Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, June 22, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 12:00 pm (0.5 ft)
Next high tide : in 5h 26m at 5:49 am (9.0 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 - Aug 2019

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:569.65:40-1.15:49-0.35:288:03New Moon1Thu
2Fri12:0711.312:4710.06:31-1.46:43-0.65:298:02New Moon2Fri
3Sat1:0011.41:3910.27:21-1.67:37-0.75:318:01Waxing Crescent3Sat
4Sun1:5411.22:3110.48:12-1.58:32-0.75:328:00Waxing Crescent4Sun
5Mon2:4910.93:2510.49:04-1.29:30-0.55:337:58Waxing Crescent5Mon
6Tue3:4710.44:2110.39:59-0.810:31-0.35:347:57First Quarter6Tue
7Wed4:489.85:1910.110:55-0.211:350.05:357:56First Quarter7Wed
8Thu5:519.26:189.911:540.35:367:54First Quarter8Thu
9Fri6:558.87:199.812:400.212:550.75:377:53Waxing Gibbous9Fri
10Sat8:018.58:209.71:460.31:581.05:387:52Waxing Gibbous10Sat
11Sun9:028.59:169.72:490.32:581.15:397:50Waxing Gibbous11Sun
12Mon9:578.510:089.73:450.23:511.15:417:49Waxing Gibbous12Mon
13Tue10:468.610:549.84:350.14:391.05:427:47Full Moon13Tue
14Wed11:318.711:379.85:190.15:230.95:437:46Full Moon14Wed
15Thu12:128.76:000.16:030.95:447:44Full Moon15Thu
16Fri12:179.712:498.86:370.16:410.95:457:43Full Moon16Fri
17Sat12:549.61:248.97:100.27:170.95:467:41Waning Gibbous17Sat
18Sun1:309.51:588.97:430.37:540.95:477:40Waning Gibbous18Sun
19Mon2:069.32:328.98:160.48:311.05:487:38Waning Gibbous19Mon
20Tue2:439.03:078.98:510.69:111.05:507:36Waning Gibbous20Tue
21Wed3:228.73:468.99:290.89:551.15:517:35Waning Gibbous21Wed
22Thu4:068.44:288.910:101.110:431.15:527:33Third Quarter22Thu
23Fri4:548.25:149.010:561.211:351.15:537:31Third Quarter23Fri
24Sat5:478.06:069.111:461.35:547:30Third Quarter24Sat
25Sun6:458.07:049.312:310.912:421.35:557:28Waning Crescent25Sun
26Mon7:488.28:049.71:320.71:431.15:567:26Waning Crescent26Mon
27Tue8:498.59:0410.22:340.32:440.75:577:25Waning Crescent27Tue
28Wed9:469.010:0110.73:32-0.33:420.25:597:23Waning Crescent28Wed
29Thu10:409.610:5611.14:26-0.84:37-0.36:007:21New Moon29Thu
30Fri11:3310.111:5011.45:18-1.35:32-0.86:017:20New Moon30Fri
31Sat12:2410.56:09-1.66:26-1.16:027:18New 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 8:54 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