Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 1:41 am (0.9 ft)
Next high tide : in 1h 20m at 7:18 pm (9.3 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jun 2036

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun5:0410.05:519.611:25-0.511:530.55:008:15First Quarter1Sun
2Mon6:109.76:539.612:26-0.25:008:16First Quarter2Mon
3Tue7:169.47:549.81:010.51:290.14:598:17Waxing Gibbous3Tue
4Wed8:219.38:5010.02:080.32:290.24:598:17Waxing Gibbous4Wed
5Thu9:219.29:4210.23:090.13:230.34:598:18Waxing Gibbous5Thu
6Fri10:159.210:3010.24:03-0.24:130.44:588:19Waxing Gibbous6Fri
7Sat11:059.211:1510.24:52-0.34:590.54:588:19Full Moon7Sat
8Sun11:529.111:5710.25:38-0.45:430.74:588:20Full Moon8Sun
9Mon12:369.06:21-0.36:240.94:578:21Full Moon9Mon
10Tue12:3710.01:178.97:01-0.27:041.04:578:21Full Moon10Tue
11Wed1:169.91:578.77:400.07:431.24:578:22Waning Gibbous11Wed
12Thu1:559.62:378.68:180.28:241.44:578:22Waning Gibbous12Thu
13Fri2:359.43:198.58:580.49:061.54:578:23Waning Gibbous13Fri
14Sat3:179.14:028.49:390.69:521.74:578:23Waning Gibbous14Sat
15Sun4:028.94:478.410:220.710:401.74:578:23Third Quarter15Sun
16Mon4:508.65:328.511:060.911:301.74:578:24Third Quarter16Mon
17Tue5:418.56:198.611:521.04:578:24Third Quarter17Tue
18Wed6:338.47:078.912:231.512:411.04:578:25Third Quarter18Wed
19Thu7:298.47:569.31:181.31:321.04:578:25Waning Crescent19Thu
20Fri8:258.58:469.82:140.82:240.84:588:25Waning Crescent20Fri
21Sat9:198.89:3410.33:070.33:150.54:588:25Waning Crescent21Sat
22Sun10:119.110:2310.73:58-0.34:050.24:588:25New Moon22Sun
23Mon11:039.411:1311.14:48-0.84:56-0.14:588:26New Moon23Mon
24Tue11:559.75:39-1.35:48-0.34:598:26New Moon24Tue
25Wed12:0511.412:489.96:31-1.56:41-0.44:598:26New Moon25Wed
26Thu12:5811.51:4110.07:23-1.67:35-0.45:008:26Waxing Crescent26Thu
27Fri1:5211.32:3610.18:16-1.68:31-0.35:008:26Waxing Crescent27Fri
28Sat2:4811.03:3310.09:10-1.39:31-0.15:008:26Waxing Crescent28Sat
29Sun3:4710.64:3210.010:07-1.010:330.15:018:26First Quarter29Sun
30Mon4:5010.15:319.911:05-0.611:380.35:018:25First Quarter30Mon
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 10:29 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 transitional phase. Tonight's moon is 67% 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 First Quarter (67% 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