Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, June 23, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 5h 23m at 12:55 pm (1.0 ft)
Next high tide : 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 - Sep 2035

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat11:0410.011:2311.04:49-1.05:04-0.66:037:16New Moon1Sat
2Sun11:5510.35:40-1.25:57-0.76:047:14New Moon2Sun
3Mon12:1510.912:4410.46:28-1.16:47-0.76:057:12New Moon3Mon
4Tue1:0410.71:3010.37:15-0.97:36-0.66:077:11Waxing Crescent4Tue
5Wed1:5210.32:1510.18:00-0.58:24-0.36:087:09Waxing Crescent5Wed
6Thu2:409.83:019.88:450.09:140.16:097:07Waxing Crescent6Thu
7Fri3:299.23:499.49:320.510:050.56:107:05First Quarter7Fri
8Sat4:228.74:409.110:211.010:590.96:117:03First Quarter8Sat
9Sun5:168.35:338.811:131.411:561.26:127:02First Quarter9Sun
10Mon6:138.06:298.712:081.76:137:00First Quarter10Mon
11Tue7:117.87:268.612:551.31:061.86:146:58First Quarter11Tue
12Wed8:087.98:228.81:541.32:041.86:166:56Waxing Gibbous12Wed
13Thu9:018.19:139.02:481.12:571.56:176:54Waxing Gibbous13Thu
14Fri9:478.49:589.33:340.83:431.26:186:52Waxing Gibbous14Fri
15Sat10:288.810:399.54:150.54:240.86:196:51Waxing Gibbous15Sat
16Sun11:079.111:199.84:520.35:040.56:206:49Full Moon16Sun
17Mon11:449.411:589.95:290.05:430.16:216:47Full Moon17Mon
18Tue12:209.76:05-0.26:23-0.26:226:45Full Moon18Tue
19Wed12:3810.012:5710.06:43-0.37:04-0.46:236:43Waning Gibbous19Wed
20Thu1:1810.01:3610.27:23-0.37:48-0.56:256:41Waning Gibbous20Thu
21Fri2:019.92:1910.38:05-0.28:35-0.56:266:40Waning Gibbous21Fri
22Sat2:499.63:0610.28:520.09:27-0.46:276:38Waning Gibbous22Sat
23Sun3:429.44:0110.19:440.210:24-0.26:286:36Third Quarter23Sun
24Mon4:419.15:0110.010:420.511:260.06:296:34Third Quarter24Mon
25Tue5:458.96:069.911:440.66:306:32Third Quarter25Tue
26Wed6:538.97:149.912:310.012:510.76:316:30Waning Crescent26Wed
27Thu8:009.18:2210.01:390.02:000.56:336:29Waning Crescent27Thu
28Fri9:029.49:2310.22:44-0.23:040.16:346:27Waning Crescent28Fri
29Sat9:589.810:1910.43:41-0.54:02-0.26:356:25Waning Crescent29Sat
30Sun10:4810.111:1010.54:33-0.74:54-0.56:366:23New Moon30Sun
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 4:06 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