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 5h 56m 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 - Aug 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed5:059.35:3110.011:070.311:530.25:298:03First Quarter1Wed
2Thu6:088.76:309.812:050.85:308:02First Quarter2Thu
3Fri7:148.37:319.512:580.41:071.25:318:01Waxing Gibbous3Fri
4Sat8:198.18:339.42:050.52:111.55:327:59Waxing Gibbous4Sat
5Sun9:208.09:299.53:070.53:111.55:337:58Waxing Gibbous5Sun
6Mon10:138.110:209.54:010.44:031.45:347:57Waxing Gibbous6Mon
7Tue11:008.211:059.64:490.44:501.35:357:55Full Moon7Tue
8Wed11:438.411:479.65:320.35:321.25:377:54Full Moon8Wed
9Thu12:228.56:100.36:111.15:387:53Full Moon9Thu
10Fri12:259.612:578.76:450.36:491.05:397:51Full Moon10Fri
11Sat1:019.51:318.87:170.37:241.05:407:50Waning Gibbous11Sat
12Sun1:369.32:038.97:470.48:011.05:417:48Waning Gibbous12Sun
13Mon2:119.02:358.98:190.68:381.05:427:47Waning Gibbous13Mon
14Tue2:488.83:098.98:530.89:191.05:437:45Waning Gibbous14Tue
15Wed3:288.43:478.99:311.110:031.15:447:44Third Quarter15Wed
16Thu4:138.14:308.910:131.310:521.15:467:42Third Quarter16Thu
17Fri5:037.95:199.011:001.511:461.15:477:41Third Quarter17Fri
18Sat5:587.76:159.111:531.65:487:39Third Quarter18Sat
19Sun7:007.67:169.312:471.012:531.65:497:37Waning Crescent19Sun
20Mon8:067.88:219.71:520.81:571.35:507:36Waning Crescent20Mon
21Tue9:098.39:2210.22:550.33:000.85:517:34Waning Crescent21Tue
22Wed10:068.910:1910.73:52-0.33:590.35:527:33New Moon22Wed
23Thu10:599.511:1411.14:45-0.84:55-0.35:537:31New Moon23Thu
24Fri11:5010.15:35-1.25:50-0.85:557:29New Moon24Fri
25Sat12:0811.212:4010.56:25-1.46:43-1.15:567:28Waxing Crescent25Sat
26Sun1:0111.11:2910.87:13-1.37:37-1.15:577:26Waxing Crescent26Sun
27Mon1:5310.82:1810.88:01-1.08:31-1.05:587:24Waxing Crescent27Mon
28Tue2:4710.33:0910.68:51-0.59:27-0.75:597:23Waxing Crescent28Tue
29Wed3:439.64:0410.29:440.110:26-0.26:007:21First Quarter29Wed
30Thu4:449.05:029.810:400.711:290.36:017:19First Quarter30Thu
31Fri5:478.46:039.411:411.26:027:17First Quarter31Fri
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