Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 4, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 02m at 8:53 pm (1.3 ft)
Next high tide (tomorrow) : 3:03 am (9.3 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 5:03 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jun 2049

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue12:0410.012:448.86:30-0.26:311.05:008:15New Moon1Tue
2Wed12:449.91:248.77:09-0.17:101.25:008:16Waxing Crescent2Wed
3Thu1:239.72:038.67:470.17:491.34:598:16Waxing Crescent3Thu
4Fri2:029.52:438.58:250.38:301.44:598:17Waxing Crescent4Fri
5Sat2:429.33:248.49:030.59:131.64:598:18Waxing Crescent5Sat
6Sun3:249.04:068.49:440.69:591.64:588:19Waxing Crescent6Sun
7Mon4:098.74:508.510:260.810:471.74:588:19First Quarter7Mon
8Tue4:588.55:358.611:101.011:381.64:588:20First Quarter8Tue
9Wed5:488.36:218.811:561.14:588:20First Quarter9Wed
10Thu6:428.27:109.112:311.412:451.14:578:21First Quarter10Thu
11Fri7:398.28:019.51:271.11:371.14:578:22Waxing Gibbous11Fri
12Sat8:368.48:5210.02:240.62:310.94:578:22Waxing Gibbous12Sat
13Sun9:308.79:4210.43:180.13:240.64:578:23Waxing Gibbous13Sun
14Mon10:249.010:3310.94:10-0.54:150.34:578:23Full Moon14Mon
15Tue11:169.411:2611.25:01-0.95:080.04:578:23Full Moon15Tue
16Wed12:109.75:53-1.36:01-0.34:578:24Full Moon16Wed
17Thu12:1911.41:039.96:45-1.56:55-0.44:578:24Waning Gibbous17Thu
18Fri1:1311.41:5610.17:37-1.67:51-0.44:578:25Waning Gibbous18Fri
19Sat2:0711.22:5010.18:30-1.48:48-0.34:588:25Waning Gibbous19Sat
20Sun3:0410.83:4710.19:24-1.19:48-0.14:588:25Third Quarter20Sun
21Mon4:0410.34:4510.110:20-0.710:510.14:588:25Third Quarter21Mon
22Tue5:069.85:4310.011:18-0.311:550.34:588:25Third Quarter22Tue
23Wed6:099.36:429.912:160.24:588:26Third Quarter23Wed
24Thu7:138.97:409.81:000.41:150.64:598:26Waning Crescent24Thu
25Fri8:168.68:379.82:050.42:150.94:598:26Waning Crescent25Fri
26Sat9:158.59:299.83:040.33:101.15:008:26Waning Crescent26Sat
27Sun10:088.510:189.83:580.24:011.15:008:26Waning Crescent27Sun
28Mon10:578.511:029.84:460.14:471.25:008:26New Moon28Mon
29Tue11:418.511:449.85:300.15:291.25:018:26New Moon29Tue
30Wed12:238.66:100.16:091.25:018:25New Moon30Wed
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 11:58 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 spring phase. Tonight's moon is 81% 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 Waning Gibbous (81% 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