Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Thursday, July 9, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 1:19 am (0.3 ft)
Next high tide : in 3h 33m at 6:51 pm (9.9 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:07 am
Moon phase : Waning Crescent (30% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 2057

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sat1:0110.01:269.67:11-0.27:270.16:047:15Waxing Crescent1Sat
2Sun1:409.92:039.87:50-0.38:10-0.16:057:13Waxing Crescent2Sun
3Mon2:239.82:449.98:31-0.28:57-0.16:067:11Waxing Crescent3Mon
4Tue3:099.53:3110.09:160.09:49-0.16:077:09First Quarter4Tue
5Wed4:029.24:2310.010:060.310:450.06:097:08First Quarter5Wed
6Thu5:018.95:219.911:020.611:470.16:107:06First Quarter6Thu
7Fri6:058.66:249.912:020.86:117:04First Quarter7Fri
8Sat7:138.67:329.912:540.11:080.86:127:02Waxing Gibbous8Sat
9Sun8:228.78:3910.12:030.02:170.76:137:00Waxing Gibbous9Sun
10Mon9:259.09:4110.43:08-0.33:210.46:146:59Waxing Gibbous10Mon
11Tue10:219.410:3710.64:05-0.64:180.06:156:57Full Moon11Tue
12Wed11:129.711:2910.74:57-0.85:12-0.36:166:55Full Moon12Wed
13Thu12:0110.05:46-0.86:02-0.46:176:53Full Moon13Thu
14Fri12:1910.612:4610.16:31-0.76:50-0.56:196:51Full Moon14Fri
15Sat1:0510.31:2910.07:14-0.47:36-0.36:206:49Waning Gibbous15Sat
16Sun1:519.92:109.87:560.08:210.06:216:48Waning Gibbous16Sun
17Mon2:369.42:539.58:380.59:080.36:226:46Waning Gibbous17Mon
18Tue3:238.83:379.29:211.09:570.76:236:44Waning Gibbous18Tue
19Wed4:148.34:268.910:081.510:491.16:246:42Third Quarter19Wed
20Thu5:077.95:198.610:591.811:451.36:256:40Third Quarter20Thu
21Fri6:047.76:158.411:542.16:266:38Third Quarter21Fri
22Sat7:037.67:148.412:441.512:522.26:286:36Third Quarter22Sat
23Sun8:017.78:128.61:441.41:522.06:296:35Waning Crescent23Sun
24Mon8:547.99:038.92:391.22:471.76:306:33Waning Crescent24Mon
25Tue9:408.39:499.23:260.93:341.36:316:31Waning Crescent25Tue
26Wed10:218.710:329.64:070.54:160.96:326:29Waning Crescent26Wed
27Thu10:599.211:129.84:450.24:570.46:336:27New Moon27Thu
28Fri11:369.611:5310.05:22-0.15:38-0.16:346:25New Moon28Fri
29Sat12:1310.05:59-0.36:19-0.46:366:24New Moon29Sat
30Sun12:3410.112:5210.36:39-0.47:03-0.76:376:22Waxing Crescent30Sun
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 10:05 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 30% 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 Crescent (30% 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