Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 51m at 12:39 am (0.9 ft)
Next high tide (tomorrow) : 6:49 am (8.6 ft)
Sunset today : 8:25 pm
Sunrise tomorrow : 4:58 am
Moon phase : First Quarter (58% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jun 2018

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:279.72:088.67:510.07:541.35:008:14Waning Gibbous1Fri
2Sat2:059.52:488.58:290.28:341.55:008:15Waning Gibbous2Sat
3Sun2:459.33:318.39:090.59:171.74:598:16Waning Gibbous3Sun
4Mon3:299.04:168.39:520.710:041.84:598:17Waning Gibbous4Mon
5Tue4:158.85:028.310:370.810:541.84:598:18Third Quarter5Tue
6Wed5:058.65:498.411:230.911:461.84:588:18Third Quarter6Wed
7Thu5:568.56:378.612:101.04:588:19Third Quarter7Thu
8Fri6:518.57:268.912:401.61:000.94:588:20Third Quarter8Fri
9Sat7:478.68:159.41:361.21:520.84:588:20Waning Crescent9Sat
10Sun8:428.89:049.92:310.72:430.64:578:21Waning Crescent10Sun
11Mon9:369.19:5110.43:230.13:330.34:578:21Waning Crescent11Mon
12Tue10:279.410:4010.94:14-0.54:230.04:578:22New Moon12Tue
13Wed11:199.611:3011.35:04-1.15:13-0.24:578:22New Moon13Wed
14Thu12:129.95:56-1.46:05-0.34:578:23New Moon14Thu
15Fri12:2111.51:0510.06:48-1.66:58-0.44:578:23Waxing Crescent15Fri
16Sat1:1511.51:5910.07:40-1.67:53-0.34:578:24Waxing Crescent16Sat
17Sun2:0911.32:559.98:34-1.58:50-0.14:578:24Waxing Crescent17Sun
18Mon3:0710.93:549.89:31-1.29:510.14:578:24Waxing Crescent18Mon
19Tue4:0810.44:559.810:30-0.810:550.44:578:25First Quarter19Tue
20Wed5:119.95:559.711:29-0.44:588:25First Quarter20Wed
21Thu6:159.56:549.712:010.512:290.04:588:25First Quarter21Thu
22Fri7:209.17:539.71:070.51:290.44:588:25Waxing Gibbous22Fri
23Sat8:238.98:489.82:110.52:270.64:588:25Waxing Gibbous23Sat
24Sun9:218.89:389.93:100.33:200.84:598:26Waxing Gibbous24Sun
25Mon10:138.710:249.94:030.14:080.94:598:26Waxing Gibbous25Mon
26Tue11:018.711:079.94:500.04:531.04:598:26Full Moon26Tue
27Wed11:468.711:489.85:330.05:341.15:008:26Full Moon27Wed
28Thu12:278.66:140.06:141.25:008:26Full Moon28Thu
29Fri12:279.81:078.66:520.16:521.25:018:26Full Moon29Fri
30Sat1:059.71:448.67:280.17:291.35:018:25Waning Gibbous30Sat
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 3:44 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 neap phase. Tonight's moon is 58% 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 minimum.

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 (58% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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