Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, June 25, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 4h 55m at 2:43 pm (1.5 ft)
Next high tide : 9:02 pm (9.3 ft)
Sunset today : 8:26 pm
Sunrise tomorrow : 4:59 am
Moon phase : Waxing Gibbous (84% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2014

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon3:598.64:189.410:020.810:380.66:037:16First Quarter1Mon
2Tue4:518.45:119.410:530.911:340.66:047:14First Quarter2Tue
3Wed5:498.46:099.611:490.96:067:12First Quarter3Wed
4Thu6:518.57:139.812:350.512:510.86:077:10Waxing Gibbous4Thu
5Fri7:578.88:1710.21:390.21:560.56:087:09Waxing Gibbous5Fri
6Sat8:599.39:1910.62:42-0.32:590.06:097:07Waxing Gibbous6Sat
7Sun9:569.810:1611.03:40-0.83:58-0.66:107:05Full Moon7Sun
8Mon10:5010.411:1211.24:34-1.24:54-1.16:117:03Full Moon8Mon
9Tue11:4210.85:25-1.45:48-1.46:127:01Full Moon9Tue
10Wed12:0511.312:3211.16:16-1.56:41-1.56:137:00Full Moon10Wed
11Thu12:5811.11:2211.17:06-1.37:33-1.46:156:58Waning Gibbous11Thu
12Fri1:5010.72:1210.97:55-0.98:26-1.16:166:56Waning Gibbous12Fri
13Sat2:4310.23:0410.58:46-0.49:21-0.66:176:54Waning Gibbous13Sat
14Sun3:399.63:5910.09:390.210:20-0.16:186:52Third Quarter14Sun
15Mon4:389.04:579.610:360.711:200.46:196:50Third Quarter15Mon
16Tue5:388.65:579.211:351.26:206:49Third Quarter16Tue
17Wed6:398.36:579.012:220.812:371.46:216:47Third Quarter17Wed
18Thu7:398.27:578.91:250.91:401.56:226:45Waning Crescent18Thu
19Fri8:358.38:529.02:230.92:381.46:246:43Waning Crescent19Fri
20Sat9:258.59:419.13:150.83:281.26:256:41Waning Crescent20Sat
21Sun10:098.810:249.33:590.74:120.96:266:39Waning Crescent21Sun
22Mon10:489.011:049.44:370.54:510.76:276:38New Moon22Mon
23Tue11:259.211:429.45:130.45:280.46:286:36New Moon23Tue
24Wed11:599.45:460.46:030.36:296:34New Moon24Wed
25Thu12:189.412:329.56:190.46:390.26:306:32New Moon25Thu
26Fri12:549.31:059.66:520.47:150.16:316:30Waxing Crescent26Fri
27Sat1:299.21:409.77:270.57:530.16:336:28Waxing Crescent27Sat
28Sun2:079.12:179.78:060.68:350.16:346:27Waxing Crescent28Sun
29Mon2:498.93:009.78:480.79:220.26:356:25Waxing Crescent29Mon
30Tue3:368.73:509.69:370.810:150.36:366:23First Quarter30Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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What time does the tide turn (slack tide) in South Harpswell, ME today?

Slack tide in South Harpswell, ME is approximately 5:52 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

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 84% 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 (84% 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