43.7418’ N, 70.0145’ W

South Harpswell, ME

63°
H 69°
L 47°
WNW
3mph
Low tide
7:46 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, September 14, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 36m at 7:46 am (0.2 ft)
Next high tide : 2:00 pm (9.9 ft)
Sunset today : 6:52 pm
Sunrise tomorrow : 6:18 am
Moon phase : Waxing Crescent (14% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1980

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat10:589.611:249.04:450.45:12-0.26:155:28Full Moon1Sat
2Sun11:359.511:589.15:220.35:46-0.16:145:30Full Moon2Sun
3Mon12:109.45:570.26:170.06:125:31Full Moon3Mon
4Tue12:309.112:459.26:310.36:490.26:105:32Waning Gibbous4Tue
5Wed1:029.11:198.97:060.37:220.46:095:33Waning Gibbous5Wed
6Thu1:359.01:568.67:430.57:580.76:075:35Waning Gibbous6Thu
7Fri2:118.92:378.38:240.68:380.96:055:36Waning Gibbous7Fri
8Sat2:528.83:238.19:090.79:231.26:035:37Third Quarter8Sat
9Sun3:388.74:157.99:590.810:141.36:025:38Third Quarter9Sun
10Mon4:308.75:137.810:550.911:101.36:005:40Third Quarter10Mon
11Tue5:298.86:167.911:560.75:585:41Third Quarter11Tue
12Wed6:329.17:198.312:121.21:000.45:565:42Waning Crescent12Wed
13Thu7:369.68:188.91:160.72:00-0.25:545:43Waning Crescent13Thu
14Fri8:3410.29:119.62:160.12:55-0.85:535:45Waning Crescent14Fri
15Sat9:2910.710:0210.23:12-0.63:46-1.35:515:46New Moon15Sat
16Sun10:2211.110:5210.84:05-1.24:36-1.75:495:47New Moon16Sun
17Mon11:1511.311:4111.14:58-1.75:25-1.85:475:48New Moon17Mon
18Tue12:0711.25:50-1.96:14-1.75:455:50Waxing Crescent18Tue
19Wed12:3011.212:5910.96:42-1.97:03-1.45:445:51Waxing Crescent19Wed
20Thu1:2011.11:5210.47:35-1.67:55-0.85:425:52Waxing Crescent20Thu
21Fri2:1210.72:509.78:31-1.18:50-0.25:405:53First Quarter21Fri
22Sat3:0910.23:529.19:31-0.69:500.45:385:54First Quarter22Sat
23Sun4:109.64:568.610:35-0.110:540.95:365:56First Quarter23Sun
24Mon5:159.26:028.311:420.35:355:57First Quarter24Mon
25Tue6:218.97:078.312:011.212:490.55:335:58Waxing Gibbous25Tue
26Wed7:258.98:058.41:091.31:500.55:315:59Waxing Gibbous26Wed
27Thu8:219.08:558.62:081.12:420.45:296:00Waxing Gibbous27Thu
28Fri9:109.19:398.92:590.83:270.35:276:02Waxing Gibbous28Fri
29Sat9:549.210:189.13:430.64:060.35:266:03Full Moon29Sat
30Sun10:349.310:549.34:220.44:420.25:246:04Full Moon30Sun
31Mon11:119.311:279.44:590.25:140.35:226:05Full Moon31Mon
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 14% 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 Waxing Crescent (14% 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