Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 24, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 5h 33m at 3:02 am (1.1 ft)
Next high tide (tomorrow) : 9:11 am (7.6 ft)
Sunset today : 8:12 pm
Sunrise tomorrow : 5:20 am
Moon phase : Waxing Gibbous (79% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Apr 2073

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat7:258.98:118.41:081.31:530.66:197:07Waning Crescent1Sat
2Sun8:298.99:088.52:141.32:530.66:187:08Waning Crescent2Sun
3Mon9:249.09:578.83:121.13:440.56:167:09Waning Crescent3Mon
4Tue10:129.110:399.04:020.84:270.46:147:11Waning Crescent4Tue
5Wed10:569.211:189.24:450.55:060.36:127:12New Moon5Wed
6Thu11:359.211:539.45:240.35:410.36:107:13New Moon6Thu
7Fri12:139.26:000.26:130.46:097:14New Moon7Fri
8Sat12:269.412:489.16:350.16:450.56:077:15New Moon8Sat
9Sun12:589.51:239.07:080.17:170.66:057:17Waxing Crescent9Sun
10Mon1:299.51:578.87:420.17:510.86:047:18Waxing Crescent10Mon
11Tue2:029.42:348.68:180.28:280.96:027:19Waxing Crescent11Tue
12Wed2:389.33:148.48:590.39:091.16:007:20Waxing Crescent12Wed
13Thu3:209.24:008.39:440.49:561.35:587:21First Quarter13Thu
14Fri4:089.14:528.210:340.510:491.35:577:23First Quarter14Fri
15Sat5:039.15:508.311:300.511:481.25:557:24First Quarter15Sat
16Sun6:039.26:518.512:300.45:537:25First Quarter16Sun
17Mon7:099.37:549.012:511.01:320.15:527:26Waxing Gibbous17Mon
18Tue8:149.78:539.61:570.52:33-0.35:507:27Waxing Gibbous18Tue
19Wed9:1610.19:4710.33:00-0.13:29-0.75:487:29Waxing Gibbous19Wed
20Thu10:1310.510:3910.93:57-0.84:22-1.15:477:30Full Moon20Thu
21Fri11:0810.811:2911.34:52-1.45:13-1.35:457:31Full Moon21Fri
22Sat12:0210.85:45-1.86:04-1.35:447:32Full Moon22Sat
23Sun12:1911.512:5410.76:37-2.06:54-1.15:427:33Full Moon23Sun
24Mon1:0911.51:4710.47:28-1.97:44-0.75:417:35Waning Gibbous24Mon
25Tue1:5911.22:4010.08:21-1.58:36-0.25:397:36Waning Gibbous25Tue
26Wed2:5210.73:379.59:15-1.09:310.45:387:37Waning Gibbous26Wed
27Thu3:4810.14:369.010:13-0.410:310.95:367:38Third Quarter27Thu
28Fri4:479.55:368.711:130.111:331.35:357:39Third Quarter28Fri
29Sat5:499.16:378.512:140.55:337:41Third Quarter29Sat
30Sun6:518.77:368.512:381.51:150.85:327:42Third Quarter30Sun
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 6:06 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 transitional phase. Tonight's moon is 79% 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 shifting between spring and neap.

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 Waxing Gibbous (79% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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