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 6h 12m 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 1996

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun3:058.33:108.78:571.59:290.86:544:04Third Quarter1Sun
2Mon3:538.24:028.49:491.710:171.06:554:03Third Quarter2Mon
3Tue4:438.34:568.210:421.711:061.26:564:03Third Quarter3Tue
4Wed5:328.45:518.111:371.611:561.26:574:03Third Quarter4Wed
5Thu6:228.66:478.112:331.36:584:03Waning Crescent5Thu
6Fri7:118.97:408.312:471.11:270.96:594:03Waning Crescent6Fri
7Sat7:589.38:298.61:371.02:160.47:004:02Waning Crescent7Sat
8Sun8:429.89:158.92:230.73:01-0.17:014:02Waning Crescent8Sun
9Mon9:2510.210:019.23:080.43:46-0.67:024:02New Moon9Mon
10Tue10:1010.610:489.53:540.04:32-1.07:034:02New Moon10Tue
11Wed10:5610.911:359.74:40-0.25:19-1.37:044:03New Moon11Wed
12Thu11:4411.15:29-0.46:07-1.57:044:03Waxing Crescent12Thu
13Fri12:249.812:3411.06:19-0.56:57-1.57:054:03Waxing Crescent13Fri
14Sat1:159.81:2710.87:12-0.47:49-1.37:064:03Waxing Crescent14Sat
15Sun2:099.82:2410.48:08-0.28:44-1.07:074:03First Quarter15Sun
16Mon3:079.73:2510.09:090.09:43-0.67:074:03First Quarter16Mon
17Tue4:089.74:309.510:140.110:43-0.37:084:04First Quarter17Tue
18Wed5:109.75:379.211:210.211:450.07:094:04First Quarter18Wed
19Thu6:129.76:449.012:290.17:094:05Waxing Gibbous19Thu
20Fri7:129.87:488.912:480.31:34-0.17:104:05Waxing Gibbous20Fri
21Sat8:0910.08:459.01:490.32:32-0.37:104:06Waxing Gibbous21Sat
22Sun9:0010.19:379.02:430.43:24-0.57:114:06Waxing Gibbous22Sun
23Mon9:4810.110:249.03:320.44:12-0.67:114:07Full Moon23Mon
24Tue10:3210.111:099.04:170.44:55-0.67:124:07Full Moon24Tue
25Wed11:1410.011:508.95:000.55:36-0.57:124:08Full Moon25Wed
26Thu11:539.95:400.66:14-0.37:124:08Full Moon26Thu
27Fri12:288.812:319.76:180.76:50-0.27:134:09Waning Gibbous27Fri
28Sat1:068.71:099.46:570.97:270.17:134:10Waning Gibbous28Sat
29Sun1:448.61:499.17:371.08:050.37:134:11Waning Gibbous29Sun
30Mon2:248.52:318.88:191.28:450.67:134:12Waning Gibbous30Mon
31Tue3:078.53:178.49:051.39:300.87:134:12Third Quarter31Tue
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