Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 11:21 pm (0.8 ft)
Next high tide : in 3h 50m at 5:08 pm (9.3 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 - Mar 2000

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed7:388.58:207.71:211.82:081.06:155:28Waning Crescent1Wed
2Thu8:298.79:078.12:141.52:550.76:135:30Waning Crescent2Thu
3Fri9:159.19:488.43:001.23:360.36:125:31Waning Crescent3Fri
4Sat9:569.410:278.73:410.84:130.06:105:32New Moon4Sat
5Sun10:359.611:039.14:190.54:48-0.26:085:34New Moon5Sun
6Mon11:139.811:389.44:570.15:23-0.46:075:35New Moon6Mon
7Tue11:509.95:36-0.25:59-0.56:055:36New Moon7Tue
8Wed12:129.712:299.96:16-0.46:36-0.66:035:37Waxing Crescent8Wed
9Thu12:499.91:109.86:58-0.67:17-0.56:015:39Waxing Crescent9Thu
10Fri1:2910.01:569.57:43-0.68:01-0.26:005:40Waxing Crescent10Fri
11Sat2:1410.02:479.28:33-0.58:510.15:585:41First Quarter11Sat
12Sun3:069.83:458.89:29-0.39:460.45:565:42First Quarter12Sun
13Mon4:049.74:508.510:31-0.110:480.75:545:44First Quarter13Mon
14Tue5:099.56:008.411:380.011:560.85:525:45First Quarter14Tue
15Wed6:199.57:118.612:490.05:515:46Waxing Gibbous15Wed
16Thu7:309.78:158.91:070.71:57-0.35:495:47Waxing Gibbous16Thu
17Fri8:3310.09:129.42:140.32:55-0.65:475:49Waxing Gibbous17Fri
18Sat9:3010.310:049.83:12-0.23:48-0.95:455:50Full Moon18Sat
19Sun10:2210.510:5110.04:05-0.54:36-1.05:435:51Full Moon19Sun
20Mon11:1110.411:3510.24:55-0.85:21-0.95:425:52Full Moon20Mon
21Tue11:5710.25:42-0.86:03-0.75:405:53Full Moon21Tue
22Wed12:1710.112:419.96:26-0.76:44-0.35:385:55Waning Gibbous22Wed
23Thu12:579.91:249.47:09-0.57:250.25:365:56Waning Gibbous23Thu
24Fri1:389.62:098.97:53-0.18:060.75:345:57Waning Gibbous24Fri
25Sat2:209.32:578.48:390.38:511.25:335:58Waning Gibbous25Sat
26Sun3:068.93:488.09:280.79:401.65:315:59Third Quarter26Sun
27Mon3:578.54:437.710:211.110:331.95:296:01Third Quarter27Mon
28Tue4:528.35:427.511:191.311:322.15:276:02Third Quarter28Tue
29Wed5:518.26:427.612:201.45:256:03Third Quarter29Wed
30Thu6:528.37:377.812:332.01:181.25:236:04Waning Crescent30Thu
31Fri7:478.68:268.21:321.72:090.95:226:05Waning Crescent31Fri
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 8:14 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 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