Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 1:19 am (0.3 ft)
Next high tide : in 24m at 6:51 pm (9.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat2:249.42:3610.48:180.29:03-0.86:544:04First Quarter1Sat
2Sun3:279.23:419.99:220.510:06-0.46:554:03First Quarter2Sun
3Mon4:319.14:489.510:300.711:090.06:564:03First Quarter3Mon
4Tue5:349.15:559.211:390.86:574:03First Quarter4Tue
5Wed6:369.27:019.012:120.212:470.66:584:03Waxing Gibbous5Wed
6Thu7:339.48:018.91:120.41:490.46:594:02Waxing Gibbous6Thu
7Fri8:249.68:548.82:060.52:430.17:004:02Waxing Gibbous7Fri
8Sat9:099.79:428.82:540.63:31-0.17:014:02Waxing Gibbous8Sat
9Sun9:519.810:268.73:380.74:14-0.27:024:02Full Moon9Sun
10Mon10:319.811:088.74:180.84:55-0.27:034:02Full Moon10Mon
11Tue11:099.711:478.54:561.05:33-0.17:044:02Full Moon11Tue
12Wed11:459.65:331.16:090.07:044:03Full Moon12Wed
13Thu12:258.412:229.46:091.26:450.17:054:03Waning Gibbous13Thu
14Fri1:028.312:589.36:461.47:220.37:064:03Waning Gibbous14Fri
15Sat1:408.11:379.17:251.58:010.57:074:03Waning Gibbous15Sat
16Sun2:218.02:208.88:081.68:430.67:074:03Waning Gibbous16Sun
17Mon3:058.03:068.78:551.79:280.77:084:04Third Quarter17Mon
18Tue3:518.13:578.59:451.610:150.87:094:04Third Quarter18Tue
19Wed4:388.34:508.410:391.511:040.87:094:05Third Quarter19Wed
20Thu5:278.65:478.411:351.211:560.77:104:05Third Quarter20Thu
21Fri6:199.16:478.512:340.77:104:06Waning Crescent21Fri
22Sat7:119.67:458.812:500.51:320.17:114:06Waning Crescent22Sat
23Sun8:0310.28:419.11:440.22:27-0.67:114:07Waning Crescent23Sun
24Mon8:5510.79:359.52:37-0.13:20-1.27:124:07New Moon24Mon
25Tue9:4611.210:289.73:29-0.44:13-1.67:124:08New Moon25Tue
26Wed10:3911.511:229.94:22-0.65:05-1.97:124:09New Moon26Wed
27Thu11:3211.55:15-0.75:58-1.97:124:09Waxing Crescent27Thu
28Fri12:169.912:2611.46:09-0.76:51-1.87:134:10Waxing Crescent28Fri
29Sat1:109.81:2211.07:04-0.57:46-1.47:134:11Waxing Crescent29Sat
30Sun2:069.72:2010.58:02-0.28:42-1.07:134:12Waxing Crescent30Sun
31Mon3:059.53:219.99:040.19:42-0.57:134:12First Quarter31Mon
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 10:05 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 30% 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 Waning Crescent (30% 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