Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 10:10 am (-0.5 ft)
Next high tide (tomorrow) : in 5h 46m at 3:47 am (10.2 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2022

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu5:089.05:269.311:090.911:450.26:544:04First Quarter1Thu
2Fri6:119.26:349.112:190.76:554:03Waxing Gibbous2Fri
3Sat7:109.47:389.012:470.31:250.46:564:03Waxing Gibbous3Sat
4Sun8:049.78:358.91:440.42:230.16:574:03Waxing Gibbous4Sun
5Mon8:529.99:268.92:350.53:14-0.26:584:03Waxing Gibbous5Mon
6Tue9:369.910:138.83:220.64:00-0.36:594:03Full Moon6Tue
7Wed10:189.910:578.74:050.84:44-0.47:004:02Full Moon7Wed
8Thu10:589.811:398.64:450.95:24-0.37:014:02Full Moon8Thu
9Fri11:379.75:241.16:03-0.17:024:02Full Moon9Fri
10Sat12:188.412:159.56:021.36:410.17:024:02Waning Gibbous10Sat
11Sun12:578.212:539.36:411.47:200.37:034:02Waning Gibbous11Sun
12Mon1:378.11:339.17:211.68:000.57:044:03Waning Gibbous12Mon
13Tue2:197.92:168.88:041.78:420.77:054:03Waning Gibbous13Tue
14Wed3:037.93:038.68:501.89:260.97:064:03Third Quarter14Wed
15Thu3:497.93:538.49:411.810:121.07:064:03Third Quarter15Thu
16Fri4:368.14:458.210:331.710:581.07:074:03Third Quarter16Fri
17Sat5:238.35:408.111:281.511:471.07:084:04Third Quarter17Sat
18Sun6:118.76:378.212:241.17:084:04Waning Crescent18Sun
19Mon7:019.27:338.412:390.91:200.67:094:04Waning Crescent19Mon
20Tue7:509.78:278.71:300.72:14-0.17:104:05Waning Crescent20Tue
21Wed8:3810.39:199.02:210.43:05-0.67:104:05Waning Crescent21Wed
22Thu9:2710.710:109.23:110.13:55-1.17:114:06New Moon22Thu
23Fri10:1811.111:029.44:01-0.14:46-1.57:114:06New Moon23Fri
24Sat11:1011.311:559.54:53-0.35:38-1.67:114:07New Moon24Sat
25Sun12:0311.35:46-0.46:31-1.67:124:08Waxing Crescent25Sun
26Mon12:489.512:5811.06:41-0.37:24-1.47:124:08Waxing Crescent26Mon
27Tue1:439.51:5510.67:38-0.18:20-1.17:124:09Waxing Crescent27Tue
28Wed2:419.42:5610.18:390.19:18-0.67:134:10First Quarter28Wed
29Thu3:429.34:009.59:430.410:17-0.27:134:10First Quarter29Thu
30Fri4:429.35:059.010:500.511:160.37:134:11First Quarter30Fri
31Sat5:429.36:118.611:580.57:134:12First Quarter31Sat
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 6:58 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 27% 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 Crescent (27% 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