43.7418’ N, 70.0145’ W

South Harpswell, ME

51°
H -°
L 42°
NE
2mph
Low tide
4:01 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, September 23, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide (tomorrow) : in 5h 14m at 4:01 am (0.6 ft)
Next high tide (tomorrow) : 10:14 am (8.7 ft)
Sunset today : 6:36 pm
Sunrise tomorrow : 6:28 am
Moon phase : Waxing Gibbous (90% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 1963

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:018.410:099.83:460.53:511.06:027:17Waxing Gibbous1Sun
2Mon10:458.910:5510.24:310.04:370.56:047:15Full Moon2Mon
3Tue11:289.411:4010.65:13-0.45:230.06:057:13Full Moon3Tue
4Wed12:129.85:56-0.86:10-0.46:067:12Full Moon4Wed
5Thu12:2710.712:5510.26:40-1.06:58-0.76:077:10Waning Gibbous5Thu
6Fri1:1410.81:4010.57:25-1.17:47-0.96:087:08Waning Gibbous6Fri
7Sat2:0210.62:2710.68:11-0.98:39-0.96:097:06Waning Gibbous7Sat
8Sun2:5410.23:1810.69:01-0.69:35-0.76:107:04Waning Gibbous8Sun
9Mon3:519.84:1410.49:55-0.210:35-0.46:117:03Third Quarter9Mon
10Tue4:539.35:1510.110:530.311:39-0.16:137:01Third Quarter10Tue
11Wed5:598.96:209.911:560.66:146:59Third Quarter11Wed
12Thu7:078.77:279.812:470.11:030.96:156:57Waning Crescent12Thu
13Fri8:148.78:339.81:560.12:110.96:166:55Waning Crescent13Fri
14Sat9:168.99:329.93:000.03:140.76:176:53Waning Crescent14Sat
15Sun10:109.110:2510.03:56-0.14:080.56:186:52Waning Crescent15Sun
16Mon10:589.311:1310.04:45-0.24:570.36:196:50New Moon16Mon
17Tue11:429.411:5710.05:29-0.25:420.26:206:48New Moon17Tue
18Wed12:229.56:09-0.16:240.26:226:46New Moon18Wed
19Thu12:389.812:599.56:470.17:030.26:236:44New Moon19Thu
20Fri1:179.51:349.47:220.37:410.46:246:42Waxing Crescent20Fri
21Sat1:559.22:099.37:560.68:190.56:256:41Waxing Crescent21Sat
22Sun2:348.82:469.18:321.09:000.86:266:39Waxing Crescent22Sun
23Mon3:158.53:268.99:111.39:431.06:276:37Waxing Crescent23Mon
24Tue4:018.14:108.79:551.610:311.26:286:35First Quarter24Tue
25Wed4:517.85:008.510:421.911:231.46:306:33First Quarter25Wed
26Thu5:457.65:548.511:352.06:316:31First Quarter26Thu
27Fri6:427.66:528.612:191.412:312.06:326:30First Quarter27Fri
28Sat7:407.87:518.91:181.21:301.76:336:28Waxing Gibbous28Sat
29Sun8:358.28:469.32:150.92:281.36:346:26Waxing Gibbous29Sun
30Mon9:248.89:389.83:070.43:210.76:356:24Waxing Gibbous30Mon
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

Collapse All
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 90% 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 Gibbous (90% 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