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 4h 45m 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 - Oct 1989

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun12:349.112:439.46:320.86:560.46:376:21New Moon1Sun
2Mon1:098.81:159.37:031.07:300.56:386:19Waxing Crescent2Mon
3Tue1:458.61:479.27:361.28:060.66:406:17Waxing Crescent3Tue
4Wed2:218.32:239.08:121.58:450.86:416:16Waxing Crescent4Wed
5Thu3:018.03:038.98:511.79:291.16:426:14Waxing Crescent5Thu
6Fri3:467.73:508.79:361.910:191.26:436:12First Quarter6Fri
7Sat4:387.54:448.610:272.111:141.36:446:10First Quarter7Sat
8Sun5:347.55:428.711:232.16:466:08First Quarter8Sun
9Mon6:337.76:448.912:121.212:241.86:476:07First Quarter9Mon
10Tue7:328.17:469.21:121.01:271.46:486:05Waxing Gibbous10Tue
11Wed8:288.78:459.62:090.52:280.86:496:03Waxing Gibbous11Wed
12Thu9:189.59:3910.13:010.03:240.06:506:02Waxing Gibbous12Thu
13Fri10:0610.310:3110.43:50-0.44:16-0.86:526:00Full Moon13Fri
14Sat10:5210.911:2310.64:38-0.85:07-1.46:535:58Full Moon14Sat
15Sun11:4011.35:25-0.95:59-1.76:545:56Full Moon15Sun
16Mon12:1510.612:2911.56:14-0.96:50-1.86:555:55Waning Gibbous16Mon
17Tue1:0710.31:1911.47:03-0.67:43-1.66:575:53Waning Gibbous17Tue
18Wed2:0010.02:1111.07:55-0.28:38-1.16:585:52Waning Gibbous18Wed
19Thu2:579.53:0810.58:500.39:37-0.66:595:50Waning Gibbous19Thu
20Fri3:589.04:119.99:500.810:410.07:005:48Third Quarter20Fri
21Sat5:038.65:189.510:561.211:480.47:025:47Third Quarter21Sat
22Sun6:098.46:259.112:051.47:035:45Third Quarter22Sun
23Mon7:138.47:318.912:530.71:141.57:045:44Waning Crescent23Mon
24Tue8:128.68:318.91:550.82:181.37:055:42Waning Crescent24Tue
25Wed9:048.89:248.92:490.83:131.07:075:41Waning Crescent25Wed
26Thu9:489.110:108.93:350.84:000.77:085:39Waning Crescent26Thu
27Fri10:279.310:528.84:160.84:420.57:095:38New Moon27Fri
28Sat11:039.411:328.84:520.95:200.37:115:36New Moon28Sat
29Sun10:389.511:108.74:261.04:560.26:124:35New Moon29Sun
30Mon11:119.511:468.54:591.15:310.36:134:33New Moon30Mon
31Tue11:449.45:321.36:050.36:144:32Waxing Crescent31Tue
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