Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 31, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 28m at 7:08 pm (0.9 ft)
Next high tide (tomorrow) : 1:21 am (9.7 ft)
Sunset today : 8:04 pm
Sunrise tomorrow : 5:28 am
Moon phase : Waning Gibbous (96% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2081

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:1710.110:4010.74:02-0.74:23-0.76:386:20New Moon1Wed
2Thu11:0610.711:3310.84:51-1.05:16-1.26:396:18New Moon2Thu
3Fri11:5411.15:39-1.16:08-1.66:416:16New Moon3Fri
4Sat12:2510.712:4211.36:27-0.97:00-1.66:426:14Waxing Crescent4Sat
5Sun1:1710.41:3011.17:16-0.67:52-1.46:436:13Waxing Crescent5Sun
6Mon2:099.92:2010.88:05-0.18:45-0.96:446:11Waxing Crescent6Mon
7Tue3:049.33:1410.28:570.59:42-0.36:456:09Waxing Crescent7Tue
8Wed4:038.84:139.69:551.110:440.36:466:07First Quarter8Wed
9Thu5:058.35:179.210:571.511:490.76:486:06First Quarter9Thu
10Fri6:098.06:228.812:021.86:496:04First Quarter10Fri
11Sat7:128.07:268.712:531.01:081.86:506:02First Quarter11Sat
12Sun8:108.18:258.71:551.12:111.76:516:00Waxing Gibbous12Sun
13Mon9:018.49:168.82:491.03:051.46:535:59Waxing Gibbous13Mon
14Tue9:458.710:018.93:340.93:511.16:545:57Waxing Gibbous14Tue
15Wed10:249.010:429.04:120.84:320.86:555:55Waxing Gibbous15Wed
16Thu10:599.211:209.04:470.85:090.56:565:54Full Moon16Thu
17Fri11:329.411:578.95:190.85:440.36:575:52Full Moon17Fri
18Sat12:049.55:510.96:190.26:595:50Full Moon18Sat
19Sun12:338.812:369.56:231.06:530.27:005:49Full Moon19Sun
20Mon1:088.61:099.56:581.17:300.27:015:47Waning Gibbous20Mon
21Tue1:458.41:459.57:341.38:100.37:025:46Waning Gibbous21Tue
22Wed2:248.22:269.48:151.48:540.57:045:44Waning Gibbous22Wed
23Thu3:098.03:149.39:011.59:460.67:055:43Waning Gibbous23Thu
24Fri4:027.94:109.29:541.610:430.77:065:41Third Quarter24Fri
25Sat5:027.95:129.210:541.611:430.67:085:39Third Quarter25Sat
26Sun6:048.16:189.211:591.47:095:38Third Quarter26Sun
27Mon7:078.67:259.412:450.51:061.07:105:37Waning Crescent27Mon
28Tue8:079.28:309.71:460.22:130.47:115:35Waning Crescent28Tue
29Wed9:029.99:2910.02:44-0.13:13-0.37:135:34Waning Crescent29Wed
30Thu9:5310.510:2410.23:36-0.44:08-0.97:145:32New Moon30Thu
31Fri10:4211.011:1710.24:26-0.65:01-1.47:155:31New Moon31Fri
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 10:14 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 96% 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 Waning Gibbous (96% 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