Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, August 2, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 8:28 pm (0.6 ft)
Next high tide : in 37m at 2:27 pm (9.2 ft)
Sunset today : 8:02 pm
Sunrise tomorrow : 5:30 am
Moon phase : Waning Gibbous (84% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jul 2085

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun6:098.06:338.912:091.45:028:25First Quarter1Sun
2Mon7:047.87:249.212:531.31:001.45:038:25Waxing Gibbous2Mon
3Tue8:037.98:179.51:501.01:541.45:038:25Waxing Gibbous3Tue
4Wed9:008.19:109.92:470.62:491.15:048:25Waxing Gibbous4Wed
5Thu9:548.410:0310.43:410.13:430.85:058:24Waxing Gibbous5Thu
6Fri10:478.810:5510.84:32-0.44:360.45:058:24Full Moon6Fri
7Sat11:399.211:4711.15:23-0.95:290.05:068:23Full Moon7Sat
8Sun12:309.66:14-1.26:22-0.35:078:23Full Moon8Sun
9Mon12:4011.31:2110.07:04-1.47:16-0.55:088:23Waning Gibbous9Mon
10Tue1:3311.22:1210.27:54-1.58:11-0.55:088:22Waning Gibbous10Tue
11Wed2:2711.03:0510.48:44-1.39:08-0.45:098:21Waning Gibbous11Wed
12Thu3:2310.54:0010.49:37-0.910:08-0.35:108:21Third Quarter12Thu
13Fri4:2310.04:5610.310:32-0.411:10-0.15:118:20Third Quarter13Fri
14Sat5:249.45:5410.111:280.15:128:20Third Quarter14Sat
15Sun6:288.96:539.912:140.112:270.65:138:19Third Quarter15Sun
16Mon7:338.57:549.81:200.31:290.95:148:18Waning Crescent16Mon
17Tue8:378.48:539.72:250.32:311.15:148:17Waning Crescent17Tue
18Wed9:368.39:479.83:240.33:281.25:158:17Waning Crescent18Wed
19Thu10:288.410:369.84:170.24:191.25:168:16Waning Crescent19Thu
20Fri11:158.511:219.85:040.15:051.15:178:15New Moon20Fri
21Sat11:588.65:470.15:471.15:188:14New Moon21Sat
22Sun12:029.812:388.76:250.16:271.05:198:13New Moon22Sun
23Mon12:419.71:148.77:010.27:051.05:208:12New Moon23Mon
24Tue1:189.51:498.87:340.27:421.05:218:11Waxing Crescent24Tue
25Wed1:549.32:238.98:070.48:191.15:228:10Waxing Crescent25Wed
26Thu2:309.12:588.98:400.58:591.15:238:09Waxing Crescent26Thu
27Fri3:098.83:358.99:170.79:411.25:248:08Waxing Crescent27Fri
28Sat3:518.54:158.99:561.010:281.25:258:07First Quarter28Sat
29Sun4:378.24:599.010:391.211:171.25:268:06First Quarter29Sun
30Mon5:288.05:489.111:271.35:288:05First Quarter30Mon
31Tue6:237.86:429.312:121.112:191.45:298:03First 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 5:27 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 84% 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 Gibbous (84% 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