Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 15, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 7:09 am (-1.3 ft)
Next high tide (tomorrow) : in 5h 56m at 12:43 am (11.2 ft)
Sunset today : 8:19 pm
Sunrise tomorrow : 5:12 am
Moon phase : New Moon (2% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Nov 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:228.312:189.36:071.46:410.56:164:31Waxing Crescent1Wed
2Thu12:588.112:549.26:431.67:200.66:174:29Waxing Crescent2Thu
3Fri1:377.91:359.17:231.78:030.86:184:28Waxing Crescent3Fri
4Sat2:217.82:219.08:091.88:510.96:204:27First Quarter4Sat
5Sun3:117.73:148.99:001.99:440.96:214:25First Quarter5Sun
6Mon4:057.94:128.99:571.810:380.86:224:24First Quarter6Mon
7Tue5:018.25:139.010:571.511:340.66:244:23First Quarter7Tue
8Wed5:578.76:169.112:001.06:254:22Waxing Gibbous8Wed
9Thu6:539.37:179.412:310.41:030.46:264:21Waxing Gibbous9Thu
10Fri7:4610.08:169.71:270.02:02-0.36:284:19Waxing Gibbous10Fri
11Sat8:3610.79:119.92:19-0.32:56-1.06:294:18Full Moon11Sat
12Sun9:2611.210:0410.13:10-0.53:49-1.56:304:17Full Moon12Sun
13Mon10:1611.510:5810.14:01-0.64:41-1.86:324:16Full Moon13Mon
14Tue11:0711.511:519.94:52-0.55:34-1.86:334:15Full Moon14Tue
15Wed12:0011.35:43-0.36:27-1.56:344:14Waning Gibbous15Wed
16Thu12:459.612:5310.96:360.07:21-1.16:354:13Waning Gibbous16Thu
17Fri1:409.31:4910.47:310.48:18-0.66:374:12Waning Gibbous17Fri
18Sat2:388.92:499.88:300.99:180.06:384:12Third Quarter18Sat
19Sun3:398.63:529.39:341.210:180.46:394:11Third Quarter19Sun
20Mon4:408.54:548.810:391.411:160.86:414:10Third Quarter20Mon
21Tue5:388.55:568.511:431.56:424:09Third Quarter21Tue
22Wed6:338.66:568.312:131.012:461.36:434:09Waning Crescent22Wed
23Thu7:248.87:518.21:071.21:421.16:444:08Waning Crescent23Thu
24Fri8:109.08:408.21:551.32:320.86:454:07Waning Crescent24Fri
25Sat8:519.29:258.32:381.33:150.66:474:07Waning Crescent25Sat
26Sun9:309.310:068.33:171.33:550.46:484:06New Moon26Sun
27Mon10:079.410:468.33:541.34:320.36:494:06New Moon27Mon
28Tue10:439.511:248.34:301.45:080.26:504:05New Moon28Tue
29Wed11:199.55:061.45:440.26:514:05New Moon29Wed
30Thu12:028.211:56 AM9.55:431.46:210.26:524:04Waxing Crescent30Thu
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 3:56 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 2% 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 New Moon (2% 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