43.7418’ N, 70.0145’ W

South Harpswell, ME

59°
H 62°
L 53°
NW
0mph
Low tide
7:52 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, September 30, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 16m at 7:52 am (0.1 ft)
Next high tide : 2:05 pm (10.5 ft)
Sunset today : 6:23 pm
Sunrise tomorrow : 6:36 am
Moon phase : Waning Gibbous (81% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jul 1951

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:158.010:189.44:050.64:031.75:018:25Waning Crescent1Sun
2Mon11:018.011:019.44:500.54:461.75:028:25New Moon2Mon
3Tue11:448.111:429.55:320.45:271.65:028:25New Moon3Tue
4Wed12:248.26:110.46:051.65:038:25New Moon4Wed
5Thu12:219.51:028.26:480.36:431.55:038:25New Moon5Thu
6Fri12:589.51:398.37:230.37:201.55:048:24Waxing Crescent6Fri
7Sat1:349.52:148.47:570.37:591.45:058:24Waxing Crescent7Sat
8Sun2:119.42:508.58:320.38:391.45:058:23Waxing Crescent8Sun
9Mon2:499.33:278.79:080.39:221.35:068:23Waxing Crescent9Mon
10Tue3:319.14:078.99:480.410:101.15:078:23First Quarter10Tue
11Wed4:188.94:509.210:300.511:010.95:088:22First Quarter11Wed
12Thu5:098.75:379.511:170.611:550.75:088:22First Quarter12Thu
13Fri6:048.56:299.712:080.85:098:21First Quarter13Fri
14Sat7:058.47:2610.012:540.51:040.85:108:20Waxing Gibbous14Sat
15Sun8:108.48:2710.31:580.22:050.85:118:20Waxing Gibbous15Sun
16Mon9:148.69:2710.73:01-0.23:060.65:128:19Waxing Gibbous16Mon
17Tue10:158.910:2611.04:01-0.64:060.35:138:18Full Moon17Tue
18Wed11:149.211:2411.24:59-1.05:040.15:148:18Full Moon18Wed
19Thu12:119.55:54-1.26:01-0.15:148:17Full Moon19Thu
20Fri12:2111.31:059.76:48-1.36:58-0.25:158:16Waning Gibbous20Fri
21Sat1:1611.21:579.97:39-1.37:53-0.25:168:15Waning Gibbous21Sat
22Sun2:0910.82:489.98:29-1.08:480.05:178:14Waning Gibbous22Sun
23Mon3:0310.33:409.89:19-0.59:450.25:188:14Waning Gibbous23Mon
24Tue3:599.64:329.610:100.010:440.55:198:13Third Quarter24Tue
25Wed4:569.05:249.411:020.611:430.85:208:12Third Quarter25Wed
26Thu5:548.46:189.211:541.25:218:11Third Quarter26Thu
27Fri6:548.07:139.012:431.012:491.65:228:10Third Quarter27Fri
28Sat7:567.78:098.91:451.11:471.95:238:09Waning Crescent28Sat
29Sun8:547.69:039.02:441.12:441.95:248:07Waning Crescent29Sun
30Mon9:467.79:529.13:370.93:351.95:268:06Waning Crescent30Mon
31Tue10:347.910:379.34:240.84:201.75:278:05Waning Crescent31Tue
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 spring phase. Tonight's moon is 81% 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 Waning Gibbous (81% 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