Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Wednesday, July 8, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide : 11:36 am (0.6 ft)
Next high tide : in 2h 26m at 5:29 am (8.7 ft)
Sunset today : 8:23 pm
Sunrise tomorrow : 5:06 am
Moon phase : Third Quarter (41% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1999

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Mon10:2410.210:569.54:08-0.14:42-0.86:165:28Full Moon1Mon
2Tue11:1010.211:389.64:55-0.35:25-0.76:155:29Full Moon2Tue
3Wed11:5310.05:39-0.36:04-0.56:135:30Full Moon3Wed
4Thu12:179.512:339.76:20-0.26:41-0.26:115:31Waning Gibbous4Thu
5Fri12:549.41:139.36:590.07:170.16:105:33Waning Gibbous5Fri
6Sat1:319.31:538.97:390.27:550.56:085:34Waning Gibbous6Sat
7Sun2:099.02:368.58:210.58:350.96:065:35Waning Gibbous7Sun
8Mon2:518.83:238.19:060.89:191.36:045:36Third Quarter8Mon
9Tue3:368.54:147.79:551.110:071.66:035:38Third Quarter9Tue
10Wed4:278.35:107.510:491.311:011.86:015:39Third Quarter10Wed
11Thu5:228.26:097.411:471.311:591.95:595:40Third Quarter11Thu
12Fri6:218.37:097.612:481.25:575:41Waning Crescent12Fri
13Sat7:208.68:038.012:591.71:440.85:565:43Waning Crescent13Sat
14Sun8:139.08:508.51:541.22:330.45:545:44Waning Crescent14Sun
15Mon9:019.69:349.02:440.73:18-0.25:525:45Waning Crescent15Mon
16Tue9:4710.010:179.63:310.14:01-0.65:505:46New Moon16Tue
17Wed10:3310.410:5910.24:17-0.54:44-1.05:485:48New Moon17Wed
18Thu11:1910.711:4210.65:03-1.05:28-1.35:475:49New Moon18Thu
19Fri12:0510.75:50-1.46:12-1.35:455:50Waxing Crescent19Fri
20Sat12:2710.812:5410.66:38-1.56:59-1.15:435:51Waxing Crescent20Sat
21Sun1:1310.91:4510.27:29-1.47:48-0.85:415:52Waxing Crescent21Sun
22Mon2:0410.72:419.78:23-1.28:42-0.35:395:54Waxing Crescent22Mon
23Tue3:0010.33:439.29:23-0.89:420.25:385:55First Quarter23Tue
24Wed4:029.94:498.810:27-0.310:460.65:365:56First Quarter24Wed
25Thu5:099.65:598.611:360.011:560.95:345:57First Quarter25Thu
26Fri6:199.47:088.612:470.15:325:59Waxing Gibbous26Fri
27Sat7:279.48:108.91:080.81:520.05:306:00Waxing Gibbous27Sat
28Sun8:289.59:049.12:120.62:48-0.15:286:01Waxing Gibbous28Sun
29Mon9:229.79:519.43:070.33:37-0.25:276:02Waxing Gibbous29Mon
30Tue10:099.710:349.63:560.04:21-0.25:256:03Full Moon30Tue
31Wed10:539.711:139.64:40-0.15:00-0.15:236:05Full Moon31Wed
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 8:32 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 41% 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 (41% 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