Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 20m at 11:21 pm (0.8 ft)
Next high tide (tomorrow) : 5:29 am (8.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2054

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Thu11:2710.911:5311.15:11-1.35:36-1.46:386:21New Moon1Thu
2Fri12:1711.16:01-1.36:28-1.56:396:19New Moon2Fri
3Sat12:4510.91:0611.16:50-1.17:19-1.46:406:17Waxing Crescent3Sat
4Sun1:3710.61:5510.97:39-0.78:11-1.16:416:15Waxing Crescent4Sun
5Mon2:2910.12:4510.58:29-0.29:04-0.66:426:13Waxing Crescent5Mon
6Tue3:239.53:3810.09:210.410:00-0.16:446:12First Quarter6Tue
7Wed4:209.04:359.510:170.910:590.46:456:10First Quarter7Wed
8Thu5:208.55:349.111:161.46:466:08First Quarter8Thu
9Fri6:208.36:348.812:000.812:171.66:476:06First Quarter9Fri
10Sat7:198.27:358.71:011.01:201.76:486:05Waxing Gibbous10Sat
11Sun8:158.38:318.82:001.02:181.56:506:03Waxing Gibbous11Sun
12Mon9:058.69:218.92:520.93:101.26:516:01Waxing Gibbous12Mon
13Tue9:498.810:059.13:370.83:550.96:525:59Waxing Gibbous13Tue
14Wed10:299.110:469.24:160.64:350.66:535:58Waxing Gibbous14Wed
15Thu11:069.411:259.34:520.55:120.46:545:56Full Moon15Thu
16Fri11:409.65:260.45:470.26:565:54Full Moon16Fri
17Sat12:029.312:149.75:590.46:230.06:575:53Full Moon17Sat
18Sun12:389.312:479.86:340.47:00-0.16:585:51Full Moon18Sun
19Mon1:159.21:229.97:100.57:39-0.26:595:50Waning Gibbous19Mon
20Tue1:539.12:019.97:500.68:21-0.17:015:48Waning Gibbous20Tue
21Wed2:369.02:449.88:330.79:080.07:025:46Waning Gibbous21Wed
22Thu3:248.83:359.79:220.810:010.17:035:45Third Quarter22Thu
23Fri4:198.74:339.610:180.910:590.17:045:43Third Quarter23Fri
24Sat5:208.75:369.611:180.97:065:42Third Quarter24Sat
25Sun6:238.96:429.612:010.112:230.87:075:40Third Quarter25Sun
26Mon7:289.27:509.81:050.01:310.57:085:39Waning Crescent26Mon
27Tue8:299.78:5410.12:08-0.22:360.07:105:37Waning Crescent27Tue
28Wed9:2610.29:5210.33:07-0.53:36-0.67:115:36Waning Crescent28Wed
29Thu10:1810.710:4610.54:00-0.84:30-1.17:125:34New Moon29Thu
30Fri11:0711.011:3810.54:51-0.95:22-1.47:135:33New Moon30Fri
31Sat11:5511.15:40-0.86:12-1.47:155:32New 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 2:25 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 52% 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 Third Quarter (52% 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