Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 23m at 12:55 pm (1.0 ft)
Next high tide : 7:18 pm (9.3 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Nov 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:209.49:419.53:010.43:270.37:165:30Waxing Gibbous1Wed
2Thu10:0310.010:289.83:460.04:14-0.47:175:29Full Moon2Thu
3Fri10:4610.511:1510.14:30-0.35:00-0.97:195:28Full Moon3Fri
4Sat11:3011.05:15-0.65:47-1.47:205:26Full Moon4Sat
5Sun12:0310.311:5210.35:02-0.75:36-1.66:214:25Full Moon5Sun
6Mon12:0511.35:50-0.76:26-1.66:234:24Waning Gibbous6Mon
7Tue12:4310.212:5611.26:41-0.57:19-1.46:244:23Waning Gibbous7Tue
8Wed1:389.91:5110.97:34-0.28:16-1.16:254:21Waning Gibbous8Wed
9Thu2:379.62:5110.48:330.19:17-0.76:274:20Third Quarter9Thu
10Fri3:419.33:5710.09:380.510:21-0.36:284:19Third Quarter10Fri
11Sat4:469.25:059.610:460.711:27-0.16:294:18Third Quarter11Sat
12Sun5:519.26:139.411:550.76:304:17Waning Crescent12Sun
13Mon6:549.47:189.312:320.11:030.56:324:16Waning Crescent13Mon
14Tue7:519.68:169.31:320.22:040.36:334:15Waning Crescent14Tue
15Wed8:429.89:089.32:250.22:560.06:344:14Waning Crescent15Wed
16Thu9:279.99:559.33:120.23:44-0.26:364:13New Moon16Thu
17Fri10:0910.010:399.23:550.34:27-0.36:374:12New Moon17Fri
18Sat10:489.911:209.14:350.55:07-0.36:384:11New Moon18Sat
19Sun11:259.811:598.95:120.75:45-0.26:394:11New Moon19Sun
20Mon12:019.75:490.96:210.06:414:10Waxing Crescent20Mon
21Tue12:378.712:379.56:251.16:580.26:424:09Waxing Crescent21Tue
22Wed1:168.51:149.37:031.37:360.46:434:08Waxing Crescent22Wed
23Thu1:568.31:559.07:431.58:180.66:444:08Waxing Crescent23Thu
24Fri2:398.12:408.88:281.79:030.86:464:07First Quarter24Fri
25Sat3:268.03:298.69:171.89:500.96:474:06First Quarter25Sat
26Sun4:158.14:228.510:091.710:400.96:484:06First Quarter26Sun
27Mon5:058.35:178.511:041.611:310.96:494:05First Quarter27Mon
28Tue5:568.66:148.612:011.26:504:05Waxing Gibbous28Tue
29Wed6:489.17:128.912:240.712:580.76:524:04Waxing Gibbous29Wed
30Thu7:389.68:079.21:180.41:540.16:534:04Waxing Gibbous30Thu
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 4:06 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 transitional phase. Tonight's moon is 67% 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 shifting between spring and neap.

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 (67% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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