Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 10m at 11:21 pm (0.8 ft)
Next high tide (tomorrow) : 5:29 am (8.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun2:0910.02:429.48:26-0.48:420.35:288:04Waning Gibbous1Sun
2Mon2:549.93:269.69:09-0.39:320.35:298:02Waning Gibbous2Mon
3Tue3:439.74:159.89:56-0.210:260.25:308:01Third Quarter3Tue
4Wed4:379.45:089.910:470.011:240.25:318:00Third Quarter4Wed
5Thu5:369.16:0410.011:420.25:337:59Third Quarter5Thu
6Fri6:399.07:0510.112:250.112:410.35:347:57Waning Crescent6Fri
7Sat7:468.98:0910.31:31-0.11:450.45:357:56Waning Crescent7Sat
8Sun8:529.09:1110.62:37-0.32:480.35:367:55Waning Crescent8Sun
9Mon9:539.310:0910.83:38-0.63:490.15:377:53Waning Crescent9Mon
10Tue10:509.511:0411.04:35-0.94:45-0.15:387:52New Moon10Tue
11Wed11:449.711:5711.05:28-1.15:39-0.35:397:50New Moon11Wed
12Thu12:349.86:18-1.16:30-0.35:407:49New Moon12Thu
13Fri12:4810.81:229.97:06-1.07:20-0.25:417:47Waxing Crescent13Fri
14Sat1:3610.52:079.87:51-0.78:080.05:437:46Waxing Crescent14Sat
15Sun2:2310.12:539.68:36-0.38:560.35:447:44Waxing Crescent15Sun
16Mon3:109.53:399.49:200.29:460.65:457:43Waxing Crescent16Mon
17Tue4:009.04:269.110:060.710:380.95:467:41First Quarter17Tue
18Wed4:528.55:158.910:541.111:321.25:477:40First Quarter18Wed
19Thu5:468.16:068.711:441.55:487:38First Quarter19Thu
20Fri6:427.87:008.712:281.412:361.75:497:37First Quarter20Fri
21Sat7:407.77:558.71:271.41:331.85:507:35Waxing Gibbous21Sat
22Sun8:377.88:488.92:241.32:281.75:527:33Waxing Gibbous22Sun
23Mon9:288.09:369.23:161.03:181.55:537:32Waxing Gibbous23Mon
24Tue10:138.310:209.54:010.74:031.25:547:30Waxing Gibbous24Tue
25Wed10:558.611:029.84:410.44:450.95:557:28Full Moon25Wed
26Thu11:358.911:4310.05:200.05:260.55:567:27Full Moon26Thu
27Fri12:149.35:58-0.36:080.25:577:25Full Moon27Fri
28Sat12:2310.212:529.66:37-0.56:50-0.15:587:23Full Moon28Sat
29Sun1:0510.31:329.97:17-0.67:34-0.35:597:22Waning Gibbous29Sun
30Mon1:4810.32:1310.17:58-0.68:21-0.46:017:20Waning Gibbous30Mon
31Tue2:3510.12:5910.28:43-0.59:12-0.46:027:18Waning Gibbous31Tue
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 2:25 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 neap phase. Tonight's moon is 52% 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 minimum.

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 Third Quarter (52% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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