Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 30, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 1h 52m at 6:23 am (0.4 ft)
Next high tide : 12:37 pm (8.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:01 am
Moon phase : Full Moon (100% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2043

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:108.48:2710.21:550.12:020.95:298:03Waning Crescent1Sat
2Sun9:168.59:2910.43:01-0.13:070.85:308:02Waning Crescent2Sun
3Mon10:178.710:2810.64:02-0.44:070.65:318:01New Moon3Mon
4Tue11:139.011:2310.74:58-0.65:030.45:327:59New Moon4Tue
5Wed12:059.25:51-0.85:570.25:337:58New Moon5Wed
6Thu12:1510.712:549.46:39-0.76:470.25:347:57New Moon6Thu
7Fri1:0410.51:399.47:24-0.67:360.35:357:55Waxing Crescent7Fri
8Sat1:5110.12:229.48:07-0.38:230.45:367:54Waxing Crescent8Sat
9Sun2:369.63:059.38:480.29:110.75:377:53Waxing Crescent9Sun
10Mon3:239.13:499.19:300.610:000.95:397:51Waxing Crescent10Mon
11Tue4:128.54:348.910:141.110:511.25:407:50First Quarter11Tue
12Wed5:048.05:228.711:001.611:441.45:417:48First Quarter12Wed
13Thu5:587.66:128.511:491.95:427:47First Quarter13Thu
14Fri6:567.47:088.512:421.612:432.25:437:45First Quarter14Fri
15Sat7:577.38:058.61:431.61:412.25:447:44Waxing Gibbous15Sat
16Sun8:547.49:008.82:421.42:382.15:457:42Waxing Gibbous16Sun
17Mon9:447.69:489.13:331.13:291.85:467:41Waxing Gibbous17Mon
18Tue10:308.010:339.54:170.84:141.55:487:39Waxing Gibbous18Tue
19Wed11:118.311:159.84:580.44:571.15:497:38Full Moon19Wed
20Thu11:508.711:5610.15:360.05:390.75:507:36Full Moon20Thu
21Fri12:289.26:14-0.36:220.35:517:34Full Moon21Fri
22Sat12:3710.21:069.66:51-0.57:050.05:527:33Waning Gibbous22Sat
23Sun1:1910.21:459.97:31-0.57:50-0.35:537:31Waning Gibbous23Sun
24Mon2:0310.12:2710.28:12-0.58:38-0.45:547:30Waning Gibbous24Mon
25Tue2:519.83:1310.28:57-0.29:30-0.35:557:28Waning Gibbous25Tue
26Wed3:439.44:0410.29:460.110:27-0.15:577:26Third Quarter26Wed
27Thu4:418.95:0110.010:410.511:280.15:587:24Third Quarter27Thu
28Fri5:458.56:049.811:400.95:597:23Third Quarter28Fri
29Sat6:548.37:129.712:350.312:461.16:007:21Waning Crescent29Sat
30Sun8:058.28:219.81:470.31:561.16:017:19Waning Crescent30Sun
31Mon9:108.59:2510.02:550.13:030.96:027:18Waning Crescent31Mon
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 9:30 am — 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 100% 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 Full Moon (100% 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