Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, August 5, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 10:17 am (0.5 ft)
Next high tide : in 2h 38m at 4:11 am (8.9 ft)
Sunset today : 7:58 pm
Sunrise tomorrow : 5:33 am
Moon phase : Third Quarter (55% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2090

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue3:4410.44:1810.59:55-0.910:29-0.45:308:03First Quarter1Tue
2Wed4:459.95:1610.310:52-0.411:32-0.15:318:01First Quarter2Wed
3Thu5:489.46:1710.111:510.15:328:00First Quarter3Thu
4Fri6:539.07:199.912:370.112:540.55:337:59Waxing Gibbous4Fri
5Sat7:598.78:219.91:440.21:580.75:347:57Waxing Gibbous5Sat
6Sun9:018.79:189.92:480.12:590.85:357:56Waxing Gibbous6Sun
7Mon9:578.810:109.93:450.03:530.85:367:55Waxing Gibbous7Mon
8Tue10:478.810:579.94:350.04:420.75:377:53Full Moon8Tue
9Wed11:328.911:419.95:20-0.15:260.75:387:52Full Moon9Wed
10Thu12:149.06:01-0.16:080.75:397:50Full Moon10Thu
11Fri12:219.812:529.06:390.06:460.75:417:49Full Moon11Fri
12Sat12:599.71:289.17:140.17:240.75:427:48Waning Gibbous12Sat
13Sun1:369.52:039.07:470.38:010.85:437:46Waning Gibbous13Sun
14Mon2:139.32:389.08:210.48:390.95:447:45Waning Gibbous14Mon
15Tue2:519.03:158.98:570.69:201.05:457:43Waning Gibbous15Tue
16Wed3:328.73:558.99:360.910:041.15:467:41Third Quarter16Wed
17Thu4:168.44:388.910:191.110:521.25:477:40Third Quarter17Thu
18Fri5:058.25:268.911:051.211:441.25:487:38Third Quarter18Fri
19Sat5:578.06:189.011:561.35:507:37Third Quarter19Sat
20Sun6:558.07:149.312:401.012:511.35:517:35Waning Crescent20Sun
21Mon7:558.28:139.61:400.81:511.05:527:34Waning Crescent21Mon
22Tue8:548.69:1010.12:390.32:490.65:537:32Waning Crescent22Tue
23Wed9:489.210:0410.73:34-0.33:450.15:547:30Waning Crescent23Wed
24Thu10:409.710:5711.14:26-0.84:39-0.55:557:29New Moon24Thu
25Fri11:3110.311:5011.35:16-1.35:32-1.05:567:27New Moon25Fri
26Sat12:2210.76:06-1.66:25-1.35:577:25New Moon26Sat
27Sun12:4311.41:1311.06:56-1.77:19-1.45:597:23Waxing Crescent27Sun
28Mon1:3611.22:0411.07:46-1.58:13-1.36:007:22Waxing Crescent28Mon
29Tue2:3010.82:5710.98:38-1.29:09-1.06:017:20Waxing Crescent29Tue
30Wed3:2710.33:5310.69:32-0.610:09-0.66:027:18First Quarter30Wed
31Thu4:289.74:5210.210:30-0.111:12-0.26:037:16First Quarter31Thu
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 7:14 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 55% 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 (55% 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