Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, July 13, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 4h 02m at 4:24 am (-0.8 ft)
Next high tide : 10:39 am (9.0 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 5:10 am
Moon phase : New Moon (1% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Oct 2062

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:299.910:5110.44:14-0.54:34-0.46:386:20New Moon1Sun
2Mon11:1710.311:4210.35:02-0.65:26-0.76:396:19New Moon2Mon
3Tue12:0210.55:48-0.56:14-0.96:406:17New Moon3Tue
4Wed12:3010.112:4510.56:32-0.37:01-0.86:416:15Waxing Crescent4Wed
5Thu1:179.81:2810.37:150.17:47-0.56:426:13Waxing Crescent5Thu
6Fri2:039.32:1010.07:570.68:33-0.16:446:11Waxing Crescent6Fri
7Sat2:508.82:559.58:421.19:220.46:456:10Waxing Crescent7Sat
8Sun3:418.33:459.09:301.610:150.96:466:08First Quarter8Sun
9Mon4:357.94:418.710:232.011:121.26:476:06First Quarter9Mon
10Tue5:337.65:408.411:202.26:486:04First Quarter10Tue
11Wed6:317.56:408.312:121.512:212.36:506:03First Quarter11Wed
12Thu7:297.67:398.41:111.51:222.26:516:01Waxing Gibbous12Thu
13Fri8:227.98:338.62:071.42:191.96:525:59Waxing Gibbous13Fri
14Sat9:088.39:218.82:541.13:091.46:535:58Waxing Gibbous14Sat
15Sun9:488.810:039.13:340.93:511.06:545:56Waxing Gibbous15Sun
16Mon10:259.210:449.24:110.64:310.56:565:54Full Moon16Mon
17Tue11:009.611:239.34:450.55:090.16:575:53Full Moon17Tue
18Wed11:3410.05:210.35:48-0.36:585:51Full Moon18Wed
19Thu12:039.412:1110.25:580.36:29-0.56:595:49Full Moon19Thu
20Fri12:449.312:5010.46:380.37:12-0.67:015:48Waning Gibbous20Fri
21Sat1:269.21:3210.47:200.47:58-0.67:025:46Waning Gibbous21Sat
22Sun2:139.02:2010.38:070.68:49-0.47:035:45Waning Gibbous22Sun
23Mon3:058.73:1410.08:590.99:46-0.17:045:43Third Quarter23Mon
24Tue4:058.54:169.79:571.110:490.27:065:42Third Quarter24Tue
25Wed5:118.45:249.511:031.211:550.37:075:40Third Quarter25Wed
26Thu6:188.46:359.412:131.27:085:39Third Quarter26Thu
27Fri7:258.77:449.51:010.31:251.07:105:37Waning Crescent27Fri
28Sat8:269.28:489.62:050.22:320.57:115:36Waning Crescent28Sat
29Sun9:209.79:469.73:020.03:310.07:125:34Waning Crescent29Sun
30Mon10:0910.110:389.73:53-0.14:24-0.47:135:33New Moon30Mon
31Tue10:5410.411:279.64:400.05:12-0.77:155:31New Moon31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Show All
What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 7:31 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 1% 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 (1% 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