Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, June 19, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:31 pm (0.4 ft)
Next high tide : in 4h 48m at 3:35 pm (9.5 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:57 am
Moon phase : Waxing Crescent (27% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2029

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:1210.911:3710.84:56-1.35:22-1.66:155:28Full Moon1Thu
2Fri12:0210.95:46-1.76:09-1.66:135:30Waning Gibbous2Fri
3Sat12:2411.112:5210.66:36-1.86:56-1.36:125:31Waning Gibbous3Sat
4Sun1:1211.01:4410.17:28-1.67:46-0.86:105:32Waning Gibbous4Sun
5Mon2:0310.72:419.58:24-1.28:40-0.26:085:34Third Quarter5Mon
6Tue2:5910.33:438.99:24-0.69:400.46:075:35Third Quarter6Tue
7Wed4:029.84:508.410:29-0.110:450.96:055:36Third Quarter7Wed
8Thu5:099.36:008.111:390.311:551.26:035:37Third Quarter8Thu
9Fri6:199.17:098.112:510.46:015:39Waning Crescent9Fri
10Sat7:279.18:108.31:071.21:550.46:005:40Waning Crescent10Sat
11Sun9:269.210:028.63:101.03:490.36:586:41Waning Crescent11Sun
12Mon10:179.310:478.94:030.74:350.16:566:42Waning Crescent12Mon
13Tue11:029.311:279.14:500.45:150.16:546:44New Moon13Tue
14Wed11:439.35:310.25:510.16:526:45New Moon14Wed
15Thu12:039.212:219.36:090.16:240.26:516:46New Moon15Thu
16Fri12:369.312:569.16:440.16:560.46:496:47New Moon16Fri
17Sat1:089.41:318.97:180.17:270.66:476:48Waxing Crescent17Sat
18Sun1:399.32:058.67:520.27:590.86:456:50Waxing Crescent18Sun
19Mon2:129.22:428.48:280.38:351.16:436:51Waxing Crescent19Mon
20Tue2:479.03:218.09:070.69:151.36:426:52Waxing Crescent20Tue
21Wed3:278.94:077.89:510.810:001.56:406:53First Quarter21Wed
22Thu4:148.74:587.610:410.910:511.76:386:55First Quarter22Thu
23Fri5:088.65:557.511:361.011:481.76:366:56First Quarter23Fri
24Sat6:078.76:567.712:360.96:346:57First Quarter24Sat
25Sun7:118.97:588.212:501.51:380.66:336:58Waxing Gibbous25Sun
26Mon8:159.38:548.81:551.02:370.26:316:59Waxing Gibbous26Mon
27Tue9:149.89:469.62:560.33:30-0.46:297:01Waxing Gibbous27Tue
28Wed10:0810.210:3510.43:52-0.44:19-0.96:277:02Full Moon28Wed
29Thu11:0110.611:2311.04:44-1.25:08-1.26:257:03Full Moon29Thu
30Fri11:5210.75:36-1.75:56-1.36:247:04Full Moon30Fri
31Sat12:1111.412:4410.76:27-2.06:45-1.26:227:05Full Moon31Sat
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 6:33 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 transitional phase. Tonight's moon is 27% 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 shifting between spring and neap.

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 Waxing Crescent (27% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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