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 58m 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 - Jan 2065

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:169.75:538.611:380.111:530.47:134:14Waning Crescent1Thu
2Fri6:179.97:018.512:45-0.17:134:14Waning Crescent2Fri
3Sat7:2010.18:078.612:570.51:52-0.47:134:15Waning Crescent3Sat
4Sun8:2110.39:088.82:000.52:52-0.77:134:16Waning Crescent4Sun
5Mon9:1810.510:049.02:590.33:48-1.07:134:17New Moon5Mon
6Tue10:1210.610:569.13:540.14:40-1.17:134:18New Moon6Tue
7Wed11:0410.611:459.24:460.05:29-1.17:134:19New Moon7Wed
8Thu11:5310.55:360.06:16-0.97:124:21Waxing Crescent8Thu
9Fri12:319.212:3910.26:240.16:59-0.67:124:22Waxing Crescent9Fri
10Sat1:159.11:249.77:110.37:42-0.27:124:23Waxing Crescent10Sat
11Sun1:599.02:119.27:590.68:240.27:114:24Waxing Crescent11Sun
12Mon2:448.82:598.68:480.99:080.77:114:25First Quarter12Mon
13Tue3:298.73:508.19:391.19:531.17:114:26First Quarter13Tue
14Wed4:178.54:447.710:331.310:411.57:104:27First Quarter14Wed
15Thu5:068.45:417.411:291.411:331.87:104:29First Quarter15Thu
16Fri5:598.36:427.212:291.47:094:30Waxing Gibbous16Fri
17Sat6:558.47:407.312:291.91:281.27:084:31Waxing Gibbous17Sat
18Sun7:488.78:327.51:261.92:210.97:084:32Waxing Gibbous18Sun
19Mon8:379.09:197.82:171.63:070.57:074:34Waxing Gibbous19Mon
20Tue9:229.410:028.13:031.33:480.17:064:35Full Moon20Tue
21Wed10:049.710:428.53:460.94:28-0.37:064:36Full Moon21Wed
22Thu10:4610.111:228.94:280.55:07-0.67:054:38Full Moon22Thu
23Fri11:2710.35:110.25:46-0.97:044:39Full Moon23Fri
24Sat12:019.312:0910.45:54-0.26:26-1.07:034:40Waning Gibbous24Sat
25Sun12:409.612:5310.36:40-0.47:07-1.07:024:42Waning Gibbous25Sun
26Mon1:239.81:4010.07:27-0.57:52-0.87:014:43Waning Gibbous26Mon
27Tue2:0810.02:319.68:19-0.58:40-0.57:004:44Third Quarter27Tue
28Wed2:5810.03:289.19:15-0.39:330.06:594:46Third Quarter28Wed
29Thu3:539.84:318.610:16-0.110:310.46:584:47Third Quarter29Thu
30Fri4:549.75:398.211:210.111:340.86:574:48Third Quarter30Fri
31Sat6:009.66:518.112:330.16:564:50Waning Crescent31Sat
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