Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 5:21 am (-1.1 ft)
Next high tide : in 1h 59m at 10:50 pm (11.1 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:287.97:428.71:121.11:241.96:376:21Waxing Gibbous1Mon
2Tue8:268.08:398.82:131.12:251.76:396:19Waxing Gibbous2Tue
3Wed9:168.39:298.93:041.03:171.46:406:17Waxing Gibbous3Wed
4Thu9:598.610:139.03:480.84:021.16:416:15Waxing Gibbous4Thu
5Fri10:378.910:539.14:260.74:420.86:426:14Full Moon5Fri
6Sat11:129.211:309.15:000.75:190.56:436:12Full Moon6Sat
7Sun11:449.45:320.75:540.46:456:10Full Moon7Sun
8Mon12:079.012:169.56:030.76:280.26:466:08Full Moon8Mon
9Tue12:428.912:479.56:350.87:030.26:476:07Waning Gibbous9Tue
10Wed1:178.81:209.67:091.07:400.26:486:05Waning Gibbous10Wed
11Thu1:548.61:579.57:461.18:210.36:496:03Waning Gibbous11Thu
12Fri2:358.32:399.48:281.39:070.56:516:01Waning Gibbous12Fri
13Sat3:218.13:289.39:151.410:000.66:526:00Third Quarter13Sat
14Sun4:168.04:269.310:101.510:590.76:535:58Third Quarter14Sun
15Mon5:187.95:319.211:111.56:545:56Third Quarter15Mon
16Tue6:238.16:389.412:020.612:171.46:555:55Third Quarter16Tue
17Wed7:278.67:469.61:060.41:260.96:575:53Waning Crescent17Wed
18Thu8:289.28:509.92:080.12:320.36:585:51Waning Crescent18Thu
19Fri9:229.99:4710.23:05-0.33:32-0.36:595:50Waning Crescent19Fri
20Sat10:1310.510:4210.33:57-0.54:26-0.97:005:48New Moon20Sat
21Sun11:0111.011:3410.34:46-0.75:18-1.37:025:47New Moon21Sun
22Mon11:4911.25:34-0.66:09-1.57:035:45New Moon22Mon
23Tue12:2510.212:3611.16:22-0.46:58-1.47:045:43Waxing Crescent23Tue
24Wed1:169.81:2310.87:090.07:48-1.07:055:42Waxing Crescent24Wed
25Thu2:069.42:1210.47:580.58:39-0.57:075:40Waxing Crescent25Thu
26Fri2:588.93:049.88:481.09:340.17:085:39Waxing Crescent26Fri
27Sat3:548.44:019.39:431.410:320.67:095:37First Quarter27Sat
28Sun4:538.15:018.810:431.811:311.07:115:36First Quarter28Sun
29Mon5:527.96:028.611:452.07:125:35First Quarter29Mon
30Tue6:497.97:028.412:301.212:472.07:135:33First Quarter30Tue
31Wed7:448.17:598.41:261.31:481.87:145:32Waxing Gibbous31Wed
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 2:05 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 1% 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 (1% 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