Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 10m at 10:17 am (0.5 ft)
Next high tide : 4:35 pm (9.7 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:33 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu6:568.97:408.112:341.41:220.66:155:28Waxing Gibbous1Thu
2Fri7:549.48:348.61:340.92:170.06:135:30Waxing Gibbous2Fri
3Sat8:489.99:239.32:290.33:08-0.66:125:31Waxing Gibbous3Sat
4Sun9:3910.510:119.93:21-0.33:56-1.16:105:32Full Moon4Sun
5Mon10:2910.910:5910.54:12-0.94:44-1.66:085:33Full Moon5Mon
6Tue11:1911.211:4610.95:02-1.45:31-1.86:075:35Full Moon6Tue
7Wed12:0911.15:53-1.76:19-1.86:055:36Waning Gibbous7Wed
8Thu12:3411.01:0110.96:44-1.87:08-1.56:035:37Waning Gibbous8Thu
9Fri1:2411.01:5410.47:37-1.67:59-1.06:015:38Waning Gibbous9Fri
10Sat2:1710.72:529.88:33-1.28:55-0.56:005:40Third Quarter10Sat
11Sun4:1410.34:559.310:34-0.710:550.16:586:41Third Quarter11Sun
12Mon5:169.86:018.811:39-0.211:590.66:566:42Third Quarter12Mon
13Tue6:229.47:098.512:480.16:546:43Third Quarter13Tue
14Wed7:309.28:168.41:080.91:580.36:526:45Waning Crescent14Wed
15Thu8:359.29:168.62:171.03:010.26:516:46Waning Crescent15Thu
16Fri9:339.310:088.83:180.83:540.16:496:47Waning Crescent16Fri
17Sat10:239.410:539.04:100.64:410.06:476:48Waning Crescent17Sat
18Sun11:089.511:339.24:550.35:210.06:456:50New Moon18Sun
19Mon11:489.55:360.25:580.06:436:51New Moon19Mon
20Tue12:109.312:269.46:140.16:320.16:426:52New Moon20Tue
21Wed12:449.41:029.36:490.17:040.26:406:53New Moon21Wed
22Thu1:179.41:369.17:230.17:350.46:386:54Waxing Crescent22Thu
23Fri1:489.32:118.97:570.28:090.66:366:56Waxing Crescent23Fri
24Sat2:219.22:488.68:340.38:450.96:346:57Waxing Crescent24Sat
25Sun2:579.03:288.39:140.59:251.16:336:58Waxing Crescent25Sun
26Mon3:378.94:148.19:580.710:101.36:316:59First Quarter26Mon
27Tue4:248.85:057.910:470.811:011.56:297:01First Quarter27Tue
28Wed5:178.76:017.911:420.811:571.56:277:02First Quarter28Wed
29Thu6:158.87:028.012:410.76:257:03First Quarter29Thu
30Fri7:189.08:038.512:591.31:430.46:247:04Waxing Gibbous30Fri
31Sat8:219.49:019.12:020.82:420.06:227:05Waxing Gibbous31Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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

Slack tide in South Harpswell, ME is approximately 1:26 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 neap phase. Tonight's moon is 55% 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 minimum.

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 Third Quarter (55% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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