43.7418’ N, 70.0145’ W

South Harpswell, ME

69°
H 69°
L 48°
NW
18mph
High tide
2:00 pm

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, September 14, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 8:15 pm (-0.1 ft)
Next high tide : in 20m at 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 - Jul 1979

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:218.74:598.610:350.810:591.65:018:25First Quarter1Sun
2Mon5:108.55:448.711:191.011:491.65:028:25First Quarter2Mon
3Tue6:008.26:318.812:051.15:028:25First Quarter3Tue
4Wed6:548.17:209.012:421.412:551.25:038:25Waxing Gibbous4Wed
5Thu7:508.28:119.41:381.21:471.15:048:24Waxing Gibbous5Thu
6Fri8:458.39:019.82:330.72:390.95:048:24Waxing Gibbous6Fri
7Sat9:388.69:5010.33:250.23:310.65:058:24Waxing Gibbous7Sat
8Sun10:299.010:3910.74:15-0.34:210.35:068:23Full Moon8Sun
9Mon11:209.411:2911.15:04-0.85:120.05:068:23Full Moon9Mon
10Tue12:119.75:54-1.26:04-0.35:078:23Full Moon10Tue
11Wed12:2111.31:0210.06:44-1.56:56-0.55:088:22Waning Gibbous11Wed
12Thu1:1311.41:5310.27:35-1.67:50-0.55:098:22Waning Gibbous12Thu
13Fri2:0611.22:4610.38:26-1.58:46-0.55:098:21Waning Gibbous13Fri
14Sat3:0210.93:4210.39:20-1.29:45-0.35:108:20Waning Gibbous14Sat
15Sun4:0110.44:4010.210:15-0.910:47-0.15:118:20Third Quarter15Sun
16Mon5:029.95:3810.111:13-0.411:510.15:128:19Third Quarter16Mon
17Tue6:069.46:3810.012:120.05:138:18Third Quarter17Tue
18Wed7:109.07:3810.012:560.21:130.45:148:18Waning Crescent18Wed
19Thu8:158.88:379.92:020.22:150.75:158:17Waning Crescent19Thu
20Fri9:158.79:3210.03:030.13:120.85:168:16Waning Crescent20Fri
21Sat10:108.710:2210.03:580.04:040.85:178:15Waning Crescent21Sat
22Sun10:598.811:0810.04:47-0.14:520.85:188:14New Moon22Sun
23Mon11:448.811:519.95:32-0.15:360.85:198:13New Moon23Mon
24Tue12:268.86:14-0.16:170.95:208:12New Moon24Tue
25Wed12:319.81:058.96:510.06:550.95:218:11New Moon25Wed
26Thu1:099.71:428.97:270.17:331.05:228:10Waxing Crescent26Thu
27Fri1:469.52:188.88:010.28:111.05:238:09Waxing Crescent27Fri
28Sat2:239.32:558.88:370.48:501.15:248:08Waxing Crescent28Sat
29Sun3:029.13:338.89:130.59:331.25:258:07Waxing Crescent29Sun
30Mon3:438.84:138.89:530.710:181.25:268:06First Quarter30Mon
31Tue4:298.54:568.910:360.911:061.25:278:05First Quarter31Tue
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