43.7418’ N, 70.0145’ W

South Harpswell, ME

47°
H -°
L 34°
NW
19mph
Low tide
10:57 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, October 17, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 6h 07m at 10:57 pm (1.4 ft)
Next high tide (tomorrow) : 5:19 am (7.5 ft)
Sunset today : 5:53 pm
Sunrise tomorrow : 6:57 am
Moon phase : First Quarter (41% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Dec 1919

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon4:478.75:058.710:531.111:170.66:534:04First Quarter1Mon
2Tue5:399.16:058.811:520.76:544:04Waxing Gibbous2Tue
3Wed6:349.67:079.012:120.412:530.26:554:04Waxing Gibbous3Wed
4Thu7:3010.28:069.31:090.21:52-0.56:564:03Waxing Gibbous4Thu
5Fri8:2410.89:029.62:05-0.12:48-1.16:574:03Waxing Gibbous5Fri
6Sat9:1711.29:579.92:59-0.43:42-1.66:584:03Full Moon6Sat
7Sun10:1011.610:5210.13:53-0.74:36-1.96:594:03Full Moon7Sun
8Mon11:0411.711:4610.14:46-0.85:29-2.07:004:03Full Moon8Mon
9Tue11:5811.55:40-0.86:22-1.87:014:03Waning Gibbous9Tue
10Wed12:4010.112:5211.26:35-0.67:16-1.57:024:03Waning Gibbous10Wed
11Thu1:359.91:4810.77:31-0.38:10-1.07:034:03Waning Gibbous11Thu
12Fri2:319.62:4710.08:300.19:07-0.57:044:03Third Quarter12Fri
13Sat3:309.43:499.49:330.410:040.07:044:03Third Quarter13Sat
14Sun4:289.24:518.910:360.711:020.57:054:03Third Quarter14Sun
15Mon5:269.15:538.511:410.87:064:03Third Quarter15Mon
16Tue6:239.16:558.212:000.912:440.87:074:03Waning Crescent16Tue
17Wed7:189.17:538.212:581.11:430.77:074:04Waning Crescent17Wed
18Thu8:089.28:448.21:511.22:350.57:084:04Waning Crescent18Thu
19Fri8:549.39:308.32:391.23:200.37:094:04Waning Crescent19Fri
20Sat9:369.410:138.43:221.24:020.27:094:05New Moon20Sat
21Sun10:159.510:538.44:011.14:400.17:104:05New Moon21Sun
22Mon10:539.611:318.54:391.05:160.07:104:05New Moon22Mon
23Tue11:299.65:151.05:500.07:114:06New Moon23Tue
24Wed12:068.512:059.65:511.06:24-0.17:114:07Waxing Crescent24Wed
25Thu12:418.512:409.56:280.96:590.07:124:07Waxing Crescent25Thu
26Fri1:168.61:189.47:070.97:360.07:124:08Waxing Crescent26Fri
27Sat1:548.71:599.27:490.98:160.17:124:08Waxing Crescent27Sat
28Sun2:348.82:459.08:360.89:010.27:134:09First Quarter28Sun
29Mon3:209.03:378.89:270.79:490.37:134:10First Quarter29Mon
30Tue4:099.24:338.710:230.610:410.37:134:11First Quarter30Tue
31Wed5:039.55:348.611:230.311:400.37:134:11First Quarter31Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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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 41% 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 (41% 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