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 : 10:56 pm (0.4 ft)
Next high tide : in 5h 12m at 4:35 pm (9.7 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 2091

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:4810.41:239.47:08-0.67:180.35:298:03Waning Gibbous1Wed
2Thu1:3210.12:059.37:49-0.38:020.55:308:02Waning Gibbous2Thu
3Fri2:159.82:479.28:300.08:460.75:318:00Waning Gibbous3Fri
4Sat2:589.43:299.19:100.39:311.05:337:59Waning Gibbous4Sat
5Sun3:438.94:138.99:520.710:191.25:347:58Third Quarter5Sun
6Mon4:318.54:588.810:351.011:091.35:357:56Third Quarter6Mon
7Tue5:218.25:468.711:211.35:367:55Third Quarter7Tue
8Wed6:147.96:368.712:011.412:101.65:377:54Third Quarter8Wed
9Thu7:107.77:298.812:561.51:031.75:387:52Waning Crescent9Thu
10Fri8:087.88:229.01:541.31:581.65:397:51Waning Crescent10Fri
11Sat9:028.09:129.32:481.02:501.45:407:49Waning Crescent11Sat
12Sun9:508.39:599.73:370.63:391.15:417:48Waning Crescent12Sun
13Mon10:368.710:4510.14:220.24:260.75:437:46New Moon13Mon
14Tue11:209.111:3010.55:05-0.35:120.25:447:45New Moon14Tue
15Wed12:049.65:49-0.75:59-0.25:457:43New Moon15Wed
16Thu12:1610.712:4810.06:33-1.06:47-0.55:467:42New Moon16Thu
17Fri1:0310.81:3410.37:18-1.17:36-0.75:477:40Waxing Crescent17Fri
18Sat1:5110.82:2110.58:04-1.18:27-0.75:487:39Waxing Crescent18Sat
19Sun2:4210.53:1110.58:53-0.99:22-0.65:497:37Waxing Crescent19Sun
20Mon3:3710.14:0610.49:45-0.610:20-0.45:507:36First Quarter20Mon
21Tue4:379.75:0410.310:41-0.211:22-0.25:517:34First Quarter21Tue
22Wed5:409.36:0510.111:410.25:537:32First Quarter22Wed
23Thu6:479.07:1010.012:280.012:450.55:547:31Waxing Gibbous23Thu
24Fri7:548.88:1510.01:370.01:520.65:557:29Waxing Gibbous24Fri
25Sat8:588.99:1610.12:420.02:560.65:567:27Waxing Gibbous25Sat
26Sun9:559.010:1010.23:41-0.23:530.55:577:26Waxing Gibbous26Sun
27Mon10:479.211:0010.24:33-0.34:440.35:587:24Full Moon27Mon
28Tue11:339.311:4610.15:20-0.45:310.25:597:22Full Moon28Tue
29Wed12:169.46:03-0.36:150.26:007:20Full Moon29Wed
30Thu12:2910.012:569.46:43-0.26:560.36:027:19Full Moon30Thu
31Fri1:099.81:339.47:200.07:350.46:037:17Waning Gibbous31Fri
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 7:45 pm — 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