Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 1:41 am (0.9 ft)
Next high tide : in 1h 42m at 7:18 pm (9.3 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (67% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 2017

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed12:3410.112:5410.36:40-0.97:03-1.06:155:28Waxing Crescent1Wed
2Thu1:1710.31:4110.07:28-1.07:49-0.86:145:30Waxing Crescent2Thu
3Fri2:0410.32:349.78:19-0.88:39-0.46:125:31Waxing Crescent3Fri
4Sat2:5610.13:329.29:16-0.69:350.06:105:32First Quarter4Sat
5Sun3:559.94:368.810:17-0.310:360.46:085:33First Quarter5Sun
6Mon4:589.75:458.611:24-0.111:430.66:075:35First Quarter6Mon
7Tue6:079.66:578.612:350.06:055:36Waxing Gibbous7Tue
8Wed7:179.68:028.812:540.61:44-0.26:035:37Waxing Gibbous8Wed
9Thu8:219.89:009.12:010.42:44-0.56:015:38Waxing Gibbous9Thu
10Fri9:1710.19:529.53:000.13:37-0.76:005:40Waxing Gibbous10Fri
11Sat10:0910.210:389.73:52-0.24:24-0.85:585:41Full Moon11Sat
12Sun11:5610.25:40-0.46:08-0.76:566:42Full Moon12Sun
13Mon12:219.812:4010.16:25-0.56:48-0.66:546:43Full Moon13Mon
14Tue1:019.81:219.87:07-0.47:26-0.36:536:45Waning Gibbous14Tue
15Wed1:399.72:019.47:47-0.38:030.16:516:46Waning Gibbous15Wed
16Thu2:169.52:419.08:270.08:410.56:496:47Waning Gibbous16Thu
17Fri2:549.23:248.69:080.39:210.96:476:48Waning Gibbous17Fri
18Sat3:368.94:108.29:530.710:051.36:456:50Third Quarter18Sat
19Sun4:218.65:017.810:411.010:531.66:446:51Third Quarter19Sun
20Mon5:118.45:567.611:341.211:461.96:426:52Third Quarter20Mon
21Tue6:068.36:547.512:301.36:406:53Third Quarter21Tue
22Wed7:058.37:537.712:441.91:301.26:386:54Third Quarter22Wed
23Thu8:058.58:478.01:441.72:271.06:366:56Waning Crescent23Thu
24Fri8:598.99:358.52:411.33:170.66:356:57Waning Crescent24Fri
25Sat9:479.310:189.13:310.84:020.16:336:58Waning Crescent25Sat
26Sun10:339.811:009.64:170.24:44-0.46:316:59New Moon26Sun
27Mon11:1810.211:4210.25:02-0.45:26-0.86:297:00New Moon27Mon
28Tue12:0310.45:48-0.96:09-1.06:277:02New Moon28Tue
29Wed12:2410.612:4910.56:34-1.36:54-1.16:267:03New Moon29Wed
30Thu1:0810.91:3710.57:21-1.57:40-1.06:247:04Waxing Crescent30Thu
31Fri1:5411.02:2710.28:11-1.58:29-0.76:227:05Waxing Crescent31Fri
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 10:29 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 67% 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 First Quarter (67% 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