Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 4h 55m at 3:00 pm (1.9 ft)
Next high tide : 9:18 pm (9.0 ft)
Sunset today : 8:11 pm
Sunrise tomorrow : 5:21 am
Moon phase : Waxing Gibbous (86% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2074

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:099.21:269.27:130.27:310.36:155:28Waxing Crescent1Thu
2Fri1:459.12:068.77:530.48:080.76:135:30Waxing Crescent2Fri
3Sat2:238.92:498.38:350.78:491.06:125:31Waxing Crescent3Sat
4Sun3:068.63:377.99:210.99:341.46:105:32First Quarter4Sun
5Mon3:528.44:307.610:121.210:231.76:085:34First Quarter5Mon
6Tue4:438.35:277.411:061.311:171.96:065:35First Quarter6Tue
7Wed5:398.36:277.412:061.36:055:36First Quarter7Wed
8Thu6:398.47:267.712:161.81:071.16:035:37Waxing Gibbous8Thu
9Fri7:378.88:198.11:161.52:020.66:015:39Waxing Gibbous9Fri
10Sat8:299.39:068.62:101.12:500.15:595:40Waxing Gibbous10Sat
11Sun10:179.810:509.24:000.44:35-0.46:586:41Waxing Gibbous11Sun
12Mon11:0410.311:349.84:47-0.25:19-0.96:566:42Full Moon12Mon
13Tue11:5110.65:34-0.86:02-1.36:546:44Full Moon13Tue
14Wed12:1710.312:3810.86:21-1.26:47-1.46:526:45Full Moon14Wed
15Thu1:0110.71:2510.87:10-1.57:33-1.46:506:46Waning Gibbous15Thu
16Fri1:4710.92:1510.57:59-1.58:20-1.16:496:47Waning Gibbous16Fri
17Sat2:3510.83:0810.18:52-1.49:12-0.76:476:49Waning Gibbous17Sat
18Sun3:2810.54:079.59:48-1.010:08-0.16:456:50Third Quarter18Sun
19Mon4:2610.25:119.010:50-0.611:090.46:436:51Third Quarter19Mon
20Tue5:309.86:198.611:56-0.26:416:52Third Quarter20Tue
21Wed6:389.57:308.512:160.81:070.16:406:53Third Quarter21Wed
22Thu7:499.38:368.61:271.02:170.16:386:55Waning Crescent22Thu
23Fri8:549.49:358.82:360.83:190.06:366:56Waning Crescent23Fri
24Sat9:519.510:269.13:360.64:11-0.16:346:57Waning Crescent24Sat
25Sun10:429.611:119.34:280.34:57-0.26:326:58New Moon25Sun
26Mon11:279.711:519.55:140.15:39-0.26:316:59New Moon26Mon
27Tue12:099.65:560.06:16-0.16:297:01New Moon27Tue
28Wed12:289.512:479.56:34-0.16:500.16:277:02New Moon28Wed
29Thu1:039.51:249.37:110.07:240.46:257:03Waxing Crescent29Thu
30Fri1:369.42:009.07:460.17:570.66:237:04Waxing Crescent30Fri
31Sat2:099.32:378.78:230.28:320.96:227:06Waxing Crescent31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 6:09 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 86% 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 (86% 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