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 - Oct 1994

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat8:248.58:419.32:050.92:221.06:376:21Waning Crescent1Sat
2Sun9:129.19:329.72:560.43:150.46:386:20Waning Crescent2Sun
3Mon9:589.810:2010.23:43-0.14:04-0.36:396:18New Moon3Mon
4Tue10:4310.411:0910.54:28-0.54:53-0.96:416:16New Moon4Tue
5Wed11:2810.911:5810.65:14-0.85:42-1.46:426:14New Moon5Wed
6Thu12:1511.36:01-1.06:32-1.66:436:12New Moon6Thu
7Fri12:4810.61:0411.46:49-1.07:23-1.66:446:11Waxing Crescent7Fri
8Sat1:3910.41:5411.37:39-0.88:16-1.46:456:09Waxing Crescent8Sat
9Sun2:3310.12:4911.08:32-0.49:12-1.06:476:07Waxing Crescent9Sun
10Mon3:329.73:4910.59:300.010:14-0.66:486:05First Quarter10Mon
11Tue4:369.34:5410.110:330.511:19-0.26:496:04First Quarter11Tue
12Wed5:429.06:029.711:400.76:506:02First Quarter12Wed
13Thu6:488.97:109.512:260.112:500.96:516:00Waxing Gibbous13Thu
14Fri7:529.08:149.41:320.31:580.86:535:59Waxing Gibbous14Fri
15Sat8:509.29:129.42:330.32:580.56:545:57Waxing Gibbous15Sat
16Sun9:419.410:039.43:260.33:510.36:555:55Waxing Gibbous16Sun
17Mon10:259.610:499.44:120.34:370.16:565:54Full Moon17Mon
18Tue11:069.711:329.34:530.45:200.06:585:52Full Moon18Tue
19Wed11:449.85:310.55:590.06:595:50Full Moon19Wed
20Thu12:119.212:199.76:070.76:350.07:005:49Full Moon20Thu
21Fri12:499.012:549.66:420.87:110.17:015:47Waning Gibbous21Fri
22Sat1:268.81:299.57:161.07:470.37:035:45Waning Gibbous22Sat
23Sun2:038.62:059.37:521.28:250.57:045:44Waning Gibbous23Sun
24Mon2:428.32:449.18:311.49:060.77:055:42Waning Gibbous24Mon
25Tue3:248.13:278.99:141.69:510.97:065:41Waning Gibbous25Tue
26Wed4:118.04:168.710:021.710:401.07:085:39Third Quarter26Wed
27Thu5:018.05:108.710:541.811:311.07:095:38Third Quarter27Thu
28Fri5:548.16:068.711:501.67:105:36Third Quarter28Fri
29Sat6:478.57:058.912:250.912:481.37:125:35Waning Crescent29Sat
30Sun6:419.07:049.21:200.712:480.86:134:34Waning Crescent30Sun
31Mon7:339.68:009.61:140.31:450.16:144:32Waning Crescent31Mon
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