Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Monday, August 3, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 9:12 pm (0.5 ft)
Next high tide : in 6h 15m at 3:05 pm (9.4 ft)
Sunset today : 8:01 pm
Sunrise tomorrow : 5:31 am
Moon phase : Waning Gibbous (75% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Feb 2087

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat9:129.59:488.52:530.93:34-0.16:554:51Waning Crescent1Sat
2Sun9:5510.010:309.03:380.44:15-0.56:544:52New Moon2Sun
3Mon10:3910.311:119.54:22-0.14:56-0.96:534:53New Moon3Mon
4Tue11:2210.611:529.95:07-0.55:37-1.26:524:55New Moon4Tue
5Wed12:0710.65:52-0.86:20-1.36:514:56Waxing Crescent5Wed
6Thu12:3510.212:5310.56:39-1.07:04-1.36:504:57Waxing Crescent6Thu
7Fri1:2010.41:4210.27:29-1.07:51-1.06:484:59Waxing Crescent7Fri
8Sat2:0810.32:369.78:22-0.98:42-0.66:475:00First Quarter8Sat
9Sun3:0210.23:359.29:20-0.69:39-0.16:465:02First Quarter9Sun
10Mon4:019.94:408.710:23-0.310:390.36:445:03First Quarter10Mon
11Tue5:049.75:498.411:300.011:460.66:435:04First Quarter11Tue
12Wed6:129.67:018.412:420.06:425:06Waxing Gibbous12Wed
13Thu7:219.68:068.512:570.71:50-0.16:405:07Waxing Gibbous13Thu
14Fri8:249.89:048.82:030.62:49-0.36:395:08Waxing Gibbous14Fri
15Sat9:199.99:549.13:010.33:41-0.56:375:10Full Moon15Sat
16Sun10:0910.010:409.33:520.14:27-0.66:365:11Full Moon16Sun
17Mon10:5410.011:229.44:39-0.15:09-0.66:345:12Full Moon17Mon
18Tue11:369.95:22-0.25:48-0.56:335:14Full Moon18Tue
19Wed12:019.512:169.66:03-0.16:24-0.26:315:15Waning Gibbous19Wed
20Thu12:379.412:549.36:410.06:580.06:305:16Waning Gibbous20Thu
21Fri1:129.31:328.97:190.27:340.46:285:18Waning Gibbous21Fri
22Sat1:489.12:128.57:590.48:120.86:275:19Waning Gibbous22Sat
23Sun2:278.92:568.18:420.78:531.16:255:20Third Quarter23Sun
24Mon3:118.63:447.79:291.09:391.46:235:22Third Quarter24Mon
25Tue3:598.44:387.510:201.210:301.76:225:23Third Quarter25Tue
26Wed4:528.35:367.311:161.311:251.86:205:24Third Quarter26Wed
27Thu5:498.46:377.412:161.26:185:26Waning Crescent27Thu
28Fri6:508.67:347.812:261.71:160.96:175:27Waning Crescent28Fri
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8417647)

Common Questions About South Harpswell, ME Tides

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

Slack tide in South Harpswell, ME is approximately 6:08 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 transitional phase. Tonight's moon is 75% 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 Waning Gibbous (75% 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