Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Tuesday, July 7, 2026
The tide is currently falling in South Harpswell, ME.
Next low tide : in 3h 15m at 11:21 pm (0.8 ft)
Next high tide (tomorrow) : 5:29 am (8.7 ft)
Sunset today : 8:24 pm
Sunrise tomorrow : 5:05 am
Moon phase : Third Quarter (52% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Sep 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed3:269.83:5010.29:33-0.210:07-0.36:037:16Third Quarter1Wed
2Thu4:229.44:4610.110:260.111:07-0.16:047:15Third Quarter2Thu
3Fri5:249.15:4710.011:250.46:057:13Third Quarter3Fri
4Sat6:308.96:5210.012:110.012:280.66:067:11Waning Crescent4Sat
5Sun7:388.87:5910.01:190.01:350.66:077:09Waning Crescent5Sun
6Mon8:459.09:0310.22:27-0.12:420.56:087:07Waning Crescent6Mon
7Tue9:449.210:0110.43:28-0.43:420.26:107:06Waning Crescent7Tue
8Wed10:389.510:5410.54:23-0.64:370.06:117:04New Moon8Wed
9Thu11:279.711:4410.55:13-0.75:27-0.26:127:02New Moon9Thu
10Fri12:139.95:59-0.76:15-0.36:137:00New Moon10Fri
11Sat12:3010.312:569.96:42-0.57:00-0.26:146:58New Moon11Sat
12Sun1:1410.01:369.87:23-0.27:430.06:156:57Waxing Crescent12Sun
13Mon1:579.72:169.68:020.28:250.26:166:55Waxing Crescent13Mon
14Tue2:409.22:579.38:420.69:100.66:176:53Waxing Crescent14Tue
15Wed3:258.83:409.19:241.09:560.96:196:51Waxing Crescent15Wed
16Thu4:138.34:278.810:091.410:471.26:206:49First Quarter16Thu
17Fri5:058.05:188.610:581.711:401.46:216:47First Quarter17Fri
18Sat6:007.86:138.511:511.96:226:46First Quarter18Sat
19Sun6:587.77:108.512:371.512:472.06:236:44First Quarter19Sun
20Mon7:557.88:068.71:361.41:461.96:246:42Waxing Gibbous20Mon
21Tue8:488.18:589.12:311.12:401.56:256:40Waxing Gibbous21Tue
22Wed9:348.59:459.53:190.73:281.16:266:38Waxing Gibbous22Wed
23Thu10:179.010:299.84:010.34:130.56:286:36Waxing Gibbous23Thu
24Fri10:579.511:1310.24:42-0.14:570.06:296:35Full Moon24Fri
25Sat11:389.911:5610.45:23-0.45:41-0.56:306:33Full Moon25Sat
26Sun12:1910.46:04-0.76:26-0.86:316:31Full Moon26Sun
27Mon12:4110.51:0110.76:47-0.87:13-1.06:326:29Waning Gibbous27Mon
28Tue1:2810.41:4610.87:32-0.78:02-1.16:336:27Waning Gibbous28Tue
29Wed2:1710.22:3510.78:20-0.58:54-0.96:356:25Waning Gibbous29Wed
30Thu3:119.83:2910.59:12-0.29:51-0.76:366:24Third Quarter30Thu
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 2:25 am — 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 neap phase. Tonight's moon is 52% 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 minimum.

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 (52% illuminated). This places South Harpswell, ME in a neap tide cycle, so tidal ranges are near their weekly minimum 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