Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, July 11, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 00m at 2:23 am (0.0 ft)
Next high tide : 8:36 am (8.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (11% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon7:438.27:599.31:260.51:371.56:037:16Waning Crescent1Mon
2Tue8:468.28:599.32:320.62:411.56:057:14Waning Crescent2Tue
3Wed9:428.39:529.43:290.53:371.36:067:12Waning Crescent3Wed
4Thu10:308.410:399.54:190.44:251.16:077:10Waning Crescent4Thu
5Fri11:138.611:229.65:020.35:081.06:087:08New Moon5Fri
6Sat11:518.85:410.35:470.86:097:07New Moon6Sat
7Sun12:009.612:278.96:150.36:240.76:107:05New Moon7Sun
8Mon12:379.51:009.06:470.46:590.76:117:03New Moon8Mon
9Tue1:119.31:319.17:180.57:330.76:127:01Waxing Crescent9Tue
10Wed1:469.12:029.17:490.78:090.76:146:59Waxing Crescent10Wed
11Thu2:218.82:359.18:220.98:470.86:156:58Waxing Crescent11Thu
12Fri2:598.53:119.08:591.29:290.96:166:56Waxing Crescent12Fri
13Sat3:428.23:538.99:401.410:161.06:176:54First Quarter13Sat
14Sun4:307.94:428.910:271.611:091.16:186:52First Quarter14Sun
15Mon5:257.75:389.011:201.76:196:50First Quarter15Mon
16Tue6:257.76:399.112:081.012:191.76:206:48First Quarter16Tue
17Wed7:307.97:459.51:120.81:231.46:216:47Waxing Gibbous17Wed
18Thu8:348.38:4810.02:160.42:280.96:236:45Waxing Gibbous18Thu
19Fri9:319.09:4710.53:15-0.13:280.36:246:43Waxing Gibbous19Fri
20Sat10:249.710:4210.94:09-0.74:24-0.46:256:41Full Moon20Sat
21Sun11:1410.311:3511.14:59-1.15:18-0.96:266:39Full Moon21Sun
22Mon12:0310.85:48-1.36:11-1.36:276:37Full Moon22Mon
23Tue12:2811.112:5211.16:36-1.37:03-1.56:286:36Waning Gibbous23Tue
24Wed1:2010.91:4011.17:25-1.07:56-1.46:296:34Waning Gibbous24Wed
25Thu2:1310.42:3010.98:14-0.68:50-1.06:306:32Waning Gibbous25Thu
26Fri3:089.83:2410.49:060.09:48-0.56:326:30Waning Gibbous26Fri
27Sat4:079.24:229.910:030.710:500.06:336:28Third Quarter27Sat
28Sun5:108.65:259.411:041.211:550.56:346:26Third Quarter28Sun
29Mon6:158.36:299.112:091.66:356:25Third Quarter29Mon
30Tue7:208.17:358.91:020.81:161.76:366:23Waning Crescent30Tue
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 5:29 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 spring phase. Tonight's moon is 11% 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 Waning Crescent (11% 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