Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, June 21, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 55m at 11:05 am (0.0 ft)
Next high tide : 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 - Apr 2032

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu3:059.83:448.79:29-0.29:430.66:197:07Third Quarter1Thu
2Fri3:569.74:408.610:220.010:390.86:187:08Third Quarter2Fri
3Sat4:559.55:418.511:210.111:410.86:167:09Third Quarter3Sat
4Sun5:599.56:478.712:250.16:147:11Third Quarter4Sun
5Mon7:089.57:539.112:480.71:310.06:127:12Waning Crescent5Mon
6Tue8:169.78:559.61:570.32:35-0.36:117:13Waning Crescent6Tue
7Wed9:1910.19:5110.23:02-0.23:32-0.66:097:14Waning Crescent7Wed
8Thu10:1710.310:4210.74:00-0.84:25-0.96:077:15New Moon8Thu
9Fri11:1110.511:3211.04:55-1.35:15-1.06:057:17New Moon9Fri
10Sat12:0210.55:46-1.56:03-0.96:047:18New Moon10Sat
11Sun12:1911.112:5210.36:35-1.66:50-0.76:027:19New Moon11Sun
12Mon1:0610.91:4010.07:24-1.47:37-0.36:007:20Waxing Crescent12Mon
13Tue1:5110.62:289.58:11-1.08:230.25:597:21Waxing Crescent13Tue
14Wed2:3810.13:189.19:00-0.59:120.75:577:22Waxing Crescent14Wed
15Thu3:279.64:118.69:510.110:041.25:557:24First Quarter15Thu
16Fri4:209.15:068.310:450.511:001.65:537:25First Quarter16Fri
17Sat5:168.76:028.111:400.911:581.85:527:26First Quarter17Sat
18Sun6:148.46:598.012:371.25:507:27First Quarter18Sun
19Mon7:148.37:548.212:591.81:341.35:497:28First Quarter19Mon
20Tue8:128.38:458.42:001.72:271.25:477:30Waxing Gibbous20Tue
21Wed9:048.59:298.82:531.33:131.05:457:31Waxing Gibbous21Wed
22Thu9:508.610:109.13:401.03:540.95:447:32Waxing Gibbous22Thu
23Fri10:338.810:479.54:210.64:320.75:427:33Waxing Gibbous23Fri
24Sat11:149.011:239.85:000.25:080.55:417:34Full Moon24Sat
25Sun11:539.15:37-0.15:450.45:397:36Full Moon25Sun
26Mon12:0010.012:329.26:16-0.46:240.35:387:37Full Moon26Mon
27Tue12:3710.21:129.26:56-0.67:050.35:367:38Waning Gibbous27Tue
28Wed1:1710.31:549.27:38-0.77:480.35:357:39Waning Gibbous28Wed
29Thu2:0010.32:419.28:24-0.78:360.45:337:40Waning Gibbous29Thu
30Fri2:4810.23:329.19:14-0.69:290.55:327:42Waning Gibbous30Fri
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 2:17 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