:58Full Moon5Fri
6Sat10:559.911:1111.44:40-1.24:52-0.65:347:57Full Moon6Sat
7Sun11:5010.25:34-1.55:48-0.85:357:55Full Moon7Sun
8Mon12:0711.412:4310.46:26-1.66:42-0.95:367:54Full Moon8Mon
9Tue1:0011.31:3510.57:17-1.57:36-0.85:377:53Waning Gibbous9Tue
10Wed1:5211.02:2510.48:07-1.28:29-0.55:387:51Waning Gibbous10Wed
11Thu2:4510.43:1610.18:56-0.79:24-0.25:407:50Waning Gibbous11Thu
12Fri3:399.84:099.89:48-0.210:200.25:417:48Third Quarter12Fri
13Sat4:359.25:029.510:400.411:180.65:427:47Third Quarter13Sat
14Sun5:328.75:579.211:340.95:437:45Third Quarter14Sun
15Mon6:318.36:539.012:180.912:301.35:447:44Third Quarter15Mon
16Tue7:308.07:509.01:191.01:281.55:457:42Waning Crescent16Tue
17Wed8:288.08:449.02:181.02:261.65:467:41Waning Crescent17Wed
18Thu9:218.19:339.23:120.93:171.45:477:39Waning Crescent18Thu
19Fri10:088.310:189.43:590.74:031.35:497:37Waning Crescent19Fri
20Sat10:518.510:599.54:400.54:441.15:507:36New Moon20Sat
21Sun11:308.711:389.75:180.35:220.95:517:34New Moon21Sun
22Mon12:089.05:530.16:000.75:527:33New Moon22Mon
23Tue12:159.712:439.16:270.06:370.55:537:31New Moon23Tue
24Wed12:529.81:179.37:010.07:140.35:547:29Waxing Crescent24Wed
25Thu1:289.71:519.57:37-0.17:540.25:557:28Waxing Crescent25Thu
26Fri2:069.62:299.68:150.08:370.25:577:26Waxing Crescent26Fri
27Sat2:489.43:119.78:560.19:240.15:587:24Waxing Crescent27Sat
28Sun3:369.23:599.89:430.210:170.25:597:23First Quarter28Sun
29Mon4:299.04:529.810:340.411:140.26:007:21First Quarter29Mon
30Tue5:288.85:519.911:310.56:017:19First Quarter30Tue
31Wed6:328.76:5510.012:150.212:320.66:027:17Waxing Gibbous31Wed
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