Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 14, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 53m at 5:21 am (-1.1 ft)
Next high tide : 11:37 am (9.3 ft)
Sunset today : 8:20 pm
Sunrise tomorrow : 5:11 am
Moon phase : New Moon (0% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 1990

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:137.79:219.13:011.23:011.76:037:16Waxing Gibbous1Sat
2Sun9:588.210:069.53:460.83:481.36:047:14Waxing Gibbous2Sun
3Mon10:398.610:489.84:260.44:310.86:057:13Full Moon3Mon
4Tue11:189.111:3010.05:040.05:140.36:067:11Full Moon4Tue
5Wed11:569.65:42-0.35:57-0.16:087:09Full Moon5Wed
6Thu12:1210.212:3410.16:20-0.56:40-0.56:097:07Full Moon6Thu
7Fri12:5410.21:1410.47:00-0.57:26-0.76:107:05Waning Gibbous7Fri
8Sat1:3910.11:5710.57:43-0.48:13-0.76:117:04Waning Gibbous8Sat
9Sun2:279.82:4410.58:29-0.29:05-0.66:127:02Waning Gibbous9Sun
10Mon3:199.43:3610.39:190.210:02-0.36:137:00Third Quarter10Mon
11Tue4:188.94:3610.110:150.611:040.06:146:58Third Quarter11Tue
12Wed5:238.55:419.811:170.96:156:56Third Quarter12Wed
13Thu6:328.36:519.712:120.312:251.16:176:54Waning Crescent13Thu
14Fri7:428.48:019.71:230.31:361.16:186:53Waning Crescent14Fri
15Sat8:488.69:059.82:310.22:450.86:196:51Waning Crescent15Sat
16Sun9:449.010:0210.03:300.03:440.56:206:49Waning Crescent16Sun
17Mon10:359.410:5310.04:21-0.24:370.26:216:47New Moon17Mon
18Tue11:209.611:4010.05:07-0.25:25-0.16:226:45New Moon18Tue
19Wed12:029.85:49-0.16:09-0.26:236:43New Moon19Wed
20Thu12:239.812:419.86:280.16:51-0.16:246:42New Moon20Thu
21Fri1:059.51:179.77:050.47:310.16:266:40Waxing Crescent21Fri
22Sat1:459.11:549.57:420.88:110.36:276:38Waxing Crescent22Sat
23Sun2:258.72:329.38:191.18:520.66:286:36Waxing Crescent23Sun
24Mon3:088.33:149.08:591.59:371.06:296:34Waxing Crescent24Mon
25Tue3:557.94:018.79:441.810:271.36:306:32First Quarter25Tue
26Wed4:477.64:548.510:342.111:221.56:316:31First Quarter26Wed
27Thu5:437.45:508.411:292.26:326:29First Quarter27Thu
28Fri6:417.46:498.412:191.612:262.26:346:27First Quarter28Fri
29Sat7:387.67:478.61:181.51:262.06:356:25Waxing Gibbous29Sat
30Sun8:308.08:419.02:121.22:231.66:366:23Waxing Gibbous30Sun
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 8:29 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 0% 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 (0% 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