43.7418’ N, 70.0145’ W

South Harpswell, ME

41°
H 51°
L 34°
NW
11mph
Low tide
9:22 am

Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Saturday, October 31, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 2h 05m at 9:22 am (0.7 ft)
Next high tide : 3:41 pm (10.2 ft)
Sunset today : 5:32 pm
Sunrise tomorrow : 7:14 am
Moon phase : Third Quarter (64% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - May 1901

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed9:438.89:559.53:330.43:420.84:326:41Full Moon1Wed
2Thu10:248.810:329.64:130.24:190.94:316:42Full Moon2Thu
3Fri11:038.811:079.64:500.14:540.94:296:43Full Moon3Fri
4Sat11:408.811:419.65:250.15:281.04:286:45Full Moon4Sat
5Sun12:168.76:000.16:021.14:276:46Full Moon5Sun
6Mon12:159.612:528.66:340.16:381.24:256:47Waning Gibbous6Mon
7Tue12:509.51:298.57:110.27:171.34:246:48Waning Gibbous7Tue
8Wed1:289.42:098.47:510.38:001.34:236:49Waning Gibbous8Wed
9Thu2:109.32:548.48:350.38:471.34:216:50Waning Gibbous9Thu
10Fri2:589.23:438.59:230.49:401.34:206:52Third Quarter10Fri
11Sat3:529.24:358.710:140.410:371.14:196:53Third Quarter11Sat
12Sun4:499.15:319.111:080.311:380.84:186:54Third Quarter12Sun
13Mon5:509.26:289.612:050.24:176:55Waning Crescent13Mon
14Tue6:549.47:2510.112:400.31:030.04:156:56Waning Crescent14Tue
15Wed7:569.68:2010.71:42-0.32:00-0.34:146:57Waning Crescent15Wed
16Thu8:549.99:1311.22:40-0.92:55-0.54:136:58New Moon16Thu
17Fri9:5110.110:0611.53:35-1.43:48-0.74:126:59New Moon17Fri
18Sat10:4610.310:5911.64:29-1.84:41-0.74:117:00New Moon18Sat
19Sun11:4110.211:5211.55:23-1.95:35-0.64:107:01New Moon19Sun
20Mon12:3410.16:16-1.76:28-0.44:097:02Waxing Crescent20Mon
21Tue12:4511.21:299.97:09-1.47:220.04:087:03Waxing Crescent21Tue
22Wed1:3910.82:259.68:04-1.08:200.44:087:05Waxing Crescent22Wed
23Thu2:3610.23:229.39:00-0.59:200.84:077:06First Quarter23Thu
24Fri3:359.64:209.19:570.010:221.14:067:06First Quarter24Fri
25Sat4:359.15:169.010:530.511:241.24:057:07First Quarter25Sat
26Sun5:358.76:119.011:490.84:047:08First Quarter26Sun
27Mon6:358.47:059.012:251.212:441.14:047:09Waxing Gibbous27Mon
28Tue7:328.37:549.21:241.11:361.24:037:10Waxing Gibbous28Tue
29Wed8:248.38:389.32:160.92:231.34:027:11Waxing Gibbous29Wed
30Thu9:118.49:209.53:020.73:051.34:027:12Waxing Gibbous30Thu
31Fri9:548.49:599.63:440.53:441.24:017:13Full Moon31Fri
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 transitional phase. Tonight's moon is 64% 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 shifting between spring and neap.

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 Third Quarter (64% illuminated). This places South Harpswell, ME in a transitional tide cycle, so tidal ranges are shifting between spring and neap 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