Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 10, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 3h 02m at 2:23 am (0.0 ft)
Next high tide (tomorrow) : 8:36 am (8.5 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Aug 2059

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri5:499.26:1610.011:510.35:298:03Third Quarter1Fri
2Sat6:548.77:179.812:390.212:520.85:308:02Waning Crescent2Sat
3Sun8:008.48:189.71:460.31:551.15:318:01Waning Crescent3Sun
4Mon9:038.39:169.72:500.22:561.25:327:59Waning Crescent4Mon
5Tue10:008.410:099.83:470.23:511.25:337:58Waning Crescent5Tue
6Wed10:518.410:579.84:390.14:411.15:347:57New Moon6Wed
7Thu11:378.511:429.85:250.15:261.15:357:55New Moon7Thu
8Fri12:198.66:070.16:081.05:377:54New Moon8Fri
9Sat12:239.712:588.76:450.16:471.05:387:53New Moon9Sat
10Sun1:019.61:338.77:200.27:251.05:397:51Waxing Crescent10Sun
11Mon1:389.52:088.87:530.38:021.15:407:50Waxing Crescent11Mon
12Tue2:149.22:428.88:270.58:411.15:417:48Waxing Crescent12Tue
13Wed2:528.93:188.89:010.79:221.25:427:47Waxing Crescent13Wed
14Thu3:328.63:568.89:391.010:061.35:437:45First Quarter14Thu
15Fri4:178.24:388.810:191.210:531.35:447:44First Quarter15Fri
16Sat5:057.95:238.811:041.511:451.35:467:42First Quarter16Sat
17Sun5:587.76:148.911:531.65:477:41First Quarter17Sun
18Mon6:567.67:119.112:411.212:481.75:487:39Waxing Gibbous18Mon
19Tue7:587.88:119.41:431.01:481.55:497:38Waxing Gibbous19Tue
20Wed8:598.19:109.92:440.62:491.15:507:36Waxing Gibbous20Wed
21Thu9:558.510:0610.53:400.03:460.65:517:34Waxing Gibbous21Thu
22Fri10:489.111:0010.94:33-0.54:410.15:527:33Full Moon22Fri
23Sat11:399.711:5311.25:24-1.05:34-0.45:537:31Full Moon23Sat
24Sun12:2910.16:14-1.36:28-0.85:557:29Full Moon24Sun
25Mon12:4611.31:1910.57:02-1.47:21-1.05:567:28Waning Gibbous25Mon
26Tue1:3811.12:0810.77:51-1.38:15-1.05:577:26Waning Gibbous26Tue
27Wed2:3210.72:5910.68:41-0.99:12-0.85:587:24Waning Gibbous27Wed
28Thu3:2810.13:5310.49:33-0.410:11-0.55:597:23Third Quarter28Thu
29Fri4:289.54:5110.110:290.211:13-0.16:007:21Third Quarter29Fri
30Sat5:318.95:519.711:280.86:017:19Third Quarter30Sat
31Sun6:368.46:549.512:180.312:311.26:027:17Third Quarter31Sun
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 5:29 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 20% 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 (20% 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