Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Sunday, June 28, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 4:59 pm (1.7 ft)
Next high tide : in 43m at 11:15 am (8.1 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 5:00 am
Moon phase : Full Moon (98% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Apr 2010

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu1:0311.01:3810.17:22-1.67:35-0.56:217:06Waning Gibbous1Thu
2Fri1:5010.82:289.68:11-1.28:230.16:197:07Waning Gibbous2Fri
3Sat2:3710.33:199.09:01-0.69:120.76:177:09Waning Gibbous3Sat
4Sun3:289.74:148.49:550.010:061.26:157:10Third Quarter4Sun
5Mon4:239.25:128.010:520.511:041.66:147:11Third Quarter5Mon
6Tue5:228.76:127.811:521.06:127:12Third Quarter6Tue
7Wed6:248.47:137.712:061.912:531.26:107:13Third Quarter7Wed
8Thu7:268.38:107.91:111.91:531.36:087:15Waning Crescent8Thu
9Fri8:258.39:008.22:131.72:461.26:077:16Waning Crescent9Fri
10Sat9:168.59:448.63:061.43:311.06:057:17Waning Crescent10Sat
11Sun10:028.610:238.93:521.04:100.96:037:18Waning Crescent11Sun
12Mon10:448.810:599.24:320.74:450.76:017:19New Moon12Mon
13Tue11:238.911:339.55:100.35:190.76:007:20New Moon13Tue
14Wed12:019.05:460.05:530.65:587:22New Moon14Wed
15Thu12:079.712:389.06:22-0.26:280.65:567:23New Moon15Thu
16Fri12:419.91:158.97:00-0.37:060.65:557:24Waxing Crescent16Fri
17Sat1:1710.01:548.87:39-0.47:460.75:537:25Waxing Crescent17Sat
18Sun1:5810.02:388.78:23-0.38:310.85:517:26Waxing Crescent18Sun
19Mon2:439.93:278.59:11-0.29:210.95:507:28Waxing Crescent19Mon
20Tue3:359.84:248.510:050.010:181.05:487:29First Quarter20Tue
21Wed4:349.65:258.511:040.111:211.05:467:30First Quarter21Wed
22Thu5:399.56:288.712:050.15:457:31First Quarter22Thu
23Fri6:479.47:329.112:280.91:080.15:437:32Waxing Gibbous23Fri
24Sat7:559.58:339.61:370.52:11-0.15:427:34Waxing Gibbous24Sat
25Sun8:599.79:2710.22:430.03:08-0.25:407:35Waxing Gibbous25Sun
26Mon9:579.910:1810.63:42-0.64:01-0.45:397:36Waxing Gibbous26Mon
27Tue10:5110.011:0710.94:36-1.04:51-0.45:377:37Full Moon27Tue
28Wed11:439.911:5411.05:27-1.35:39-0.35:367:38Full Moon28Wed
29Thu12:339.86:16-1.36:26-0.15:347:40Full Moon29Thu
30Fri12:4010.81:219.57:04-1.27:120.35:337:41Waning Gibbous30Fri
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 2:07 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 spring phase. Tonight's moon is 98% 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 Full Moon (98% 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