Tides Today & Tomorrow in South Harpswell, ME

TIDE TIMES for Friday, July 10, 2026
The tide is currently rising in South Harpswell, ME.
Next low tide (tomorrow) : 2:23 am (0.0 ft)
Next high tide : in 3h 13m at 7:50 pm (10.2 ft)
Sunset today : 8:22 pm
Sunrise tomorrow : 5:08 am
Moon phase : Waning Crescent (20% illuminated)
Tide Station Location : Station #8417647
Common Questions About Tides

South Harpswell, ME Tides - Mar 1995

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Wed10:5110.411:1810.04:35-0.75:04-1.06:165:27New Moon1Wed
2Thu11:3710.35:22-0.85:46-0.86:155:29New Moon2Thu
3Fri12:0010.012:2010.06:06-0.76:26-0.56:135:30Waxing Crescent3Fri
4Sat12:409.91:029.66:49-0.57:06-0.26:115:31Waxing Crescent4Sat
5Sun1:209.71:459.17:31-0.27:450.36:105:33Waxing Crescent5Sun
6Mon2:009.42:298.68:150.28:270.86:085:34Waxing Crescent6Mon
7Tue2:439.03:178.29:010.69:121.26:065:35First Quarter7Tue
8Wed3:318.74:097.89:510.910:021.66:045:36First Quarter8Wed
9Thu4:238.45:057.510:461.210:561.86:035:38First Quarter9Thu
10Fri5:198.26:047.411:441.311:551.96:015:39First Quarter10Fri
11Sat6:198.37:037.612:451.35:595:40Waxing Gibbous11Sat
12Sun7:178.57:577.912:561.71:401.05:575:41Waxing Gibbous12Sun
13Mon8:098.88:438.41:511.42:280.65:565:43Waxing Gibbous13Mon
14Tue8:569.29:258.92:390.93:100.25:545:44Waxing Gibbous14Tue
15Wed9:409.610:059.43:230.33:50-0.25:525:45Full Moon15Wed
16Thu10:229.910:449.94:06-0.24:29-0.65:505:46Full Moon16Thu
17Fri11:0410.111:2410.34:49-0.75:10-0.85:485:48Full Moon17Fri
18Sat11:4810.25:32-1.15:51-0.95:475:49Full Moon18Sat
19Sun12:0510.612:3310.26:18-1.36:35-0.95:455:50Waning Gibbous19Sun
20Mon12:4910.71:2010.07:05-1.37:22-0.75:435:51Waning Gibbous20Mon
21Tue1:3710.72:139.67:56-1.18:14-0.35:415:52Waning Gibbous21Tue
22Wed2:2910.43:119.28:52-0.89:100.15:395:54Third Quarter22Wed
23Thu3:2910.14:158.99:54-0.410:130.45:385:55Third Quarter23Thu
24Fri4:349.75:238.711:00-0.111:210.75:365:56Third Quarter24Fri
25Sat5:449.56:338.712:100.05:345:57Waning Crescent25Sat
26Sun6:559.57:399.012:330.71:180.05:325:58Waning Crescent26Sun
27Mon8:009.68:369.31:420.42:19-0.25:306:00Waning Crescent27Mon
28Tue8:579.89:279.62:410.13:11-0.35:296:01Waning Crescent28Tue
29Wed9:489.910:139.93:34-0.33:58-0.45:276:02New Moon29Wed
30Thu10:359.910:5510.04:21-0.54:41-0.35:256:03New Moon30Thu
31Fri11:199.711:3410.05:05-0.65:21-0.25:236:04New Moon31Fri
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 11:06 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 20% 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 Waning Crescent (20% 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