Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 4:29 pm (0.2 ft)
Next high tide : in 52m at 10:39 am (9.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - May 2063

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue1:1310.21:558.87:40-0.57:450.85:317:42Waxing Crescent1Tue
2Wed1:5710.12:438.68:26-0.48:330.95:307:43Waxing Crescent2Wed
3Thu2:4610.03:368.59:18-0.29:271.15:287:45Waxing Crescent3Thu
4Fri3:439.84:368.510:15-0.110:281.25:277:46First Quarter4Fri
5Sat4:459.65:398.611:150.111:331.15:267:47First Quarter5Sat
6Sun5:519.46:428.812:170.25:247:48First Quarter6Sun
7Mon7:009.47:449.312:421.01:190.15:237:49Waxing Gibbous7Mon
8Tue8:079.48:429.81:510.62:200.15:227:50Waxing Gibbous8Tue
9Wed9:099.59:3410.22:550.13:150.05:217:51Waxing Gibbous9Wed
10Thu10:069.510:2310.63:52-0.44:060.05:197:53Waxing Gibbous10Thu
11Fri10:599.611:1010.74:44-0.84:540.15:187:54Full Moon11Fri
12Sat11:499.511:5510.75:33-1.05:410.35:177:55Full Moon12Sat
13Sun12:379.36:21-1.06:260.55:167:56Full Moon13Sun
14Mon12:4010.51:249.07:07-0.77:110.85:157:57Waning Gibbous14Mon
15Tue1:2410.22:098.77:52-0.47:551.15:147:58Waning Gibbous15Tue
16Wed2:089.82:558.48:370.08:411.55:137:59Waning Gibbous16Wed
17Thu2:549.43:448.29:240.49:301.75:128:00Waning Gibbous17Thu
18Fri3:439.04:358.010:130.810:222.05:118:01Third Quarter18Fri
19Sat4:368.75:267.911:021.111:172.15:108:02Third Quarter19Sat
20Sun5:308.46:168.011:511.35:098:03Third Quarter20Sun
21Mon6:258.27:068.212:132.112:411.45:088:05Third Quarter21Mon
22Tue7:208.07:548.51:111.91:301.55:078:06Waning Crescent22Tue
23Wed8:158.08:398.82:061.62:171.45:068:07Waning Crescent23Wed
24Thu9:068.19:219.22:571.23:021.45:068:07Waning Crescent24Thu
25Fri9:538.310:019.63:420.83:441.25:058:08Waning Crescent25Fri
26Sat10:388.510:429.94:250.34:261.15:048:09New Moon26Sat
27Sun11:238.611:2410.25:08-0.15:080.95:038:10New Moon27Sun
28Mon12:088.85:52-0.45:530.85:038:11New Moon28Mon
29Tue12:0810.412:548.96:37-0.66:400.75:028:12New Moon29Tue
30Wed12:5510.61:428.97:24-0.77:290.65:018:13Waxing Crescent30Wed
31Thu1:4410.62:329.08:14-0.78:220.75:018:14Waxing Crescent31Thu
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 1:34 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 1% 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 New Moon (1% 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