Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, June 21, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 11:36 pm (0.8 ft)
Next high tide : in 2h 29m at 5:29 pm (9.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (48% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri9:548.810:119.13:430.74:000.96:386:20Waning Crescent1Fri
2Sat10:349.110:529.24:230.64:400.66:396:18New Moon2Sat
3Sun11:119.311:319.34:590.65:180.46:406:16New Moon3Sun
4Mon11:459.55:320.55:530.26:426:15New Moon4Mon
5Tue12:079.212:189.66:050.56:280.16:436:13New Moon5Tue
6Wed12:439.212:519.66:380.67:030.16:446:11Waxing Crescent6Wed
7Thu1:199.11:259.77:130.77:410.16:456:09Waxing Crescent7Thu
8Fri1:558.92:029.77:510.88:210.16:466:07Waxing Crescent8Fri
9Sat2:368.82:449.68:320.99:070.26:486:06Waxing Crescent9Sat
10Sun3:218.63:329.59:201.09:580.36:496:04First Quarter10Sun
11Mon4:148.54:289.510:131.010:540.46:506:02First Quarter11Mon
12Tue5:128.55:299.511:121.011:530.36:516:01First Quarter12Tue
13Wed6:148.76:339.612:150.96:525:59First Quarter13Wed
14Thu7:189.17:409.812:560.21:210.56:545:57Waxing Gibbous14Thu
15Fri8:199.68:4410.11:58-0.12:260.06:555:56Waxing Gibbous15Fri
16Sat9:1610.29:4310.42:57-0.53:26-0.66:565:54Waxing Gibbous16Sat
17Sun10:0910.710:3810.63:52-0.84:22-1.26:575:52Full Moon17Sun
18Mon10:5911.111:3110.74:43-0.95:15-1.56:595:51Full Moon18Mon
19Tue11:4911.35:33-1.06:06-1.67:005:49Full Moon19Tue
20Wed12:2310.512:3811.36:22-0.86:57-1.57:015:47Waning Gibbous20Wed
21Thu1:1410.31:2711.07:11-0.57:47-1.27:025:46Waning Gibbous21Thu
22Fri2:059.92:1610.58:000.08:38-0.77:045:44Waning Gibbous22Fri
23Sat2:579.43:0810.08:510.59:32-0.27:055:43Waning Gibbous23Sat
24Sun3:518.94:039.59:461.010:280.37:065:41Third Quarter24Sun
25Mon4:498.65:029.010:441.411:260.77:075:40Third Quarter25Mon
26Tue5:468.46:018.711:441.67:095:38Third Quarter26Tue
27Wed6:438.37:008.512:231.012:461.77:105:37Third Quarter27Wed
28Thu7:388.47:578.51:201.11:451.57:115:35Waning Crescent28Thu
29Fri8:298.68:508.62:131.12:401.37:135:34Waning Crescent29Fri
30Sat9:148.99:378.73:001.03:270.97:145:32Waning Crescent30Sat
31Sun9:559.210:198.83:410.94:080.67:155:31Waning Crescent31Sun
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 8:32 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 48% 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 First Quarter (48% 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