Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, July 26, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 39m at 3:49 pm (1.8 ft)
Next high tide : 10:06 pm (9.2 ft)
Sunset today : 8:10 pm
Sunrise tomorrow : 5:22 am
Moon phase : Waxing Gibbous (92% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2075

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:348.84:559.210:351.011:150.86:047:15Third Quarter1Sun
2Mon5:308.35:488.911:271.46:057:14Third Quarter2Mon
3Tue6:297.96:458.712:131.112:231.86:067:12Third Quarter3Tue
4Wed7:297.87:438.71:141.31:221.96:077:10Waning Crescent4Wed
5Thu8:277.88:398.82:141.22:211.96:087:08Waning Crescent5Thu
6Fri9:198.09:289.03:081.03:131.76:097:06Waning Crescent6Fri
7Sat10:058.210:139.33:540.83:581.46:107:05Waning Crescent7Sat
8Sun10:468.510:549.54:350.54:391.16:117:03New Moon8Sun
9Mon11:258.811:339.75:120.35:170.86:137:01New Moon9Mon
10Tue12:019.15:470.15:550.56:146:59New Moon10Tue
11Wed12:119.812:359.46:210.06:340.26:156:57New Moon11Wed
12Thu12:489.91:109.66:56-0.17:130.06:166:56Waxing Crescent12Thu
13Fri1:279.81:469.87:33-0.17:55-0.16:176:54Waxing Crescent13Fri
14Sat2:089.72:269.98:130.08:40-0.26:186:52Waxing Crescent14Sat
15Sun2:539.43:1110.08:570.29:30-0.16:196:50Waxing Crescent15Sun
16Mon3:449.14:029.99:460.410:250.06:206:48First Quarter16Mon
17Tue4:418.94:599.810:410.611:260.16:226:46First Quarter17Tue
18Wed5:448.66:029.811:420.86:236:45First Quarter18Wed
19Thu6:518.67:109.812:310.212:470.96:246:43Waxing Gibbous19Thu
20Fri8:008.78:1910.01:400.11:560.76:256:41Waxing Gibbous20Fri
21Sat9:049.19:2210.32:46-0.23:020.36:266:39Waxing Gibbous21Sat
22Sun10:019.510:1910.63:44-0.54:01-0.16:276:37Waxing Gibbous22Sun
23Mon10:539.911:1210.74:37-0.84:55-0.46:286:35Full Moon23Mon
24Tue11:4110.25:26-0.85:46-0.76:306:33Full Moon24Tue
25Wed12:0210.612:2710.36:13-0.86:34-0.76:316:32Full Moon25Wed
26Thu12:5010.41:1110.36:57-0.57:21-0.66:326:30Waning Gibbous26Thu
27Fri1:3610.01:5410.17:39-0.18:07-0.36:336:28Waning Gibbous27Fri
28Sat2:229.52:369.88:220.48:530.16:346:26Waning Gibbous28Sat
29Sun3:099.03:219.49:060.99:420.56:356:24Waning Gibbous29Sun
30Mon4:008.54:109.09:541.410:350.96:366:22Third Quarter30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 6:57 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 92% 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 Waxing Gibbous (92% 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