Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 33m at 12:00 pm (0.5 ft)
Next high tide : 6:24 pm (9.4 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:238.88:077.91:051.51:530.66:165:28Waning Crescent1Fri
2Sat8:198.98:588.12:041.42:460.56:145:29Waning Crescent2Sat
3Sun9:089.19:438.42:551.23:320.36:135:30Waning Crescent3Sun
4Mon9:529.210:238.63:390.94:120.26:115:32New Moon4Mon
5Tue10:319.411:008.84:190.74:480.16:095:33New Moon5Tue
6Wed11:089.411:338.94:550.55:200.06:085:34New Moon6Wed
7Thu11:439.45:300.45:510.06:065:35New Moon7Thu
8Fri12:059.112:179.36:030.36:220.16:045:37Waxing Crescent8Fri
9Sat12:369.112:519.26:380.26:540.26:025:38Waxing Crescent9Sat
10Sun1:079.22:269.08:140.28:290.47:016:39Waxing Crescent10Sun
11Mon2:419.23:058.78:540.29:080.66:596:40Waxing Crescent11Mon
12Tue3:209.23:508.59:380.39:530.86:576:42First Quarter12Tue
13Wed4:069.24:428.210:290.410:431.06:556:43First Quarter13Wed
14Thu4:589.15:418.111:250.411:411.16:536:44First Quarter14Thu
15Fri5:589.26:478.112:280.46:526:45First Quarter15Fri
16Sat7:059.37:568.312:441.01:360.26:506:47Waxing Gibbous16Sat
17Sun8:149.79:008.81:520.82:42-0.26:486:48Waxing Gibbous17Sun
18Mon9:1810.29:589.52:580.23:41-0.86:466:49Waxing Gibbous18Mon
19Tue10:1710.710:5210.13:58-0.44:36-1.26:446:50Full Moon19Tue
20Wed11:1211.011:4310.64:54-1.05:27-1.56:436:51Full Moon20Wed
21Thu12:0511.15:47-1.46:16-1.66:416:53Full Moon21Thu
22Fri12:3210.912:5711.06:39-1.67:04-1.56:396:54Full Moon22Fri
23Sat1:1911.01:4710.67:30-1.67:51-1.16:376:55Waning Gibbous23Sat
24Sun2:0610.82:3810.18:21-1.38:39-0.56:356:56Waning Gibbous24Sun
25Mon2:5510.43:319.59:13-0.99:300.26:346:57Waning Gibbous25Mon
26Tue3:469.94:288.810:09-0.310:240.86:326:59Third Quarter26Tue
27Wed4:429.35:288.311:070.311:231.36:307:00Third Quarter27Wed
28Thu5:418.96:308.012:090.76:287:01Third Quarter28Thu
29Fri6:438.67:337.812:251.71:141.06:267:02Third Quarter29Fri
30Sat7:478.58:327.91:311.82:171.06:257:04Waning Crescent30Sat
31Sun8:458.69:248.22:321.73:110.96:237:05Waning 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 3:12 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 58% 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 (58% 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