43.7418’ N, 70.0145’ W

South Harpswell, ME

64°
H -°
L 61°
S
11mph
Low tide
6:45 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, September 12, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 33m at 6:45 pm (-0.5 ft)
Next high tide (tomorrow) : 1:00 am (10.1 ft)
Sunset today : 6:56 pm
Sunrise tomorrow : 6:16 am
Moon phase : New Moon (3% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Apr 1983

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri1:1310.21:479.47:30-0.77:440.35:216:06Waning Gibbous1Fri
2Sat1:579.82:378.88:19-0.28:300.95:206:07Waning Gibbous2Sat
3Sun2:459.33:308.39:100.39:211.45:186:08Third Quarter3Sun
4Mon3:378.94:267.810:050.810:161.85:166:09Third Quarter4Mon
5Tue4:338.55:257.611:031.111:162.15:146:10Third Quarter5Tue
6Wed5:338.36:267.612:051.35:136:12Third Quarter6Wed
7Thu6:368.27:237.712:192.11:061.35:116:13Waning Crescent7Thu
8Fri7:348.48:148.11:201.91:591.15:096:14Waning Crescent8Fri
9Sat8:258.78:578.42:131.52:430.85:076:15Waning Crescent9Sat
10Sun9:098.99:368.92:571.13:220.65:066:16Waning Crescent10Sun
11Mon9:509.210:129.23:380.73:570.35:046:18New Moon11Mon
12Tue10:299.310:469.64:160.34:320.25:026:19New Moon12Tue
13Wed11:089.511:219.94:53-0.15:070.15:006:20New Moon13Wed
14Thu11:469.511:5610.15:32-0.45:440.14:596:21New Moon14Thu
15Fri12:269.46:12-0.66:230.14:576:22Waxing Crescent15Fri
16Sat12:3410.21:099.36:54-0.77:050.34:556:24Waxing Crescent16Sat
17Sun1:1710.21:569.07:41-0.67:530.54:546:25Waxing Crescent17Sun
18Mon2:0510.12:508.88:33-0.48:460.84:526:26First Quarter18Mon
19Tue3:009.93:518.69:31-0.29:461.04:506:27First Quarter19Tue
20Wed4:039.64:578.510:340.010:521.14:496:28First Quarter20Wed
21Thu5:119.56:068.611:410.14:476:29First Quarter21Thu
22Fri6:239.57:129.012:021.012:490.04:466:31Waxing Gibbous22Fri
23Sat7:329.68:129.51:130.71:52-0.24:446:32Waxing Gibbous23Sat
24Sun9:339.910:049.93:170.23:47-0.45:427:33Waxing Gibbous24Sun
25Mon10:2810.010:5310.34:14-0.34:37-0.55:417:34Full Moon25Mon
26Tue11:2010.011:3810.55:05-0.75:23-0.45:397:35Full Moon26Tue
27Wed12:099.95:53-0.96:08-0.25:387:37Full Moon27Wed
28Thu12:2210.612:559.76:39-1.06:500.15:367:38Full Moon28Thu
29Fri1:0310.41:409.47:23-0.87:320.55:357:39Waning Gibbous29Fri
30Sat1:4410.12:249.08:07-0.58:140.95:337:40Waning Gibbous30Sat
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 3% 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 (3% 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