43.7418’ N, 70.0145’ W

South Harpswell, ME

49°
H 70°
L 56°
NNE
9mph
High tide
10:51 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, September 25, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 4:52 pm (0.4 ft)
Next high tide : in 4h 25m at 10:51 am (9.2 ft)
Sunset today : 6:32 pm
Sunrise tomorrow : 6:30 am
Moon phase : Full Moon (99% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Jan 1961

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun10:399.811:148.74:250.75:01-0.37:134:13Full Moon1Sun
2Mon11:179.711:528.75:030.85:38-0.27:144:14Full Moon2Mon
3Tue11:539.65:400.86:13-0.17:144:15Full Moon3Tue
4Wed12:288.612:299.56:150.96:470.07:134:16Waning Gibbous4Wed
5Thu1:038.51:049.36:521.07:220.17:134:17Waning Gibbous5Thu
6Fri1:398.51:429.17:301.07:590.37:134:18Waning Gibbous6Fri
7Sat2:178.42:238.88:121.18:390.47:134:19Waning Gibbous7Sat
8Sun2:588.43:088.68:581.29:220.67:134:20Third Quarter8Sun
9Mon3:428.53:578.49:471.110:090.77:134:21Third Quarter9Mon
10Tue4:308.74:528.210:401.010:590.87:124:22Third Quarter10Tue
11Wed5:218.95:518.211:380.811:550.77:124:23Third Quarter11Wed
12Thu6:179.36:538.412:390.47:124:24Waning Crescent12Thu
13Fri7:159.77:558.712:530.51:40-0.17:114:26Waning Crescent13Fri
14Sat8:1110.38:529.11:520.22:37-0.87:114:27Waning Crescent14Sat
15Sun9:0610.89:479.62:48-0.23:32-1.37:104:28New Moon15Sun
16Mon10:0111.210:419.93:43-0.64:25-1.87:104:29New Moon16Mon
17Tue10:5511.511:3510.24:37-1.05:17-2.07:094:30New Moon17Tue
18Wed11:4811.65:31-1.26:09-2.17:094:32Waxing Crescent18Wed
19Thu12:2710.412:4211.36:25-1.27:01-1.97:084:33Waxing Crescent19Thu
20Fri1:1910.31:3610.97:19-1.07:53-1.57:074:34Waxing Crescent20Fri
21Sat2:1310.22:3310.38:17-0.78:48-1.07:074:36Waxing Crescent21Sat
22Sun3:109.93:339.79:17-0.39:44-0.47:064:37First Quarter22Sun
23Mon4:089.64:359.010:200.110:420.27:054:38First Quarter23Mon
24Tue5:069.45:398.511:240.311:430.77:044:39First Quarter24Tue
25Wed6:069.26:438.212:300.57:034:41Waxing Gibbous25Wed
26Thu7:069.17:458.112:451.01:330.57:024:42Waxing Gibbous26Thu
27Fri8:029.18:398.21:441.12:290.37:014:43Waxing Gibbous27Fri
28Sat8:529.39:288.32:361.03:170.27:004:45Waxing Gibbous28Sat
29Sun9:369.410:118.43:220.94:010.06:594:46Waxing Gibbous29Sun
30Mon10:189.510:518.64:040.84:40-0.16:584:48Full Moon30Mon
31Tue10:569.511:288.74:420.75:15-0.16:574:49Full Moon31Tue
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 99% 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 Full Moon (99% 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